Fig. 2From: Adaptive reconstruction for azimuth signal of multichannel HRWS SAR imaging systemDifferent azimuth sampling schemes for multichannel SAR regarding the positions of EPCs. a Uniform-sampling, κ=1. b Over-sampling, κ>1. c Under-sampling, κ<1. Here, the channel number is 3, and d1=0. Besides, the triangles and circles stand for the sampling positions in different pulsesBack to article page