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This paper considers the localization of an emitter with an unknown linear frequency modulation (LFM) signal in the passive radar systems based on the direct position determination (DPD) method. To improve the localization accuracy, a novel strategy, wherein the position of the emitter and the unknown transmitted signal are jointly estimated, is proposed. As a result, a six-dimensional estimation...
Terahertz imaging is considered as a promising detection and imaging method with wide application prospect in security inspection and counter-terrorism. In this paper, we present a frequency-modulated continuous-wave (FMCW) imaging radar with phase coherent reception. The proposed radar scheme works at 240GHz with a bandwidth of 4.8GHz. The basic functionality of the radar has been verified experimentally...
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