Frequency Hopping Signal Detection over the Short-Wave Channel

被引：0
|
作者：
Li S. [1 ]
Li T.-Y. [1 ]
机构：
[1] College of Information Engineering, Information Engineering University, Zhengzhou, 450001, Henan
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2019年 / 47卷 / 03期
关键词：
Complex channel; Frequency-hopping signal detection; Principal component analysis;
D O I：
10.3969/j.issn.0372-2112.2019.03.015
中图分类号：
学科分类号：
摘要：
A detection algorithm based on energy feature extraction is proposed for the detection of frequency-hopping signals in complex environments.The algorithm can accurately determine the existence of frequency hopping signal in the channel.Firstly, the receiving data is projected into the energy domain to be whitened, and the color noise in the receiving signal is suppressed.Then, the time-domain continuous signal in the channel is extracted through the energy distribution feature to remove the short-term burst signal in the receiving signal.Finally, the channel processing is used to decompose the receiving signal into each subchannel and detect the existence of frequency-hopping signal by means of short-term energy cancellation.The statistical properties of the algorithm, the false alarm probability and the detection probability are theoretically derived, and the experimental simulation is carried out to verify the effectiveness of the algorithm. © 2019, Chinese Institute of Electronics. All right reserved.
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页码：623 / 629
页数：6
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