Time Reversal Preprocessing Method Based on Denoising and Energy Detection

Time reversal (TR) is an effective method to solve the multipath effect and energy dispersion of ultra-wideband signals by retransmitting the received signals to the scattering environment to achieve spatial-time focusing. The TR transmitted signal needs to be extracted from the received echo. However, in the case of a low signal-to-noise ratio (SNR), it is difficult to determine the position of t...