计算机科学 ›› 2016, Vol. 43 ›› Issue (10): 120-124.doi: 10.11896/j.issn.1002-137X.2016.10.022
胡婧,边东明,谢智东,李永强
HU Jing, BIAN Dong-ming, XIE Zhi-dong and LI Yong-qiang
摘要: 针对频分多路(FDMA)卫星通信系统中转发器的信号数量、模式多变,利用单一阈值难以实现多个同频窄带干扰同时检测的问题,提出了一种基于形态学处理的窄带干扰检测方法。该方法将信号的频谱视为一维灰度图像,结合改进的图形图像处理领域的形态学梯度滤波算法,通过检测干扰的边缘梯度跳变值来实现干扰信号的定位。仿真结果表明,当监测频宽内多个不同参数的信号都存在窄带干扰时,所提方法不受噪声基底变化的影响,运算量小,复杂度低,适用于卫星通信系统的实时频谱监测。
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