基于弹载场景的MSK-LFM雷达通信一体化波形优化

Waveform Optimization of MSK-LFM Radar Communication Integration Basedon Missile Borne Scene

摘要:

为满足弹载设备小型化的需求,提出了一种雷达通信一体化波形实现方法。该方法将线性调频(LFM)信号和最小频移键控(MSK)信号进行融合,生成MSK-LFM 一体化信号,并针对一体化信号在大多普勒频偏条件下通信误码率急剧增大的问题,采用二次线性迭代估计算法进行优化。仿真结果表明:采用该一体化信号可以同时实现雷达和通信功能;二次线性迭代估计算法能够有效消除多普勒效应对一体化信号的影响,降低系统误码率。

Abstract:

In order to meet the requirement ofminiaturization of missile borne .equipment, the waveform optimization method of radar communication integration is proposed, In this method, the linear frequency modulation (LFM) signal and the minimumfrequency shift keying (MSK) signal are fused to generate MSK-LFM integrated signal.Aiming at the problem that the communication error rate of the integrated signal increasingsharply with large Doppler frequency offset, the quadratic linear iterative estimationalgorithm is used to optimize the integrated signal, The simulation results show that theintegration signal can realize the functions of radar and communication simultaneously, Thequadratic linear iterative estimation algorithm can effectively eliminate the influence orDoppler freqguency offset on the integration signal and reduce the communication error rate.