摘要
针对FSK信号具有多个离散频点的特点,提出了利用梳状谱射频噪声干扰FSK信号的方法。给出了梳状谱射频噪声的详细定义,并以2FSK信号模型为例,在接收机完成同步的条件下,推导了其影响接收机解调的误码率公式。理论分析证明,梳状谱射频噪声对FSK信号的接收和解调具有显著干扰效果。通过与传统单频干扰比较,说明梳状谱射频噪声干扰在干扰机功率有限而信号功率较大的情况下有更好的干扰效果。仿真实验验证了理论分析的正确性和实际应用的可行性。
With the help of the several discrete frequency spots of FSK signal,the RF noise with the pectinate spectrum is proposed to jam FSK signals.And the detailed definition is done of the proposed jamming signal.The error rate formula of its effect on the communication receiver is deduced under the condition that the timing synchronization has been completed,in the case of 2FSK model.The theoretical analysis proves that the RF signal with the pectinate spectrum has the remarkable jamming effect on the reception and demodulation of communication signal.The conclusion is obtained that the RF noise with the pectinate spectrum has better jamming effect in comparison with the single-frequency jamming when the jammer is limited in power and the signal has larger power.And the simulation proves the correctness of theoretical analysis and the feasibility of actual application.
出处
《电子信息对抗技术》
2010年第4期21-25,共5页
Electronic Information Warfare Technology
关键词
电子对抗
通信干扰
高斯噪声
通信系统
electronic countermeasures
communication jamming
Gaussian noise
communication system
