一种复杂波形信号产生器的设计与实现

介绍了一种复杂波形信号产生器的设计与实现,采用高速直接数字频率合成器产生各种复杂波形信号,并且通过微波宽带倍频器对DDS产生的复杂波形信号进行倍频,从而实现对DDS输出信号带宽的扩展,最终产生各种宽带复杂波形信号。文中介绍了设计方案与实现方法,并研制出工程样机。最终设计的复杂波形信号产生器能够实现线性调频、非线性调频、相位编码等多种复杂波形信号,输出信号带宽最高可达1 GHz。

Design and Realization of a Complex Waveform Signal Generator

The design and realization of the complex waveform signal generator are introduced in this paper.The high-speed direct digital synthesizer is used to generate various complex waveform signals,and the frequency multiplication will be performed for the complex waveform signals generated by the DDS with the MW broad band frequency multiplier to achieve the expansion of the DDS output signal bandwidth to generate the complex waveform signals with various bandwidths.The designed complex waveform signal generator is capable of multiple complex waveform signals such as linear frequency modulation signal,nonlinear frequency modulation signal and phase encode signal,with an output signal bandwidth up to 1 GHz.