Target detection technology based on quantitative analysis feature

Broadband high-resolution radar target echo is irradiated with multiple scattering centers. Echo distribute on each target range cell expansion. Signal is weak and decentralized energy distribution more, The noise power and the distribution of each unit are essentially the same distance. This makes the unit at the same distance, lower SNR, the effective signal detection becoming more difficult. Therefore, we must find ways to distinguish between useful signal and noise characteristics. By feature selection to find more efficient, lower dimension, more direct quality characteristics distinguishing the signal and noise. Therefore, feature extraction and feature selection are the most important issue facing the wideband radar signal detection and feature extraction. Selection is the key link which directly affects the performance of the merits of the broadband signal detection.