Effects of SAR Sounding Signal Parameters on ERS Measurement Quality.
The sounding signal effects of a synthesized aperture radar (SAR) or more exactly the integrated side lobe level effects on the measurement quality of extended underlying surface characteristics using LFM, PSK/CSK signals are reviewed. It is shown that the high integral level of PSK signal lobes uniformly distributed over the range makes it impossible to reliably determine the characteristics of low-reflectivity surfaces located in the vicinity of bright extended objects.