干扰信号检测技术研究

Research on Interference Signal Detection Technology

现代无线通信系统容易受到各种干扰,要想对一个通信系统的抗干扰性能进行研究,首先要对干扰信号进行准确的检测。文章对现代通信系统可能面临的各种干扰进行了研究,分析了不同干扰信号的特点及其对通信系统所造成的影响。在此基础上研究了基于时域及频域的能量检测算法、连续均值消除(CME)算法、前向连续均值消除(FCME)算法、以及双门限干扰检测算法在干扰信号检测中的应用,分析比较了各种算法的特点,为下一步采取有效的抗干扰措施打下基础。

Modem wireless communication systems are susceptible to jamming. To study the anti-jamming performance of a communication system, it is necessary to detect the jamming accurately. This paper studies the various jamming that modem communication system may face, and analyzes the characteristics of different jamming and their influence on the communication system. On this basis, the paper studies the four different algorithms based on time domain and frequency domain, the energy detection algorithm based on time domain and frequency domain, the consecutive mean excision （CME） algorithm, the forward consecutive mean excision （FCME） algorithm, and the double threshold interference detection algorithm, in the application of the interference signal detection, and compares the characteristics of various algorithms, and lays the foundation for further tak- ing effective anti-jamming measures.