Digital channelization technology is often used for broadband electromagnetic signal reception.When its analysis fil-ter banks and comprehensive filter banks have precise reconstruction characteristics,accurate reconstruction of the received signal can be achieved.For the electromagnetic spectrum recognition problem in the field of complex electromagnetic environment percep-tion,it is necessary to accurately restore the electromagnetic signal received by the receiver and perform spectrum recognition based on the accurately restored signal.The article proposes an intelligent electromagnetic spectrum recognition technology based on pre-cise reconstruction of digital channelization.Firstly,a digital channelized receiver structure that can achieve precise signal reconstruc-tion is constructed.Then,wavelet analysis is used to construct a time-frequency waterfall diagram of the signal,and artificial intelli-gence processing is performed based on this graph to achieve electromagnetic spectrum recognition.Finally,simulation results are provided.The simulation results in the article demonstrate the correctness and effectiveness of the method.
关键词
数字信道化/精确重构/智能电磁频谱识别
Key words
Digital channelization/Accurate Reconstruction/Intelligent Electromagnetic Recognition
维普
万方数据