针对频率-码型联合捷变雷达信号脉压后存在的距离维旁瓣过高问题,采用基于模糊函数模型下的积分旁瓣(ISL)作为衡量波形优化效果的量化指标,推导了频率-码型联合捷变雷达信号及其模糊函数表达式,建立了以最小化ISL 为准则的波形优化设计模型,并采用交替方向乘子法对模型进行求解。仿真结果表明该算法在实现波形优化的同时,在优化效果及优化效率上相比于遗传算法得到进一步提高。

In this paper, the high distance dimension sidelobe problem of frequency-code joint agile radar signal is studied after pluse compression. The integral sidelobe based on ambiguity function is used as the quantitative indicator of waveform optimization. Furthermore, the expression of the frequency-code joint agile radar signal and the ambiguity function of signal are derived. Then the waveform optimization design model based on minimizing ISL is established, and the alternating direction method of multipliers is applied to solve this model. Finally, the simulation results demonstrate the outperformance of our proposed methods in minimizing distance dimension sidelobe after pluse compression. Meanwhile, the optimization effect and efficiency compared with genetic algorithm are further improved.

TN958

上海航天基金资助项目(SAST2018-077);航空科学基金资助项目(2017052015, 20182007001)