Patent ID: 8358233

Claim:
A method for analyzing a radar signal using CLEAN to identify an undetected target in sidelobes of a detected target, said method comprising: obtaining system impulse response data of a waveform for a point target having a signal data vector expressed as y={tilde over (W)} H c+n, where y represents said signal data vector, {tilde over (W)} represents a convolution operation, superscript H is a conjugate transpose operation, c is a target amplitude vector, and n is an additive white Gaussian noise vector; and estimating said target amplitude vector c as ĉ= ( {tilde over (W)}{tilde over (W)} H ) −1 {tilde over (W)}y, where ĉ is a minimum variance unbiased estimate vector of said target amplitude vector c; and applying a CLEAN Deconvolver to remove the detected target from said signal data vector y as c ={tilde over (W)}{tilde over (W)} H c − , where c is an estimate amplitude vector absent said detected target and c − represents an amplitude vector of the undetected target.