Passive coherent location radar systems. Part 2: Waveform properties

Baker, CJ; Griffiths, Hugh; Papoutsis, Ioannis

doi:10.1049/ip-rsn:20045083

Cited by 248 publications

(120 citation statements)

References 9 publications

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“…where inn i , i = j as defined in (4) and (5). Note that m, m r and n are all vectors of length (N − 1).…”

Section: A Passive Measurement Model For Distributed Aperturesmentioning

confidence: 99%

“…Such an array is referred to as a distributed aperture [1]. A number of passive imaging or detection approaches have been presented in the literature [2][3][4][5][6][7][8][9][10][11][12][13]. Our method has the following advantages as compared to the existing passive imaging techniques: 1) We derive a data model suitable for passive distributed sparse arrays which relates the statistics of measurements at a given receiver to the statistics of the measurements at other receivers, as well as the Green's function of the background environment.…”

Section: Introductionmentioning

confidence: 99%

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Passive imaging exploiting multiple scattering using distributed apertures

Son

Yazıcı

2010

2010 IEEE International Conference on Image Processing

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We develop a new passive image formation method capable of exploiting information about multiple scattering in the environment using measurements from a sparse array of receivers that rely on illumination sources of opportunity. We use a physics-based approach to model wave propagation and develop a statistical model that relates measurements at a given receiver to measurements at other receivers. We formulate the imaging problem as a spatially resolved binary hypothesis testing problem using the model between the measurements at different receivers, statistics of the objects to be imaged and statistics of the additive noise and clutter. We address the spatially resolved hypothesis testing problem by constraining the associated discriminant functional to be linear and by maximizing the signal-to-noise-ratio of the test-statistic, and use the resulting spatially resolved test-statistics to form the image. We present numerical simulations to demonstrate the performance of the passive imaging algorithm.

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“…where inn i , i = j as defined in (4) and (5). Note that m, m r and n are all vectors of length (N − 1).…”

Section: A Passive Measurement Model For Distributed Aperturesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Passive imaging exploiting multiple scattering using distributed apertures

Son

Yazıcı

2010

2010 IEEE International Conference on Image Processing

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“…Due to its capabilities of low-cost operation and covert surveillance, PBR has attracted considerable and increasing interests in recent years. Because the sidelobes of the ambiguity function of PBR usually have a time-varying structure and exist at a level not greatly lower than that of the peak [2,3,4,5], this can lead to: 1) The direct signal interference (DSI), which is received by the sidelobe of the surveillance antenna and significantly stronger than the clutter echo, masks target echo signals, 2) The strong clutter echoes masks target echo signals. In particular, when sea-surface targets are detected, the spread Doppler spectrum of sea clutter makes the task of detecting low-velocity targets a very challenging problem [6,7].…”

Section: Introductionmentioning

confidence: 99%

Multi-channel NLMS-based sea clutter cancellation in passive bistatic radar

Shan

Tao

et al. 2014

IEICE Electron. Express

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Sea clutter suppression is critical in the detection of low-velocity targets using a passive bistatic radar. The residual sea clutter may become high when the normalized least-mean-square (NLMS) algorithm with a small step size is used for this purpose. While a large step size can be used to reduce the residual sea clutter, it yields a widened filter notch, and thereby, causes significant target signal energy loss. A multi-channel NLMS algorithm is proposed to solve this problem, and its effectiveness is verified by simulation and real radar data analysis.

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“…From the current application [8], radar network monitoring the designated airspace, realtime monitoring of invasion of the enemy target, have become a hot topic in the construction of air defense sensor network [9]. As a result, effective and reasonable distribution of radar network for the detection of invaded target in order to find them as soon as possible becomes a key technology in the construction of air defense radar network [10].…”

Section: Introductionmentioning

confidence: 99%

A Study on Search Strategies of Netted Surveillance Radar

Li¹,

Gao²,

Li³

2014

Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science

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Abstract-Aiming at the netted radar surveillance problem, an intelligent search strategy is put forward. Firstly the target's probability values is given, by ESM pre-search the specified airspace surveillance, as the target distribution weights; Then based on the optimization criterion of maximizing the weighted probability of detection, the distribution function of radar-target is built and the algorithm is given; Finally, the feasibility of the method is verified through MATLAB simulation experiment. The content of this paper can provide theoretical guidance for the actual engineering application.

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Passive coherent location radar systems. Part 2: Waveform properties

Cited by 248 publications

References 9 publications

Passive imaging exploiting multiple scattering using distributed apertures

Passive imaging exploiting multiple scattering using distributed apertures

Multi-channel NLMS-based sea clutter cancellation in passive bistatic radar

A Study on Search Strategies of Netted Surveillance Radar

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