基于噪声调相干扰寄生扩频的隐蔽信息传输

发布时间：2018-06-02 15:30

  本文选题：噪声调相干扰 + 寄生扩频　； 参考：《火力与指挥控制》2017年11期

【摘要】：在常见的各种信息隐蔽传输方法中,宿主载体大多集中于图像、音频、视频等各类多媒体信源,而通过射频信号作为载体来实施隐蔽信息传输的技术手段十分缺乏。针对这一情况,提出了一种基于噪声调相干扰寄生扩频的隐蔽信息传输方法。在干扰机对雷达、通信等目标对象发射噪声压制干扰信号的同时,将需要传输的信息寄生调制于噪声干扰的相位分量,形成一种类扩频传输信号,并有效隐藏于大功率干扰信号之中实现传输。在接收端通过解扩处理而恢复出隐藏的调制分量,最后解调出其中所隐蔽承载的数字比特流。仿真试验结果显示了该方法的可行性与有效性,这对于电子对抗设备的综合一体化应用和隐蔽通信的实施提供了新的技术途径。
[Abstract]:Among the common information covert transmission methods, the host carrier is mostly concentrated in the image, audio, video and other multimedia sources, but the technical means of carrying out the covert information transmission through the radio frequency signal as the carrier is very lacking. In order to solve this problem, a method of covert information transmission based on noise-modulated interference parasitic spread spectrum is proposed. While the jammer transmits the noise suppression jamming signal to the target object such as radar and communication, the information to be transmitted is parasitized and modulated on the phase component of the noise interference to form a kind of spread spectrum transmission signal. And effectively hidden in the high-power interference signal to achieve transmission. The hidden modulation component is recovered by despreading at the receiving end and the hidden digital bit stream is demodulated. The simulation results show that the method is feasible and effective, which provides a new technical approach for the integrated application of ECM and the implementation of covert communication.
【作者单位】： 电子信息控制重点实验室;电子科技大学通信抗干扰国家重点实验室;
【基金】：重点实验室基金资助项目(6142105040116210XXXX)
【分类号】：TN914.42;TN97
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本文编号：1969273