摘要
为了研究不同类型干扰信号对特定通信链路的干扰效果,应用ADS软件,通过调用多种DSP电路功能模块,在成功搭建PM调制通信链路的基础上,通过注入多种类型干扰信号,研究了基于特定通信链路误码率随不同类型干扰信号的信干比变化情况,以及当干扰信号采用不同码速率时,对通信链路误码率的影响,并针对仿真结果进行了理论分析。通过统计计算,结合通信链路各个关键节点处信号频谱的分布变化,得出信号解调过程中的频谱搬移与杂散信号的伴随出现,低通滤波器对带外信号的强抑制作用,以及采用较高码速率的通信干扰信号,其频谱扩展导致干扰效果不佳等结论。该研究可以进一步丰富ADS软件的应用场景,仿真结论可以指导通信干扰策略的制定。
In order to study the interference effects of different interference signals on specific communication link,ADS(advanced design system)software is used to establish the PM modulation communication link successfully by calling various DSP circuit function modules.On this basis,the variation of BER(bit error ratio)based on specific communication link with the SIR(signal to interference ratio)of different types of interference signals is researched by injecting various types of interference signals,and the inpact of interference signals with different code rates on the BER of the communication link.The simulation results are analyzed theoretically.In combination of the distribution changing of signal spectrum at key nodes of communication link,these conclusions:spectrum shifting is accompanied by the appearing of spurious signals in the process of signal demodulation,low pass filter has strong suppression effect on out-of-band-signals,communication interference signal with higher code rate has poor interference effects due to its spectrum spreading,etc.are obtained by means of statistical calculation.The research in this paper can further enrich the application scenarios of ADS software,and the simulation results can guide the formulation of communication interference strategies.
作者
郝晓军
李永成
李廷鹏
HAO Xiaojun;LI Yongcheng;LI Tingpeng(State Key Laboratory of Complex Electronmagnetic Environment Effect on Electronics&Information System,Luoyang 471003,China)
出处
《现代电子技术》
2023年第3期35-38,共4页
Modern Electronics Technique
基金
动态博弈对抗下的认知抗干扰决策方法研究(CEMEE2022Z0207A)。
