Comments on a patented solution of multipath propagation effects
Abstract
Two patents concerning a signal processing method for correcting multipath propagation effects in monopulse tracking radars are discussed. An extra elevation bundle is used to obtain the information required for signal processing. The mathematical analysis passes over a number of inherent weak points. The extra elevation channel only gives antenna diagram information at high signal to noise ratios. The signal processing method is not always reliable during a radar track. It is only applicable for specular reflection and not for diffuse reflection. For small angular differences between direct path and multipath, the signal to noise ratio has to be large, which poses problems for small targets at relatively large distances.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 November 1982
 Bibcode:
 1982STIN...8333034V
 Keywords:

 Multipath Transmission;
 Patents;
 Radar Tracking;
 Signal Processing;
 Mathematical Models;
 Monopulse Radar;
 Signal To Noise Ratios;
 Specular Reflection;
 Communications and Radar