空空导弹雷达通信一体化波形设计及通信链路分析

Integrated radar-communication waveform design and communication link analysis for air-to-air missile

相控阵制导是新型空空导弹的研究热点之一,提出了一种适合于该体制下的雷达通信一体化波形,利用特征值分解算法减少通信波形与雷达波形的互相关性,并详细分析了现有技术水平下的通信收发链路性能,证实在多通道ADBF算法的支持下,30 km作用距离时典型通信速率可达2 Mb/s以上,且仍有约10 dB的比特信噪比余量。利用计算机仿真完成了一体化波形的调制解调和误比特率性能测试,验证其性能与FSK调制基本相当,整个设计具有很好的通用性,亦可用于其他战术导弹的雷达通信复合化设计。

Phase array antenna guidance has become a hot topic for new generation air-to-air missile.In this paper,to exert its performance advantages,a waveform strategy for integration of radar and communication was presented based on eigenvalue decomposition algorithms,so that the correlation between radar and communication waveforms was decreased greatly.The communication link performance was also analyzed according to existing technology level in detail.Analysis results indicated that with the support of ADBF algorithm,communication rate can attain 2 Mb/s under 30 km operating distance,and the normalized EbN0 margin was about 10 dB.Whole radar/communication combined waveform’s modulating/demodulating BER performance was also implemented in simulated environment,which proved that the new strategy can attain equivalent capability of FSK generally.Besides,good compatibility of presented design makes it appealing in others radar/communication combined system of tactical missile.