clutter and direct signal cancellation in analog tv-based passive radar

in this paper, we deal with the problem of clutter and direct signal (c&ds;) cancelation in the target detection of tv-based passive radars. we first consider the target detection using the conventional fft method. we see that for increasing the maximum range of passive radar, we must cancel the c&ds; from the received signal. hence, we investigate some important methods for c&ds; cancelation in the tv-based passive radars using some evaluation criteria such as convergence speed, the ability for cancelation of undesired echoes, the effect on the target peak, and the computational complexity. afterward, we propose a new algorithm for c&ds; cancelation based on the adaptive filter bank. our investigations show that the proposed algorithm with much less complexity, behaves close to the eca.