Location method of near distance electromagnetic radiation source based on compressive sensing

A locating method of near distance electromagnetic radiation source is proposed in this paper. To avoid the disadvantages of complexity, high hardware cost and large volume of the conventional multi-channel array system, a single antenna motion virtual array system is proposed to realize the function of the near-field location. On the basis, the sparsity of the radiation source in the spatial position of the measured area is proposed. The number and position of the radiation sources are reconstructed with less sampling data by using the non-stop motion sampling and the compressive sensing method. The sampling data quantity is reduced under the premise of ensuring the location accuracy, and the error effect caused by the time delay of the multiple sampling in every array element is eliminated. The feasibility of the method is verified by simulation. Then the system is designed for the actual test and good results have been achieved in the experiment.