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Performance analysis of bit error rate of data link system under pulse LFM interference in time-varying rayleigh channel
Wireless Networks ( IF 2.659 ) Pub Date : 2020-01-14 , DOI: 10.1007/s11276-020-02251-0
Kui Zhao, Fangmin He, Jin Meng, Hao Wu, Lei Zhang

In such mobile platforms as ships and aircraft, the detection and reconnaissance devices are near to the communication facilities. When working at the same time, they will create interference or jamming themselves. Especially, the high-power radar equipment tend to cause a high bit error rate (BER) in the data link system (DLS), with the result that the DLS cannot operate normally. For this reason, this paper makes a study of the BER performance of the DLS under the pulse linear frequency modulation (LFM) interference in the time-varying Rayleigh channel. In view of the the time-varying characteristics of channel in the practical conditions, the interference channel is modeled as a time-varying Rayleigh fading channel and the formula of BER is derived. Through simulation, the theoretical deduction is proved to be correct. This is of much importance to analyzing the variation of BER performance with the pulse width, power and doppler frequency shift under the pulse LFM interference.
更新日期:2020-01-14

 

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