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文章提出了一种新的标志位频谱感知方法,主要由数据采集和频谱感知两部分组成.前者主要基于标准的压缩感知技术,研究了一种标志位数据采集方法,仅保留测量数据的标志位信息,从而减少了测量数据的存储量.后者基于一致恢复原理和共轭梯度算法来构造频谱感知算法.仿真结果表明,标志位频谱感知方法可以在降低数据采集量及存储量的同时完美获取原始信号的频谱信息.该方法可以应用于无线通信、电子对抗、智能吸波结构以及感知无线电的前端频谱测量设计阶段中.
In this paper, we propose a new method to detect the sign bit spectrum, which is mainly composed of data acquisition and spectrum sensing, the former is mainly based on the standard compression sensing technology, and a method of data acquisition of sign bit is studied. Which reduces the storage of measurement data.The latter is based on the principle of consistent recovery and the conjugate gradient algorithm to construct the spectrum sensing algorithm.The simulation results show that the symbol spectrum sensing method can be perfectly obtained while reducing the amount of data acquisition and storage Spectrum information of the original signal.The method can be applied in the design phase of front-end spectrum measurement of wireless communication, electronic countermeasure, smart absorbing structure and cognitive radio.