基于Chirp信号的雷达通信一体化研究

为了减少电子战平台的体积和电磁干扰,一种有效的途径就是实现雷达与通信一体化,因此,随着共事孔径和软件无线电的发展,雷达通信一体化技术已经引起了越来越多的关注.基于信号能量共享的原则,提出了一个基于线性调频信号的雷达通信一体化系统,其采用同调频率不同初始频率的Chirp信号,可在不影响雷达性能的前提下,实现二进制数据的传送,此特殊共用信号的设计使得通信信号隐藏在雷达信号之中,增强了系统的抗干扰能力和信号的低截获率.同时对该系统的初始频率分辨能力和解调性能进行了分析,通过系统仿真表明,此系统具有很好的低误码率和高稳健性特性.

Integrated Radar and Communication Based on Chirp

Radar and communication integrated on the electronic war platform is an effective method to reduce the volume and electromagnetic interference.With the rise of share-aperture concepts and software-defined radio techniques,the technology of integrating communication functions with radar systems has received considerable attention in recent years.Following the principle of signal sharing,the system of integrated radar and communication is presented based on LFM signal,and the method adopts Chirp signal under same frequency modulation rate and different initial frequency.Under the premise of not affecting the radar performance,the system can transmit binary information excellently.The design of special signal make the communication signal ensconce in the radar signal.The method enhances the anti-jamming capability of the system and the low-intercept probability of signal.Finally,the resolution ability of initial frequency and the capability of demodulation of the integrated system are analyzed.The simulation result shows that the proposed integrated system has lower SER and higher robustness.