When a PLL is fixed on one of a large number of frequencies developed at a Doppler channel 'S', the frequency is selected and maintained in a range channel 'T2U2 . These frequencies generate radar echoes from a large number of targets, signal echoes returned through a number of paths ...
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A doppler control circuit for a CW or pulse Doppler Radar system for monitoring not only the phase shift between echo signals from several targets but also the amplitude difference between the several targets and to further provide a phase lock loop which tunes the radar to a particular target ...
A laser beam is directed at the medium to be measured, and radiation which is then emitted by the medium is measured by a detector. ... N Schmitt,W Rehm,T Pistner - US 被引量: 6发表: 2010年 加载更多来源期刊 Applied Optics 2002年 研究点推荐 remote sensing Doppler radar Doppler ...
Pre-Doppler STAP Approach Using Adaptive Doppler Information and Its Application to Four-Channel Radar Data in a Forward-Looking GMTI Mode 来自 ResearchGate 喜欢 0 阅读量: 6 作者: B Bickert 收藏 引用 批量引用 报错 分享 全部来源 求助全文 ResearchGate 相似文献...
Doppler asymmetries have been observed in model tank experiments in the signal received after being scattered from a wind‐driven surface. A distinct spectral shift was observed when the plane containing the transmitter and receiver was perpendicular to the wind direction. This paper examines the conje...
Its essential feature is the so-called virtual motion, that provides Doppler shifts and temporal fading, but keeps all propagation parameters quasi-static and ensures Wide-Sense Stationary (WSS) for a small-scale movement of a mobile device. 2.2.2.2 Requirements for 5G channel models are still ...
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6. A pulsed Doppler radar device according to claim 2, wherein two sampling-and-holding circuits are employed, each with a cooperable filter, which circuits are connected in series. 7. A pulsed Doppler radar device according to claim 6, wherein the attenuation curve of the second filter has...