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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Monostatic continuous-wave radar integrating a tunable wideband leakage canceler for indoor tagless localization
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Monostatic continuous-wave radar integrating a tunable wideband leakage canceler for indoor tagless localization

机译：集成了可调宽带泄漏消除器的单基地连续波雷达，用于室内无标签定位

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摘要

Continuous-wave (CW) radars have been recently investigated in healthcare aiming at contactless health monitoring. However, a major problem in monostatic CW architectures is represented by the unwanted leakage produced by poor isolation between transmitter and receiver, which can drastically decrease the receiver's sensitivity reducing therefore the radar dynamic range. Although this situation can be easily controlled in case of narrowband CW radar by an appropriate passive microwave design, it becomes much more complicated in case of stepped-frequency CW and frequency-modulated CW architectures that present an ultra-wideband nature. In this paper, a monostatic CW radar integrating a tunable wideband leakage canceler aiming at indoor tagless localization is presented and discussed. The use of the feedforward canceler allows a strong reduction of the unwanted leakage over the whole radar bandwidth. Experimental results demonstrate the feasibility of this approach, showing an outstanding improvement of the radar dynamic range.
机译：连续波（CW）雷达最近在医疗保健领域进行了研究，旨在实现非接触式健康监测。但是，单静态CW体系结构中的一个主要问题是由于发射机与接收机之间的隔离不良而产生的不必要的泄漏，这会大大降低接收机的灵敏度，从而降低雷达的动态范围。尽管在窄带CW雷达中可以通过适当的无源微波设计轻松控制这种情况，但在呈现超宽带特性的步进频率CW和调频CW体系结构中，情况变得更加复杂。本文提出并讨论了针对室内无标签定位的集成可调谐宽带泄漏消除器的单基地连续波雷达。前馈消除器的使用可以大大减少整个雷达带宽上的有害泄漏。实验结果证明了这种方法的可行性，表明了雷达动态范围的显着改善。

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