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针对某准连续波侦察雷达的特点，提出了在零中频上实现主杂波对消的方案，研制了数字式零中频杂波对消器。该对消器采用三脉冲对消方案，脉冲重复频率可编程。实测的对消器特性曲线与理论设计曲线相吻合。
Aimed at the characteristics of a quasi-CWS radar, a scheme to cancel the main clutter at zero IF was proposed and a digital zero-IF clutter canceller was developed. The cancellation device uses three pulse cancellation scheme, pulse repetition frequency programmable. The measured canceller characteristic curves coincide with the theoretical design curves.