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Proceedings of the 2001 IEEE Radar Conference (Cat. No.01CH37200)

3-3 May 2001

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  • Proceedings of the 2001 IEEE Radar Conference (Cat. No.01CH37200)

    Publication Year: 2001
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    Freely Available from IEEE
  • Conference Author Index

    Publication Year: 2001, Page(s):463 - 464
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    Freely Available from IEEE
  • GMTI performance of ΣΔ-STAP for a forward-looking radar

    Publication Year: 2001, Page(s):258 - 263
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB) | HTML iconHTML

    The GMTI performance of ΣΔ-STAP for a forward looking phased array radar is analyzed using the simulation tool RLSTAP. ΣΔ-STAP processes the returns from sum and difference antenna channels. When used in conjunction with partially adaptive STAP methods ΣΔ-STAP is shown to achieve good GMTI performance View full abstract»

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  • Performance comparison of fast-scan GMTI/STAP architectures

    Publication Year: 2001, Page(s):252 - 257
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB) | HTML iconHTML

    This paper presents a study on multibeam radar architectures to provide wide-area fast-scan ground moving target indicator (GMTI) coverage. The minimum dwell time of a GMTI radar system is often determined by the Doppler processor. The revisit rate can be lowered, while still meeting dwell time constraints, by using multibeam techniques to cover more area in each dwell. The two multibeam technique... View full abstract»

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  • Characterization of C-band and X-band InSAR data for 3D urban analysis

    Publication Year: 2001, Page(s):415 - 420
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB) | HTML iconHTML

    We compare C and X-band SAR measurements over the same urban area to understand which kind of information they are able to provide and which are the differences and similarities of the data sets. In particular, we consider data recorded over Los Angeles by the C-band NASA/JPL AIRSAR system and by the X-band Intermap Star-3i system. We analyze for both data sets the original range measurements as r... View full abstract»

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  • SAR image processing for moving target focusing

    Publication Year: 2001, Page(s):58 - 63
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB) | HTML iconHTML

    A novel synthetic aperture radar (SAR) image processing technique has been developed to refocus the ground moving target signature from its smeared response in the SAR image of the stationary ground. The technique implements a matched moving target filter that is derived from the signal history along the target range-Doppler migration path mapped onto the SAR image from its real-space trajectory. ... View full abstract»

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  • Determinations of aircraft position and orientation from images of a millimetric surface radar

    Publication Year: 2001, Page(s):457 - 461
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB) | HTML iconHTML

    The present work mainly deals with the determination of geometrical and kinematics parameters by the processing of images gathered from a high-resolution radar sensor. The aim of this application is to determine the orientation and the position of aircraft in an Advanced Surface Movement Guidance and Control (A-SMGCS) environment. The radar sensor is a prototype operating in the millimetre band (9... View full abstract»

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  • Selection of the radar waveform from tracking considerations

    Publication Year: 2001, Page(s):246 - 251
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB) | HTML iconHTML

    The conventional approach for tracking system design is to treat the sensor and tracking subsystems as completely independent units. However, the two subsystems can be designed jointly to improve system (tracking) performance. It is known that different radar signal waveforms result in very different resolution cell shapes (for example, a rectangle versus an eccentric parallelogram) in the range/r... View full abstract»

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  • A novel approach for CFAR processors design

    Publication Year: 2001, Page(s):284 - 288
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    Two novel constant false alarm rate (CFAR) detectors, the And-CFAR and Or-CFAR, are proposed, The two new CFAR detectors improve the conventional cell averaging CFAR (CA-CFAR) and order statistics CFAR (OS-CFAR) by making full use of the cell information. The novel CFAR processors combine the result of the CA-CFAR and OS-CFAR to get a better detection performance. In a homogeneous background, the ... View full abstract»

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  • Angular glint suppression for mm-wave terminal guidance radar based on polarization agility and RCS weighting

    Publication Year: 2001, Page(s):410 - 414
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB) | HTML iconHTML

    Angular glint greatly reduces guidance accuracy of millimeter radar. As a way to suppress its effect, a RCS weighting method employing polarization agility and frequency agility is proposed. In simulation, an aircraft is decomposed into thirty parts to get the RCS and two-dimensional linear angle errors caused by angular glint. The results show that the square root error value of angular glint can... View full abstract»

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  • Enhancements of NP-3 UHF image quality using digital spotlighting technique

    Publication Year: 2001, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB) | HTML iconHTML

    This paper is concerned with signal processing issues that are associated with foliage penetrating (FOPEN) USA Navy NP-3 ultra-wideband (UWB) synthetic aperture radar. The digital signal processors that were developed for the NP-3 data commonly used a radar beamwidth angle that was limited to 35 degrees. Provided that the NP-3 radar beamwidth angle was 35 degrees, the NP-3 SAR system would approxi... View full abstract»

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  • Clutter tuning for bistatic clutter control

    Publication Year: 2001, Page(s):52 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1320 KB) | HTML iconHTML

    A radar modeling and simulation tool known as RLSTAP is used to model a bistatic clutter tuning scenario. The transmit system and the receive system “circle” the ground patch where the target lies in opposite senses so the Doppler shift due to the motion of the transmit (Tx) system is cancelled by an equal and opposite Doppler shift due to the motion of the receive (Rx) system. Key res... View full abstract»

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  • Processing of multi-aperture SAR to produce fine-resolution images of arbitrarily large extent

    Publication Year: 2001, Page(s):451 - 456
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB) | HTML iconHTML

    The spatial extent that can be accurately imaged by a synthetic aperture radar (SAR) is unfortunately limited. This restriction results from the fact that the number of independent pixel estimates produced by a SAR is constrained by the number of independent measurements that it collects. The solution is to increase the number of independent sensor measurements, without modifying sensor resolution... View full abstract»

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  • Track maintenance and positional estimation via ground moving target indicator and geolocation data fusion

    Publication Year: 2001, Page(s):239 - 245
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB) | HTML iconHTML

    In modern tactical environments, information from a variety of sensors may be simultaneously utilized to improve target detection and tracking procedures. Towards this goal, two data fusion algorithms are developed that implement such processing. First, a GMTI (ground moving target indicator)/geolocation algorithm is derived to assist with track maintenance during periods of GMTI data blackout. Ne... View full abstract»

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  • Optimal waveforms and processing for sparse frequency UWB operation

    Publication Year: 2001, Page(s):105 - 110
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB) | HTML iconHTML

    Spectrum notching on transmit is crucial to the deployment of UWB FOPEN SAR radars. However, it results in high peak and integrated sidelobes, which translate to loss in received image quality. In order to recover the image quality, we “fill-in” the effects of the frequency notches using the Burg algorithm, before the final image formation View full abstract»

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  • Development of a complete radar system model

    Publication Year: 2001, Page(s):35 - 40
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB) | HTML iconHTML

    This paper describes an approach to modelling synthetic aperture radar (SAR) and ground moving target identification (GMTI) modes that is applicable to both monostatic and bistatic operation. We describe an extensible method for modelling large complex radar systems that can be used to model platform and target motion, analogue and digital electronic components and complex signal processing algori... View full abstract»

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  • A nonlinear suppression technique for range ambiguity resolution in pulse Doppler radars

    Publication Year: 2001, Page(s):141 - 146
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    This paper reintroduces a novel range ambiguity resolution technique, invented by Palermo (1962), called nonlinear suppression. A set of M unique modulations is selected which have desirable (mutually dispersive) cross-correlation properties. The transmitted pulse train is constructed by successively modulating each pulse with one of the M modulations. The received data are processed in M independ... View full abstract»

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  • Chaotic phase code for radar pulse compression

    Publication Year: 2001, Page(s):279 - 283
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    This paper presents a novel binary phase coding scheme for radar pulse compression, which is derived from the logistic-map equation in the chaotic theory. The proposed logistic-map-based binary phase code (LMBPC) makes it feasible to achieve superior performance in detection range. The logistic-map equation in the chaotic theory is range resolution and Doppler tolerance simultaneously. The propert... View full abstract»

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  • Bistatic reflectivity measurements at X, Ku, Ka and W-band frequencies

    Publication Year: 2001, Page(s):404 - 409
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB) | HTML iconHTML

    Data that realistically represents the phenomenology of bistatic reflectivity is essential to the design of radar systems intended to sense land based targets and low flying aircraft. A large database exists describing the response of X-band monostatic reflectivity, and limited data is available for X-band bistatic reflectivity. However, there is little data in the literature describing bistatic r... View full abstract»

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  • Performance analysis of the nonhomogeneity detector for STAP applications

    Publication Year: 2001, Page(s):193 - 197
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB) | HTML iconHTML

    We consider the statistical analysis of a recently proposed nonhomogeneity detector (NHD) for Gaussian interference statistics. We show that a formal goodness-of-fit test can be constructed by accounting for the statistics of the generalized inner product (GIP). Specifically, the normalized-GIP follows a central-F distribution. This fact is used to derive the goodness-of-fit test. We also address ... View full abstract»

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  • Radar imaging of ground moving targets

    Publication Year: 2001, Page(s):426 - 431
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB) | HTML iconHTML

    We analyze the effect of target motion on synthetic aperture radar images and discuss how a multi-aperture radar can detect, focus and relocate moving targets in clutter. AN/APY-6 radar data is used for analyzing the radar imaging of ground moving targets. Some applications of the time-frequency transform to detect and focus moving targets are also discussed View full abstract»

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  • An adaptive algorithm for enhanced target detection for bistatic space-based radar

    Publication Year: 2001, Page(s):70 - 74
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB) | HTML iconHTML

    The use of space-based bistatic radar has many attractive features (particularly related to covert observation and survivability) over that of conventional monostatic systems. However (if detection performance is to approach the monostatic case) these advantages come at the price of inherently more complex hardware and processing algorithms. In particular, when considering a bistatic system that u... View full abstract»

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  • Moving target imaging in foliage using polarimetric multi-frequency antenna array SAR

    Publication Year: 2001, Page(s):46 - 51
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB) | HTML iconHTML

    Because of the low signal-to-clutter ratio, it is a difficult problem to detect and image moving targets in foliage. A multi-frequency multi-aperture polarimetric SAR (MFMA POLSAR) system is proposed for imaging of moving targets in foliage. The MFMA POLSAR extends the multi-frequency antenna array SAR (MF-SAR) system to multiple polarizations. Full polarization is used in MFMA POLSAR to achieve a... View full abstract»

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  • Clutter suppression in radar by quasi-continuous complex signal and processing algorithm structure optimization

    Publication Year: 2001, Page(s):438 - 443
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    The synthesis algorithm of a pair of signal-linked filters for navigational radars with one antenna using a complex amplitude-phase modulated waveform of long duration with coherent processing in the receiver is considered. A harmful influence of the ambiguity function (AF) sidelobes on target detection and parameter measurement is a significant obstacle to using the long pulse duration complex mo... View full abstract»

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  • A numerical waveform design approach to decorrelate target and noise

    Publication Year: 2001, Page(s):448 - 450
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB) | HTML iconHTML

    Traditional radar detection relies on predefined models for assessment of probability of detection and probability of false alarm. These models assume a target uncorrelated with clutter or other sources of interference. This assumption concerning decorrelation between the target and interference is not strictly true. We propose an iterative approach to design “optimal” waveforms that m... View full abstract»

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