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象高分辨力雷达中所采用的那种大带宽相干波形可以由一个数字波形产生器后接单边带调制器和倍频器来精确产生。为了充分利用高分辨力波形,必须采用加权来降低旁瓣,但该信号应有足够小的误差,以保证所要求的旁瓣电平。本文分析确定性误差和随机性误差对可达到的距离旁瓣电平的影响。
The large bandwidth coherent waveform used in high-resolution radars can be accurately generated by a digital waveform generator followed by a single-sideband modulator and multiplier. In order to take full advantage of the high-resolution waveform, side lobes must be weighted down, but the signal should be small enough to ensure the required sidelobe level. This article analyzes the effect of deterministic and random errors on the achievable range sidelobe level.