Proceedings ArticleDOI
Mitigation of range folded clutter by a nonrecurrent waveform
J.T. Clancy,H.F. Bascom,M.P. Hartnett +2 more
- pp 79-83
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TLDR
In this article, the application of a new non-recurrent waveform (NRWF) to a relocatable over-the-horizon radar (ROTHR) located in southern Virginia is described.Abstract:
This paper describes the application of a new nonrecurrent waveform (NRWF) to a relocatable over-the-horizon radar (ROTHR) located in southern Virginia. The waveform is designed to improve the detection of aircraft targets through the mitigation of long-range spread Doppler clutter (SDC) encountered during nighttime operations. A discussion of the NRWF and its principle of operation are included, along with a description of ROTHR modifications. The focus of the paper is the presentation of test results from engineering, clutter mitigation, and target detection tests conducted during January through April of 1997.read more
Citations
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Proceedings ArticleDOI
Non-recurrent wideband continuous active sonar
TL;DR: In this article, a continuous active sonar (CAS) waveform with circular Costas frequency-staggering across chirp repetition intervals is proposed to achieve high revisit rates and wideband processing gains with suppression of rangeambiguous returns.
Patent
Near-vertical incidence hf radar
TL;DR: In this article, the authors present a frequency management/ionospheric sounding system for a near vertical direction (NVD) radar system, which consists of a transmitting system, a receiving system, signal processing system and a signal processing device.
Dissertation
Radar Space-Time Processing for Range-Folded Spread-Doppler Clutter Mitigation
TL;DR: Lee et al. as mentioned in this paper proposed a range-folded spread-doppler clutter mitigation method for range-folded spread-Doppler scatter-divergence.
Journal ArticleDOI
Implications of Diversified Doppler for Random PRI Radar
Shannon D. Blunt,Lumumba A. Harnett,Brandon Ravenscroft,Rachel J. Chang,Christopher Allen,Patrick McCormick +5 more
TL;DR: In this paper , a physically meaningful Doppler manifold signal model that incorporates slow-time coding and is examined in the context of monostatic, multiple-time-around (MTA) scattering, and multiple-input multiple-output (MIMO) configurations is presented.
Proceedings ArticleDOI
Space-time adaptive processing for range-folded spread-Doppler radar clutter mitigation
William W. Lee,Jeffrey L. Krolik +1 more
TL;DR: Blind source separation methods are used to exploit the known Doppler separation afforded by non-recurrent waveforms in order to estimate the spatial wavefront of the clutter across a linear receive array and spatial adaptive processing using this estimated wavefront is used to suppress range-folded clutter without sacrificing usable Dopple space.
References
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Book
Principles of high-resolution radar
TL;DR: In this paper, a re-lease of the classic 1969 text examines step-by-step the development of radar resolution theory, including the capabilities and limits of radar and the details of radar design.
FM/CW Radar Signals and Digital Processing
TL;DR: In this paper, the use and processing of the FM/CW signal for radar and acoustic sounder systems are examined, along with real-time digital processing via minicomputers.
Journal ArticleDOI
A model of HF sky wave radar clutter
TL;DR: In this paper, a theoretical relationship between Doppler spread and irregularity distribution is derived and combined with ray-tracing techniques to produce a model of HF sky wave radar clutter.
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