Reconstruction of Passive Radar Reference Signal Based on DTMB

Digital terrestrial multimedia broadcasting (DTMB) passive radar obtains target information by eliminating correlation between reference signal and target echo signal. Reference signal reconstruction is a key technology of passive radar. This paper introduces the key algorithms in the process of reference signal reconstruction. On the premise of ensuring the reconstruction accuracy, DOMP-MP algorithm is used to reduce the computational complexity. The reconstructed reference signal and the target echo are processed by 2D Cross-correlation processing to obtain the target information. The simulation results demonstrate that the algorithm is verified.