以声表面波延迟线为核心的距离欺骗、多重回答欺骗、噪声欺骗技术是对雷达信号的综合干扰手段之一。
With the core of SAW delay line, deception jamming of distance, multiple reply and noise has become one of the comprehensive interference methods against radar signal.
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。
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.
梳状换能器可看成若干叉指单元电端并联，声端首尾串联而成的网络，采用单向结构可降低采用这种结构的声表面波延迟线的损耗。
The comb transducer can be considered as the network of the parallel connection of some units of IDT electrical ports and the series connection of their acoustic ports.
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