Direct digital synthesis (DDS) is an all digital frequency synthesis technique. Because of its special theory and construction, it has many kinds of modulation capability.

直接数字式频率合成(DDS)技术是一种全数字频率合成技术，其特殊的原理和结构使它具有多种调制能力。

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This paper discusses the results of system simulation of linear frequency modulation pulse-compression radar and draws some conclusion on its capability of counter-jamming.

通过噪声干扰、噪声调幅干扰和移频干扰对脉冲压缩雷达的干扰仿真得出了一些有意义的结论。

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