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Due to the attenuation effects of walls, the signal to noise ratio (SNR) for targets indoor is unavoidably decreased, which seriously influences the quality of through-the-wall imaging (TWI) results. To suppress the deterioration of noise and clutters yield by walls, an adaptive noise power spectrum estimation method is put forward in this paper to enhance the performance of TWI. Through a combination...
Human target detection and tracking have great potential in military, safety, security and entertainment applications. In this paper, a complete processing procedure is proposed for human tracking in foliage-penetration environment by multistatic radar. It consists of five main steps, including clutter suppression, target detection, measurement estimation, target localization and target tracking....
Estimation of the basic parameters, wall thickness and dielectric constant, is important in through-the-wall radar imaging. Ambiguities in wall characteristics will degrade the image focusing quality of synthetic-aperture radar. In order to obtain a quick and precise estimation of wall parameters, an equivalent propagation model of an electromagnetic wave in the air–wall–air medium is first developed...
The impact of moving target on the one-dimensional coherent imaging in stepped radar is analyzed in this paper. A cross-correlation-based estimation method of radial velocity is proposed. It is proven by analytical derivation that the cross-correlation analysis on adjacent pulses yields the quantity related to the radial acceleration and velocity of moving target, based on which the radial motion...
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