By setting the DDS's offset phase at given time, a single DDS can generate multi-target phase-coherence signals including LFM and general pulse for evaluated radar.

通过在特定时刻对DDS生成的信号进行补相，可以使单dds同时生成多个目标的与被测雷达全相参的常规脉冲和线性调频回波信号。

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The input and output carrier of SAW delay line is constant to maintain the coherence of the pulse, which can be well applied for deception jamming in PD radar.

而声表面波延迟线输入输出载频不变，并能始终保持脉冲的相参性，用于PD雷达欺骗干扰，是实用的方案。

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