摘要
鉴于电台指纹特征体现个体之间差异,在相位噪声指纹模型下,提出在航空信道下双谱的信息维数特征的提取方法,根据最小距离判决实现通信电台个体识别.最后对BPSK调制信号、OQPSK调制信号和MSK调制信号进行了个体识别仿真.仿真结果表明,信噪比大于5d B时,3种调制信号识别率均大于70%,从而验证了该方法的有效性.
In view of the differences reflected in the individual minutia feature of the communication transmitters and under the model of phase noise minutia, this paper presents an extraction method of information dimension characteristics of bi-spectrum in the aeronautical channel, and implements the individual identification of communication transmitters by the minimum distance decision-making, and finally, performs on the individual identification simulation of BPSK, OQPSK and MSK modulation signals. Simulation results show that the identification rates of those three types of modulation signals are all above than 70% when the SNR is greater than 5 dB, which proves the effectiveness of this proposed method.
出处
《空军预警学院学报》
2016年第1期21-25,共5页
Journal of Air Force Early Warning Academy
关键词
航空信道
相位噪声
双谱
信息维数
电台个体识别
aeronautical channel
phase noise
bi-spectrum
information dimension
individual identification of communication transmitters
