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This paper mainly addresses the through-wall life-sign detection with the low signal-to-noise ratio in the Gaussian background. A novel detection approach based on fourth-order cumulant is proposed to extract the weak life-sign such as human breathing. First, MTI is adopted to reduce the zero-frequency clutters including wall echoes. Then, according to the characteristic of suppression for Gaussian...
Based on the Particle Swarm Optimization algorithm, the real parts of the 2-D homogeneous and the isotropic medium was reconstructed by the method of moment in the circle configuration, and the analysis was noise free and constrained. The result shows the reconstruction method was suitable in this circumstance. The study will provide the theoretical preparation, such as clinical diagnosis, remote...
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