Proceedings International Radar Conference

8-11 May 1995

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  • Proceedings International Radar Conference

    Publication Year: 1995
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  • Author index

    Publication Year: 1995
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    Freely Available from IEEE
  • Adaptive channel equalization for space-time adaptive processing

    Publication Year: 1995, Page(s):624 - 628
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    The space-time adaptive processing (STAP) can improve the performance of airborne early warning (AEW) radar. But, the receiver channel mismatch will give rise to much degradation of the performance for STAP. This paper introduces an efficient adaptive channel equalization method which can compensate the channel mismatch automatically by least squares theory. The effect of equalizer parameters on e... View full abstract»

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  • Non coherent integration in a medium PRF radar

    Publication Year: 1995, Page(s):91 - 94
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    In a medium PRF radar, detection is ambiguous in both range and radial speed. The paper discusses some methods for the detection and resolution of range and radial speed in a radar with a burst oriented waveform, featuring PRF and RF changes from burst to burst. Two methods of detection are compared: (1) initial detection on a burst by burst basis and subsequent combination of the detections obtai... View full abstract»

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  • About the influences of polarization agile jammers to adaptive antenna arrays

    Publication Year: 1995, Page(s):619 - 623
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    We consider a jammer signal with different polarization states. Different polarization states of the jammer signal during weight vector adaptation and during the use of this weight vector can yield a significant reduction of the jammer suppression. If the jammer polarization scenario doesn't change during the weight calculation and the weighting of the sample vectors, antenna element errors have n... View full abstract»

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  • Radar locating of small-sized targets on the rough sea surface background

    Publication Year: 1995, Page(s):89 - 90
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The task of locating small-sized targets on a rough sea surface background is a complicated combined scientific-technical problem the solution of which calls for a number of special procedures: the analysis of the returned signals from the sea surface and over water target characteristics; and the choice of selection method, and locating algorithm development View full abstract»

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  • RADARSAT image characteristics and application requirements

    Publication Year: 1995, Page(s):351 - 355
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    RADARSAT represents Canada's entry into the arena of Earth observation satellite owner/operatorship. The RADARSAT program is supported by strong partnerships between Canadian and international industry, federal and provincial governments and various other partners. We review RADARSAT's image characteristics, addressing various application requirements. The data collected by RADARSAT will be useful... View full abstract»

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  • Adaptive airborne MTI: comparison of sideways and forward looking radar

    Publication Year: 1995, Page(s):614 - 618
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Clutter echoes received by a moving radar exhibit a motion induced Doppler bandwidth which degrades detection of slowly moving targets. This Doppler spread effect can be overcome by use of adaptive space-time clutter filters which implicitly compensate for the radar platform motion. To apply space-time processing a multi-channel antenna is required (spatial dimension of the space-time filter). In ... View full abstract»

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  • Coherent radar detection of targets against a combination of K-distributed and Gaussian clutter

    Publication Year: 1995, Page(s):83 - 88
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    This paper introduces the mathematical model of radar echoes generated by the mixture of coherent K-distributed and Gaussian distributed clutter sources. The optimum strategy to detect an a priori known target against the above mentioned disturbance and thermal noise is also presented, based on the likelihood ratio test. A Monte Carlo simulation has been performed to evaluate the receiver operatin... View full abstract»

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  • The radar industry in South Africa

    Publication Year: 1995, Page(s):347 - 350
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    This paper presents an overview of the radar industry in South Africa since the first radars were built and used during World War II. The achievements and progress that have been made since then for tracking radar systems, search/designation radar systems as well as radar related technologies are discussed View full abstract»

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  • ATC primary radar signal analysis for target characterisation. A model validation

    Publication Year: 1995, Page(s):516 - 520
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The work presents an analysis of the return signal from an ATC radar. The signal is backscattered from a moving target, considered as a rigid body and rotating and moving parts. Analysis results of the modulation components present in the signal and a theoretical model based upon simplifying hypotheses are reported. Little information can be found in the literature on this subject, and the theory ... View full abstract»

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  • Space-time adaptive processing in modern electronic warfare environments

    Publication Year: 1995, Page(s):609 - 613
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Extensive investments have made toward the development of adaptive array technology for airborne early warning (AEW) radar applications. A characteristic common to all AEW space-time adaptive processing (STAP) approaches designed to operate in a nonhomogeneous interference environment is that they require an estimate of the statistics of that environment based upon measured data from within the mu... View full abstract»

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  • Surveillance performance

    Publication Year: 1995, Page(s):77 - 82
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The concept of surveillance performance, introduced by Kronhamn (see IEEE 1993 National Radar Conference, Boston, USA, 1993) is generalized. Surveillance performance is a joint search and track performance measure for surveillance sensors. The measure includes object acquisition and track probability, track continuity, track accuracy and false track generation. The performance can be calculated an... View full abstract»

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  • Recent developments in Russian radar systems

    Publication Year: 1995, Page(s):340 - 346
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1524 KB)

    During the past several decades, the Soviet Union investment in air defense systems has exceeded that of the Western nations. New relationships with the West have provided opportunities for us to see aspects of a new generation of Russian radar engineering not previously evident, with some surprising results. A few of these are described, in areas of surface-to-air missile control radar systems us... View full abstract»

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  • 77 GHz radar sensor for car application

    Publication Year: 1995, Page(s):373 - 379
    Cited by:  Papers (14)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    This paper describes the development of a radar sensor system in the 77 GHz domain and the current status of experimental trials. The radar concept and the signal processing has been developed by Technical University Braunschweig and the trials are being performed by Volkswagen AG, Wolfsburg. The application background for a car radar sensor is outlined and a requirement profile is derived therefr... View full abstract»

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  • A new transportable precision approach radar

    Publication Year: 1995, Page(s):511 - 515
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    The monopulse technique is widely used for tracking radars. For tracking at a low elevation angle, a narrow beam is required in the elevation plane to reduce multipath signals such as ground reflections. In this case, an elliptical aperture is desired. The authors have developed a new transportable precision approach radar for a radar approach control using a phased array antenna with high trackin... View full abstract»

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  • Training method in space-time adaptive processing with strong generalizing ability

    Publication Year: 1995, Page(s):603 - 608
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The effects of array errors on the clutter spectra are discussed. It is pointed out that, just like that in pattern recognition problems, the training method has significant effects on the performance of space-time adaptive processing (STAP) techniques. A reasonable training method is given, which exhibits strong generalizing ability. Simulation results based on both the steady-state clutter covar... View full abstract»

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  • A new Doppler processing technique for detection performance improvement in existing airborne radars

    Publication Year: 1995, Page(s):72 - 76
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    This paper discusses a new signal processing technique for target detection performance improvements in existing airborne early warning radar systems. A new Doppler processing algorithm, called the Doppler domain localized generalized likelihood ratio detector, is considered, and its performance compared to the approaches currently in use for weak target detection in severe clutter. It is shown th... View full abstract»

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  • Double-parameter CFAR detector for Weibull clutter

    Publication Year: 1995, Page(s):680 - 685
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Presents a double-parameter CFAR with very reasonable losses and low computational complexity. Its basic architecture has been conceived from tail extrapolation theory. The detector uses a detection threshold, set from the measured PFA which is obtained with an auxiliary threshold (pseudothreshold), lower than the final detection threshold. Starting from the basic scheme, a CFAR detector for Weibu... View full abstract»

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  • An ultrawideband microwave-radar conceptual design

    Publication Year: 1995, Page(s):16 - 21
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    The paper outlines the special considerations that characterize the design of an UWB radar for the detection of low altitude missiles over the sea. It discusses the factors which enter into the choice of frequency, and the selection of the transmitter, antenna, and receiver. Reviewed are signal processing issues concerning detection of UWB signals in noise and clutter, non-Doppler MTI based on the... View full abstract»

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  • Performance comparison of radar receivers subject to amplitude and frequency modulated audio interference

    Publication Year: 1995, Page(s):233 - 238
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    This paper deals with the evaluation and comparison of radar performance, when the receiver is subject to electromagnetic interference (EMI) from communication systems. The interference is modelled as a random process, representative of voice signal, which produces an RF signal by amplitude modulation (AM), double side band (DSB) modulation or frequency modulation (FM). Several schemes for the rad... View full abstract»

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  • Ellipsoidal gating for an airborne track while scan radar

    Publication Year: 1995, Page(s):334 - 339
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    In an airborne surveillance radar, tracking in the presence of clutter and multiple targets requires that proper observations (plots) be assigned to each target track by comparing them with the corresponding predicted target positions. This paper discusses the solution used to capture low as well as high maneuvering targets and also to control the false correlations of tracks with the observations... View full abstract»

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  • Target tracking by neural network maneuver detection and input estimation

    Publication Year: 1995, Page(s):143 - 148
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    Although the Kalman filter is a powerful linear estimator for a continuous random process, it may fail to converge in the presence of sharp measurement discontinuities which may be caused by clutter or sudden target maneuvers. On the other hand, conventional models for the detection and compensation of target maneuvers are primarily based on a linear mapping of the innovation process onto an artif... View full abstract»

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  • VORAD collision warning radar

    Publication Year: 1995, Page(s):369 - 372
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    This paper discusses the use of radar technology for collision warning and other vehicular applications. Radar design difficulties and trade-offs regarding operating frequencies, frequency bandwidth requirements, transmitted power and the use of existing low cost production components are presented. The first commercial production radar system to be marketed, the VORAD system, is discussed and the... View full abstract»

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  • An application of automatic target recognition in marine navigation

    Publication Year: 1995, Page(s):250 - 255
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    An approach to sea target recognition using an incoherent marine surveillance radar is examined in this paper. Reasons for reducing the target of recognition to its tonnage class, approximate size and resulting maneuvering abilities are described. An algorithm for automatic target recognition that effectively eliminates the negative impact of noise, sea clutter and distance from the target is desc... View full abstract»

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