基于最小干扰电平的短波自适应实时选频的研究  

Adaptive Real-Time Frequency Selection in HF Channel Based on Minimum Interference

作　　者：郭锐[1] 毕文斌[2] 张捷[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]中国舰船研究院,北京100085

出　　处：《计算机测量与控制》2006年第9期1244-1246,共3页Computer Measurement &Control

摘　　要：通过对短波信道实际采集数据的统计分析,验证了于扰信道条件下频率分布具有“多孔性”和各频点干扰电平具有“瞬时”稳定性,提出基于干扰电平最小的短波自适应实时选频算法;该算法根据信道的干扰情况自动调节选频门限,能够更精确地反映短波信道干扰情况的实时特性,选频精确度更高,具有抗“突发性”干扰能力;最后通过实验仿真证明此选频算法是正确的、可行的。The ＂multi- gap＂ and ＂transient-stability＂ feature of HF Channel had been verified by analyzing data captured in HF channel. Then an adaptive real-time frequency selection algorithm based on minimum interference is presented. The algorithm can automatically adjust the threshold of the frequency-selection depending on the channel interference, and can reflect the real-time characteristic of HF channel. So the algorithm has high accuracy of frequency selection and strong ability of anti-interference. Results of experiments and simulation proved the algorithm is accurate and feasible.

关 键 词：实时选频 短波信道 自适应选频算法 

分 类 号：TN97[电子电信—信号与信息处理]