基于微波热辐射的空间谱估计目标探测方法

A Spatial Spectrum Estimation Method of Target Detection Based on Microwave Thermal Radiation

将自适应阵列信号处理中的空间谱估计方法应用于微波热辐射阵列接收系统,提出一种新的基于目标微波热辐射信号和空间谱估计的全被动式探测方法。该方法利用空间谱估计实现超分辨率,利用稀疏排列减少所需的阵元数。实验结果表明:该目标探测方法可行,且实现了目标的超分辨率探测。

In this paper, the Spatial Spectrum Estimation, an important part of adaptive array signal processing, is used for estimating the direction of thermal radiation signal received by array. A novel method that a Spatial Spectrum Estimation method of target detection based on microwave radiation received by radiometer array is proposed. This method uses the Spatial Spectrum Estimation to achieve super resolution and the sparse arrangement of array to reduce the number of sensors. The experiment results show that the method proposed by this paper is feasible and achieves the super resolution of target detection at the meanwhile.