diff --git a/func/Module_approximately_align.py b/func/Module_approximately_align.py
index e585dd2..2636c13 100644
--- a/func/Module_approximately_align.py
+++ b/func/Module_approximately_align.py
@@ -12,7 +12,7 @@ from overrides import overrides
 from pandas import read_csv, DataFrame
 from scipy.signal import find_peaks, resample, butter, sosfiltfilt, correlate
 from yaml import dump, load, FullLoader
-
+from sklearn.linear_model import TheilSenRegressor
 from func.utils.PublicFunc import PublicFunc
 from func.utils.Constants import Constants, ConfigParams
 from func.utils.Result import Result
@@ -44,7 +44,9 @@ ButtonState = {
         "radioButton_PABD": False,
         "radioButton_NTHO": False,
         "radioButton_NABD": False,
-        "radioButton_custom": False
+        "radioButton_custom": False,
+        "radioButton_freqTHO": False,
+        "radioButton_freqABD": False,
     },
     "Current": {
         "pushButton_input_setting": True,
@@ -65,7 +67,9 @@ ButtonState = {
         "radioButton_PABD": False,
         "radioButton_NTHO": False,
         "radioButton_NABD": False,
-        "radioButton_custom": False
+        "radioButton_custom": False,
+        "radioButton_freqTHO": False,
+        "radioButton_freqABD": False,
     }
 }
 
@@ -259,6 +263,8 @@ class MainWindow_approximately_align(QMainWindow):
         self.ui.radioButton_PABD.clicked.connect(self.__enableAlign__)
         self.ui.radioButton_NABD.clicked.connect(self.__enableAlign__)
         self.ui.radioButton_custom.clicked.connect(self.__enableAlign__)
+        self.ui.radioButton_freqTHO.clicked.connect(self.__EstimateFrequencySelect__)
+        self.ui.radioButton_freqABD.clicked.connect(self.__EstimateFrequencySelect__)
 
 
     @overrides
@@ -305,6 +311,11 @@ class MainWindow_approximately_align(QMainWindow):
         self.ui.radioButton_NABD.setText("备选4")
         self.ui.radioButton_NTHO.setText("备选2")
         self.ui.spinBox_SelectEpoch.setMinimum(0)
+        self.ui.radioButton_freqABD.setChecked(False)
+        self.ui.radioButton_freqTHO.setChecked(False)
+        self.ui.radioButton_freqTHO.setText("备选1")
+        self.ui.radioButton_freqABD.setText("备选2")
+
 
     def __plot__(self, *args, **kwargs):
         sender = self.sender()
@@ -328,7 +339,7 @@ class MainWindow_approximately_align(QMainWindow):
             elif sender == self.ui.radioButton_custom:
                 result = self.DrawPicTryAlign()
             elif sender == self.ui.pushButton_ChangeView:
-                result = self.DrawAlignScatter()
+                result = self.DrawAlignScatter(*args, **kwargs)
             elif sender == self.ui.pushButton_JUMP:
                 result = self.DrawPicByEpoch(*args, **kwargs)
             elif sender == self.ui.pushButton_EM1:
@@ -570,7 +581,39 @@ class MainWindow_approximately_align(QMainWindow):
 
         # 绘图
         PublicFunc.progressbar_update(self, 1, 1, Constants.DRAWING_DATA, 0)
-        result = self.__plot__()
+        response = self.data.get_corr_by_epoch()
+        epoch_min = response.data["epoch_min"]
+        epoch_max = response.data["epoch_max"]
+        tho_bias_list = response.data["tho_bias_list"]
+        abd_bias_list = response.data["abd_bias_list"]
+
+        response = self.data.estimate_frequency(tho_bias_list)
+        tho_y = response.data["estimate_y"]
+        tho_frequency = response.data["frequency"]
+        tho_slope = response.data["slope"]
+        tho_intercept = response.data["intercept"]
+        response = self.data.estimate_frequency(abd_bias_list)
+        abd_y = response.data["estimate_y"]
+        abd_frequency = response.data["frequency"]
+        abd_slope = response.data["slope"]
+        abd_intercept = response.data["intercept"]
+        result = self.__plot__(epoch_min, epoch_max, tho_bias_list, abd_bias_list, tho_y, abd_y,
+                               tho_frequency, abd_frequency)
+        Config["estimate"] = {}
+        Config["estimate"]["tho_frequency"] = tho_frequency
+        Config["estimate"]["tho_slope"] = tho_slope
+        Config["estimate"]["tho_intercept"] = tho_intercept
+
+        Config["estimate"]["abd_frequency"] = abd_frequency
+        Config["estimate"]["abd_slope"] = abd_slope
+        Config["estimate"]["abd_intercept"] = abd_intercept
+
+        self.ui.radioButton_freqTHO.setText(str(Config["estimate"]["tho_frequency"]))
+        self.ui.radioButton_freqABD.setText(str(Config["estimate"]["abd_frequency"]))
+        ButtonState["Current"]["radioButton_freqTHO"] = True
+        ButtonState["Current"]["radioButton_freqABD"] = True
+
+
         if not result.status:
             PublicFunc.text_output(self.ui, "(1/1)" + result.info, Constants.TIPS_TYPE_ERROR)
             PublicFunc.msgbox_output(self, result.info, Constants.MSGBOX_TYPE_ERROR)
@@ -599,6 +642,25 @@ class MainWindow_approximately_align(QMainWindow):
 
         PublicFunc.finish_operation(self, ButtonState)
 
+    def __EstimateFrequencySelect__(self):
+        PublicFunc.__disableAllButton__(self, ButtonState)
+        if self.ui.radioButton_freqTHO.isChecked():
+            frequency = Config["estimate"]["tho_frequency"]
+            Config["estimate_freq"] = frequency
+            Config["estimate_slope"] = Config["estimate"]["tho_slope"]
+            Config["estimate_intercept"] = Config["estimate"]["tho_intercept"]
+        elif self.ui.radioButton_freqABD.isChecked():
+            frequency = Config["estimate"]["abd_frequency"]
+            Config["estimate_freq"] = frequency
+            Config["estimate_slope"] = Config["estimate"]["abd_slope"]
+            Config["estimate_intercept"] = Config["estimate"]["abd_intercept"]
+        else:
+            return
+
+        ButtonState["Current"]["pushButton_save"] = True
+        PublicFunc.finish_operation(self, ButtonState)
+
+
     def __EpochChange__(self):
         # 获取当前值
         value = self.ui.spinBox_SelectEpoch.value()
@@ -682,7 +744,6 @@ class MainWindow_approximately_align(QMainWindow):
         ButtonState["Current"]["pushButton_EP1"] = True
         ButtonState["Current"]["pushButton_EP10"] = True
         ButtonState["Current"]["pushButton_EP100"] = True
-        ButtonState["Current"]["pushButton_save"] = True
         ButtonState["Current"]["pushButton_ChangeView"] = True
         PublicFunc.finish_operation(self, ButtonState)
 
@@ -886,27 +947,26 @@ class MainWindow_approximately_align(QMainWindow):
         # 返回图片以便存到QPixImage
         return Result().success(info=Constants.DRAW_FINISHED)
 
-    def DrawAlignScatter(self):
+    def DrawAlignScatter(self, epoch_min, epoch_max, tho_bias_list, abd_bias_list, tho_y, abd_y,
+                               tho_frequency, abd_frequency):
         try:
-            response = self.data.get_corr_by_epoch()
-            epoch_min = response.data["epoch_min"]
-            epoch_max = response.data["epoch_max"]
-            tho_bias_list = response.data["tho_bias_list"]
-            abd_bias_list = response.data["abd_bias_list"]
-
             ax1 = self.fig.add_subplot(211)
             ax1.scatter(linspace(epoch_min, epoch_max, len(tho_bias_list)), tho_bias_list,  alpha=0.2)
+            ax1.plot(linspace(epoch_min, epoch_max, len(tho_bias_list)), tho_y, color='orange', label=f"THO Frequency: {tho_frequency} Hz")
             ax1.axhline(y=0, color='red', linestyle='--', alpha=0.3)
             ax1.set_xlabel("Epoch")
             ax1.set_ylabel("Tho Bias / s")
             ax1.set_title("THO")
+            ax1.legend()
 
             ax2 = self.fig.add_subplot(212)
             ax2.scatter(linspace(epoch_min, epoch_max, len(abd_bias_list)), abd_bias_list, alpha=0.2)
+            ax2.plot(linspace(epoch_min, epoch_max, len(abd_bias_list)), abd_y, color='orange', label=f"ABD Frequency: {abd_frequency} Hz")
             ax2.axhline(y=0, color='red', linestyle='--', alpha=0.3)
             ax2.set_xlabel("Epoch")
             ax2.set_ylabel("Abd Bias / s")
             ax2.set_title("ABD")
+            ax2.legend()
             self.fig.canvas.draw()
 
             return Result().success(info=Constants.DRAW_FINISHED)
@@ -979,8 +1039,18 @@ class Data:
         try:
             pos = Config["pos"]
             ApplyFrequency = Config["ApplyFrequency"]
+            estimate_freq = Config["estimate_freq"]
+            estimate_slope = Config["estimate_slope"]
+            estimate_intercept = Config["estimate_intercept"]
             # 保存到csv中
-            df = DataFrame({"pos": [pos], "epoch": [epoch], "ApplyFrequency": [ApplyFrequency]})
+            df = DataFrame({"pos": [pos],
+                            "epoch": [epoch],
+                            "ApplyFrequency": [ApplyFrequency],
+                            "estimate_freq": [estimate_freq],
+                            "estimate_slope": [estimate_slope],
+                            "estimate_intercept": [estimate_intercept]
+                            })
+
             df.to_csv(Path(Config["Path"]["Save"]), mode="w", header=True, index=False)
         except Exception as e:
             return Result().failure(info=Constants.SAVE_FAILURE + Constants.FAILURE_REASON[
@@ -1221,6 +1291,7 @@ class Data:
 
             epoch_min = response.data["epoch_min"]
             epoch_max = response.data["epoch_max"]
+            epoch_second = ConfigParams.APPROXIMATELY_ALIGN_CONFIG_NEW_CONTENT["Second_PerEpoch"]
 
             temp_freq = ConfigParams.APPROXIMATELY_ALIGN_CONFIG_NEW_CONTENT["TempFrequency"]
             window_epoch = ConfigParams.APPROXIMATELY_ALIGN_CONFIG_NEW_CONTENT["CorrByEpoch"]["window_epoch"]
@@ -1231,8 +1302,8 @@ class Data:
             pos = Config["pos"] * temp_freq // Config["ApplyFrequency"]
 
             for epoch in range(epoch_min, epoch_max):
-                SP = epoch * 30 * temp_freq
-                EP = (epoch + window_epoch) * 30 * temp_freq
+                SP = epoch * epoch_second * temp_freq
+                EP = (epoch + window_epoch) * epoch_second * temp_freq
                 tho_seg = self.processed_Tho[SP:EP]
                 abd_seg = self.processed_Abd[SP:EP]
 
@@ -1260,3 +1331,32 @@ class Data:
                     "Get_Corr_By_Epoch_Exception"] + "\n" + format_exc())
 
         return Result().success(info=Constants.APPROXIMATELY_EPOCH_GET_FINISHED, data=result)
+
+    @staticmethod
+    def estimate_frequency(bias_list):
+        try:
+            epoch_second = ConfigParams.APPROXIMATELY_ALIGN_CONFIG_NEW_CONTENT["Second_PerEpoch"]
+            temp_freq = ConfigParams.APPROXIMATELY_ALIGN_CONFIG_NEW_CONTENT["TempFrequency"]
+
+            # 生成线性数据
+            X = linspace(0, len(bias_list), len(bias_list)).reshape(-1, 1)
+            y = bias_list
+
+            theilsen = TheilSenRegressor()
+            theilsen.fit(X, y)
+            slope = theilsen.coef_[0]
+            frequency = 1 - slope / epoch_second / temp_freq if slope != 0 else float('inf')
+
+            theilsen_y = theilsen.predict(X)
+
+            return Result().success(info=Constants.APPROXIMATELY_ESTIMATE_FREQUENCY_FINISHED,
+                                    data={"estimate_y": theilsen_y,
+                                          "frequency": frequency,
+                                          "slope": slope,
+                                          "intercept": theilsen.intercept_},
+                                          )
+        except Exception as e:
+            return Result().failure(
+                info=Constants.APPROXIMATELY_ESTIMATE_FREQUENCY_FAILURE + Constants.FAILURE_REASON[
+                    "Estimate_Frequency_Exception"] + "\n" + format_exc())
+
diff --git a/func/utils/ConfigParams.py b/func/utils/ConfigParams.py
index 254fa36..0b56844 100644
--- a/func/utils/ConfigParams.py
+++ b/func/utils/ConfigParams.py
@@ -85,6 +85,7 @@ class ConfigParams:
             "BandPassHigh": 0.7
         },
         "Multiple_Factor":100,
+        "Second_PerEpoch": 30,
         "CorrByEpoch":
             {
                 "window_epoch": 6
diff --git a/func/utils/Constants.py b/func/utils/Constants.py
index 717a91b..08b8006 100644
--- a/func/utils/Constants.py
+++ b/func/utils/Constants.py
@@ -182,6 +182,10 @@ class Constants:
     APPROXIMATELY_EPOCH_GET_FINISHED: str = "获取epoch完成"
     APPROXIMATELY_EPOCH_GET_FAILURE: str = "获取epoch失败"
 
+    APPROXIMATELY_ESTIMATE_FREQUENCY_CALCULATING: str = "正在估计采样率"
+    APPROXIMATELY_ESTIMATE_FREQUENCY_FINISHED: str = "估计采样率完成"
+    APPROXIMATELY_ESTIMATE_FREQUENCY_FAILURE: str = "估计采样率失败"
+
     # 预处理
     PREPROCESS_PLOT_LABEL_ORIGINAL_DATA: str = "Original_Data"
     PREPROCESS_PLOT_LABEL_PROCESSED_DATA: str = "Processed_Data"
diff --git a/ui/MainWindow/MainWindow_approximately_align.py b/ui/MainWindow/MainWindow_approximately_align.py
index c03e1c9..9368fe4 100644
--- a/ui/MainWindow/MainWindow_approximately_align.py
+++ b/ui/MainWindow/MainWindow_approximately_align.py
@@ -317,11 +317,12 @@ class Ui_MainWindow_approximately_align(object):
         self.groupBox_align_position.setObjectName(u"groupBox_align_position")
         self.gridLayout_2 = QGridLayout(self.groupBox_align_position)
         self.gridLayout_2.setObjectName(u"gridLayout_2")
-        self.radioButton_PABD = QRadioButton(self.groupBox_align_position)
-        self.radioButton_PABD.setObjectName(u"radioButton_PABD")
-        self.radioButton_PABD.setFont(font1)
+        self.pushButton_ChangeView = QPushButton(self.groupBox_align_position)
+        self.pushButton_ChangeView.setObjectName(u"pushButton_ChangeView")
+        self.pushButton_ChangeView.setMinimumSize(QSize(0, 30))
+        self.pushButton_ChangeView.setFont(font1)
 
-        self.gridLayout_2.addWidget(self.radioButton_PABD, 1, 2, 1, 1)
+        self.gridLayout_2.addWidget(self.pushButton_ChangeView, 0, 2, 1, 1)
 
         self.radioButton_NTHO = QRadioButton(self.groupBox_align_position)
         self.radioButton_NTHO.setObjectName(u"radioButton_NTHO")
@@ -329,12 +330,37 @@ class Ui_MainWindow_approximately_align(object):
 
         self.gridLayout_2.addWidget(self.radioButton_NTHO, 1, 1, 1, 1)
 
+        self.radioButton_PTHO = QRadioButton(self.groupBox_align_position)
+        self.radioButton_PTHO.setObjectName(u"radioButton_PTHO")
+        self.radioButton_PTHO.setFont(font1)
+
+        self.gridLayout_2.addWidget(self.radioButton_PTHO, 1, 0, 1, 1)
+
         self.radioButton_custom = QRadioButton(self.groupBox_align_position)
         self.radioButton_custom.setObjectName(u"radioButton_custom")
         self.radioButton_custom.setFont(font1)
 
         self.gridLayout_2.addWidget(self.radioButton_custom, 2, 1, 1, 1)
 
+        self.radioButton_PABD = QRadioButton(self.groupBox_align_position)
+        self.radioButton_PABD.setObjectName(u"radioButton_PABD")
+        self.radioButton_PABD.setFont(font1)
+
+        self.gridLayout_2.addWidget(self.radioButton_PABD, 1, 2, 1, 1)
+
+        self.pushButton_GetPos = QPushButton(self.groupBox_align_position)
+        self.pushButton_GetPos.setObjectName(u"pushButton_GetPos")
+        self.pushButton_GetPos.setMinimumSize(QSize(0, 30))
+        self.pushButton_GetPos.setFont(font1)
+
+        self.gridLayout_2.addWidget(self.pushButton_GetPos, 0, 0, 1, 1)
+
+        self.radioButton_NABD = QRadioButton(self.groupBox_align_position)
+        self.radioButton_NABD.setObjectName(u"radioButton_NABD")
+        self.radioButton_NABD.setFont(font1)
+
+        self.gridLayout_2.addWidget(self.radioButton_NABD, 2, 0, 1, 1)
+
         self.spinBox_custom = QSpinBox(self.groupBox_align_position)
         self.spinBox_custom.setObjectName(u"spinBox_custom")
         self.spinBox_custom.setMinimumSize(QSize(90, 0))
@@ -346,35 +372,38 @@ class Ui_MainWindow_approximately_align(object):
 
         self.gridLayout_2.addWidget(self.spinBox_custom, 2, 2, 1, 1)
 
-        self.radioButton_PTHO = QRadioButton(self.groupBox_align_position)
-        self.radioButton_PTHO.setObjectName(u"radioButton_PTHO")
-        self.radioButton_PTHO.setFont(font1)
-
-        self.gridLayout_2.addWidget(self.radioButton_PTHO, 1, 0, 1, 1)
-
-        self.radioButton_NABD = QRadioButton(self.groupBox_align_position)
-        self.radioButton_NABD.setObjectName(u"radioButton_NABD")
-        self.radioButton_NABD.setFont(font1)
-
-        self.gridLayout_2.addWidget(self.radioButton_NABD, 2, 0, 1, 1)
-
-        self.pushButton_GetPos = QPushButton(self.groupBox_align_position)
-        self.pushButton_GetPos.setObjectName(u"pushButton_GetPos")
-        self.pushButton_GetPos.setMinimumSize(QSize(0, 30))
-        self.pushButton_GetPos.setFont(font1)
-
-        self.gridLayout_2.addWidget(self.pushButton_GetPos, 0, 0, 1, 1)
-
-        self.pushButton_ChangeView = QPushButton(self.groupBox_align_position)
-        self.pushButton_ChangeView.setObjectName(u"pushButton_ChangeView")
-        self.pushButton_ChangeView.setMinimumSize(QSize(0, 30))
-        self.pushButton_ChangeView.setFont(font1)
-
-        self.gridLayout_2.addWidget(self.pushButton_ChangeView, 0, 2, 1, 1)
-
 
         self.verticalLayout.addWidget(self.groupBox_align_position)
 
+        self.groupBox_2 = QGroupBox(self.groupBox_left)
+        self.groupBox_2.setObjectName(u"groupBox_2")
+        self.groupBox_2.setMinimumSize(QSize(0, 0))
+        self.layoutWidget = QWidget(self.groupBox_2)
+        self.layoutWidget.setObjectName(u"layoutWidget")
+        self.layoutWidget.setGeometry(QRect(11, 18, 401, 41))
+        self.verticalLayout_3 = QVBoxLayout(self.layoutWidget)
+        self.verticalLayout_3.setObjectName(u"verticalLayout_3")
+        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
+        self.horizontalLayout_3 = QHBoxLayout()
+        self.horizontalLayout_3.setObjectName(u"horizontalLayout_3")
+        self.radioButton_freqTHO = QRadioButton(self.layoutWidget)
+        self.radioButton_freqTHO.setObjectName(u"radioButton_freqTHO")
+        self.radioButton_freqTHO.setFont(font1)
+
+        self.horizontalLayout_3.addWidget(self.radioButton_freqTHO)
+
+        self.radioButton_freqABD = QRadioButton(self.layoutWidget)
+        self.radioButton_freqABD.setObjectName(u"radioButton_freqABD")
+        self.radioButton_freqABD.setFont(font1)
+
+        self.horizontalLayout_3.addWidget(self.radioButton_freqABD)
+
+
+        self.verticalLayout_3.addLayout(self.horizontalLayout_3)
+
+
+        self.verticalLayout.addWidget(self.groupBox_2)
+
         self.groupBox_view_partially = QGroupBox(self.groupBox_left)
         self.groupBox_view_partially.setObjectName(u"groupBox_view_partially")
         self.verticalLayout_2 = QVBoxLayout(self.groupBox_view_partially)
@@ -456,10 +485,6 @@ class Ui_MainWindow_approximately_align(object):
 
         self.verticalLayout.addWidget(self.groupBox_view_partially)
 
-        self.verticalSpacer = QSpacerItem(20, 40, QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Expanding)
-
-        self.verticalLayout.addItem(self.verticalSpacer)
-
         self.pushButton_save = QPushButton(self.groupBox_left)
         self.pushButton_save.setObjectName(u"pushButton_save")
         sizePolicy.setHeightForWidth(self.pushButton_save.sizePolicy().hasHeightForWidth())
@@ -483,11 +508,12 @@ class Ui_MainWindow_approximately_align(object):
         self.verticalLayout.setStretch(0, 1)
         self.verticalLayout.setStretch(1, 1)
         self.verticalLayout.setStretch(2, 3)
-        self.verticalLayout.setStretch(4, 2)
-        self.verticalLayout.setStretch(5, 4)
-        self.verticalLayout.setStretch(6, 1)
+        self.verticalLayout.setStretch(3, 4)
+        self.verticalLayout.setStretch(4, 3)
+        self.verticalLayout.setStretch(5, 2)
+        self.verticalLayout.setStretch(6, 4)
         self.verticalLayout.setStretch(7, 1)
-        self.verticalLayout.setStretch(8, 4)
+        self.verticalLayout.setStretch(8, 6)
 
         self.gridLayout.addWidget(self.groupBox_left, 0, 0, 1, 1)
 
@@ -541,13 +567,16 @@ class Ui_MainWindow_approximately_align(object):
         self.label_8.setText(QCoreApplication.translate("MainWindow_approximately_align", u"PSG_Post\uff1a", None))
         self.pushButton_CutOff.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5e94\u7528", None))
         self.groupBox_align_position.setTitle(QCoreApplication.translate("MainWindow_approximately_align", u"\u5bf9\u9f50\u8d77\u59cb\u4f4d\u7f6e", None))
-        self.radioButton_PABD.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90093", None))
+        self.pushButton_ChangeView.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u4f30\u8ba1\u91c7\u6837\u7387", None))
         self.radioButton_NTHO.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90092", None))
-        self.radioButton_custom.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u81ea\u5b9a\u4e49", None))
         self.radioButton_PTHO.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90091", None))
-        self.radioButton_NABD.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90094", None))
+        self.radioButton_custom.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u81ea\u5b9a\u4e49", None))
+        self.radioButton_PABD.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90093", None))
         self.pushButton_GetPos.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u8ba1\u7b97\u5bf9\u9f50", None))
-        self.pushButton_ChangeView.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5207\u6362\u89c6\u56fe", None))
+        self.radioButton_NABD.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90094", None))
+        self.groupBox_2.setTitle(QCoreApplication.translate("MainWindow_approximately_align", u"\u91c7\u6837\u7387\u4f30\u8ba1", None))
+        self.radioButton_freqTHO.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90091", None))
+        self.radioButton_freqABD.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u5907\u90092", None))
         self.groupBox_view_partially.setTitle(QCoreApplication.translate("MainWindow_approximately_align", u"\u5c40\u90e8\u89c2\u6d4b", None))
         self.label_9.setText(QCoreApplication.translate("MainWindow_approximately_align", u"Epoch\uff1a", None))
         self.pushButton_JUMP.setText(QCoreApplication.translate("MainWindow_approximately_align", u"\u8df3\u8f6c", None))
diff --git a/ui/MainWindow/MainWindow_approximately_align.ui b/ui/MainWindow/MainWindow_approximately_align.ui
index daf2afc..bd9f6e9 100644
--- a/ui/MainWindow/MainWindow_approximately_align.ui
+++ b/ui/MainWindow/MainWindow_approximately_align.ui
@@ -25,7 +25,7 @@
       <property name="title">
        <string>数据粗同步</string>
       </property>
-      <layout class="QVBoxLayout" name="verticalLayout" stretch="1,1,3,0,2,4,1,1,4">
+      <layout class="QVBoxLayout" name="verticalLayout" stretch="1,1,3,4,3,2,4,1,6">
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_4">
          <item>
@@ -531,15 +531,21 @@
           <string>对齐起始位置</string>
          </property>
          <layout class="QGridLayout" name="gridLayout_2">
-          <item row="1" column="2">
-           <widget class="QRadioButton" name="radioButton_PABD">
+          <item row="0" column="2">
+           <widget class="QPushButton" name="pushButton_ChangeView">
+            <property name="minimumSize">
+             <size>
+              <width>0</width>
+              <height>30</height>
+             </size>
+            </property>
             <property name="font">
              <font>
               <pointsize>12</pointsize>
              </font>
             </property>
             <property name="text">
-             <string>备选3</string>
+             <string>估计采样率</string>
             </property>
            </widget>
           </item>
@@ -555,6 +561,18 @@
             </property>
            </widget>
           </item>
+          <item row="1" column="0">
+           <widget class="QRadioButton" name="radioButton_PTHO">
+            <property name="font">
+             <font>
+              <pointsize>12</pointsize>
+             </font>
+            </property>
+            <property name="text">
+             <string>备选1</string>
+            </property>
+           </widget>
+          </item>
           <item row="2" column="1">
            <widget class="QRadioButton" name="radioButton_custom">
             <property name="font">
@@ -567,6 +585,48 @@
             </property>
            </widget>
           </item>
+          <item row="1" column="2">
+           <widget class="QRadioButton" name="radioButton_PABD">
+            <property name="font">
+             <font>
+              <pointsize>12</pointsize>
+             </font>
+            </property>
+            <property name="text">
+             <string>备选3</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0">
+           <widget class="QPushButton" name="pushButton_GetPos">
+            <property name="minimumSize">
+             <size>
+              <width>0</width>
+              <height>30</height>
+             </size>
+            </property>
+            <property name="font">
+             <font>
+              <pointsize>12</pointsize>
+             </font>
+            </property>
+            <property name="text">
+             <string>计算对齐</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="0">
+           <widget class="QRadioButton" name="radioButton_NABD">
+            <property name="font">
+             <font>
+              <pointsize>12</pointsize>
+             </font>
+            </property>
+            <property name="text">
+             <string>备选4</string>
+            </property>
+           </widget>
+          </item>
           <item row="2" column="2">
            <widget class="QSpinBox" name="spinBox_custom">
             <property name="minimumSize">
@@ -594,69 +654,62 @@
             </property>
            </widget>
           </item>
-          <item row="1" column="0">
-           <widget class="QRadioButton" name="radioButton_PTHO">
-            <property name="font">
-             <font>
-              <pointsize>12</pointsize>
-             </font>
-            </property>
-            <property name="text">
-             <string>备选1</string>
-            </property>
-           </widget>
-          </item>
-          <item row="2" column="0">
-           <widget class="QRadioButton" name="radioButton_NABD">
-            <property name="font">
-             <font>
-              <pointsize>12</pointsize>
-             </font>
-            </property>
-            <property name="text">
-             <string>备选4</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="0">
-           <widget class="QPushButton" name="pushButton_GetPos">
-            <property name="minimumSize">
-             <size>
-              <width>0</width>
-              <height>30</height>
-             </size>
-            </property>
-            <property name="font">
-             <font>
-              <pointsize>12</pointsize>
-             </font>
-            </property>
-            <property name="text">
-             <string>计算对齐</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="2">
-           <widget class="QPushButton" name="pushButton_ChangeView">
-            <property name="minimumSize">
-             <size>
-              <width>0</width>
-              <height>30</height>
-             </size>
-            </property>
-            <property name="font">
-             <font>
-              <pointsize>12</pointsize>
-             </font>
-            </property>
-            <property name="text">
-             <string>切换视图</string>
-            </property>
-           </widget>
-          </item>
          </layout>
         </widget>
        </item>
+       <item>
+        <widget class="QGroupBox" name="groupBox_2">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>0</height>
+          </size>
+         </property>
+         <property name="title">
+          <string>采样率估计</string>
+         </property>
+         <widget class="QWidget" name="layoutWidget">
+          <property name="geometry">
+           <rect>
+            <x>11</x>
+            <y>18</y>
+            <width>401</width>
+            <height>41</height>
+           </rect>
+          </property>
+          <layout class="QVBoxLayout" name="verticalLayout_3">
+           <item>
+            <layout class="QHBoxLayout" name="horizontalLayout_3">
+             <item>
+              <widget class="QRadioButton" name="radioButton_freqTHO">
+               <property name="font">
+                <font>
+                 <pointsize>12</pointsize>
+                </font>
+               </property>
+               <property name="text">
+                <string>备选1</string>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QRadioButton" name="radioButton_freqABD">
+               <property name="font">
+                <font>
+                 <pointsize>12</pointsize>
+                </font>
+               </property>
+               <property name="text">
+                <string>备选2</string>
+               </property>
+              </widget>
+             </item>
+            </layout>
+           </item>
+          </layout>
+         </widget>
+        </widget>
+       </item>
        <item>
         <widget class="QGroupBox" name="groupBox_view_partially">
          <property name="title">
@@ -807,19 +860,6 @@
          </layout>
         </widget>
        </item>
-       <item>
-        <spacer name="verticalSpacer">
-         <property name="orientation">
-          <enum>Qt::Orientation::Vertical</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>20</width>
-           <height>40</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
        <item>
         <widget class="QPushButton" name="pushButton_save">
          <property name="sizePolicy">