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In through-wall indication of a moving human target in enclosed structures, a shadow effect because of the human target blocking parts from illumination on the back wall will emerge, referred to as a “ghost” in indication results. The shadow ghost moves as the human target does, which makes causal change detection (CD) invalid to separate them. To mitigate the shadow ghost, we analyze its differences...
Ultra-wide band (UWB) through wall radar (TWR) is considered as one of the preferred techniques for through-wall human indication due to its good penetration and high range resolution. UWB TWR benefits from its large bandwidth, but the large bandwidth inadvertently results in an issue not substantial in narrowband radars — high timing jitter effect. In typical impulse TWR, timing jitter is mainly...
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