RANGE AMBIGUITY DISTRIBUTION CHARACTER- ISTIC OF SPACEBORNE SAR AND ITS DESIGN CONSIDERATION
星载SAR距离模糊分布规律及其改进设计

A new approach is proposed which can satisfy the range ambiguity requirement while keep the antenna width not to be enlarged and get the high quality image also. Here the chirp slope of the transmitted linear frequency modulated pulses is reversed alternately. Therefore, during the range compression significant portion of the ambiguous return is suppressed due to the mismatching with the signal reference function. The suggested method provides significant improvement in RAR and can be utilized in attaining wider swath.