A ECG Signal Compression and Recognition Method Based on Singular Value Decomposition
A singular value decomposition and electrocardiographic signal technology, applied in the field of biomedical information processing, can solve the problems of reduced transmission efficiency, high compression rate, large amount of ECG data, etc., and achieve the effect of improving compression rate and high accuracy rate
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[0030] This embodiment provides a method for compressing and identifying ECG signals based on singular value decomposition. The flow chart is as follows figure 1 shown, including the following steps:
[0031] S1. Training classifier model:
[0032] The R-wave detection and cardiac beat interception preprocessing are performed on the ECG signal data provided by the MIT-BIH database to obtain the experimental data set; specifically, the 40th-order FIR band-pass filter with a frequency of 15-25 Hz is firstly passed, and the frequency is roughly The frequency band where the QRS complex is located. In order to make the waveform mode more simple, "double slope" processing is performed. Then through low-pass filtering and sliding window integration to eliminate clutter, and finally use threshold processing to complete R-wave detection. Then, taking the detected R wave as the reference point, the first 100 sample points and the last 150 sample points of the reference point are used...
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