A Method of Ultrasonic Signal Processing Based on Autoencoder
An ultrasonic signal and self-encoder technology, which is applied in the direction of instruments, code conversion, calculation, etc., can solve the problems of poor compatibility of signal noise reduction and screening, high calculation cost, and large amount of calculation, so as to avoid subjectivity and one-sidedness and improve accuracy. The effect of filtering out the influence of random noise on the signal
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[0048] The invention provides an ultrasonic signal processing method based on an autoencoder. The autoencoder (Autoencoder) built by the neural network compresses and decompresses the ultrasonic A-scan signal. The relevant weight and bias variables of the function, and use this as the noise reduction
[0049] S1. Preprocessing of ultrasonic signals;
[0050] Ultrasonic A-scan signal refers to the original signal received by the ultrasonic probe, with the echo sound path and amplitude as the horizontal and vertical axes respectively. The output format of a single A-scan signal is generally a one-dimensional array, in which each element represents the echo intensity at different sound paths.
[0051] S101. Firstly, the dimension of the above-mentioned one-dimensional array is increased. In order to make the amplitude completely distributed in the two-dimensional array, firstly, each element of the one-dimensional array is rounded. In addition, the row number row of the two-dimen...
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