这是针对pulse-transit-time的软件包
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@@ -3,9 +3,9 @@ def global_var_init():
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# 设置周期,采样频率,记录名称
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global cycle, fs_ecg, fs_ppg, record_name, record_name_csv
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cycle = 400 # 此处限制的是生成txt文件中的周期,而预处理时会处理全部周期
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record_name = "s22_sit"
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record_name_csv = "s22_sit"
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cycle = 370 # 此处限制的是生成txt文件中的周期,而预处理时会处理全部周期
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record_name = "s1_sit"
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record_name_csv = "s1_sit"
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fs_ecg = 500
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fs_ppg = 500
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@@ -66,7 +66,6 @@ def processing():
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# 加载原始PPG信号
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signal = load_data(data_path = data_path, fs=fs_ppg, use_tk=False)
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signal.v = -signal.v[:, 3] # 可用-1将信号取反便于查看,后面是列的索引位置(信道),可调整
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# 创建时间向量
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@@ -88,6 +87,7 @@ def processing():
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fiducials_df = pd.DataFrame(fiducials)
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# 提取行的数据(注意:Pandas的索引是从0开始的)
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rows_to_extract = fiducials_df.iloc[1:-1] # 提取第1到最后1行
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# 归一化
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signal.ppg = normalize(signal.ppg)
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signal.ppg = np.array(signal.ppg, dtype=np.float64) # 强制转换
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