Applying Compression Recognition Method to Achieve Superresolution of Echo Signals

The possibility of using the method of compressive sensing (CS) to increase the resolution of echo signals is investigated. For comparison with the CS method, the maximum entropy (ME) method used in ultrasonic testing to achieve superresolution was also considered. In model experiments, the possibility of reconstructing images of reflectors with superresolution has been demonstrated making it possible to increase the accuracy of measuring reflectors and reduce the level of pattern noise. In order to reduce the noise level, it is proposed to use a coherence factor (CF) when combining partial images.