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Radar Conference, 2000. The Record of the IEEE 2000 International

Date 12-12 May 2000

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Displaying Results 1 - 25 of 157
  • The Record of the IEEE 2000 International Radar Conference [front matter]

    Publication Year: 2000, Page(s):i - xvi
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    Freely Available from IEEE
  • Record of the IEEE 2000 International Radar Conference [Cat. No. 00CH37037]

    Publication Year: 2000
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s):893 - 894
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    Freely Available from IEEE
  • On the effects of sea roughness on the predictions of pathlosses above sea

    Publication Year: 2000, Page(s):370 - 374
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    In the last few years, a major weakness of modern path loss prediction methods over sea has been thought to be the inadequate treatment of sea roughness in the models. Nevertheless, experimental investigations of the effect of sea roughness on prediction quality are lacking. In this paper, we show prediction errors obtained as a function of wind speed, from which sea roughness can be inferred, usi... View full abstract»

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  • Modelling of air-soil interface clutter for ultrawideband radar

    Publication Year: 2000, Page(s):365 - 369
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    This paper presents our global approach to model ultra-wideband (UWB) clutter. In this approach, we consider plane wave scattering (in the time domain) from a rough air-soil interface. The time-domain scattering is computed via two different techniques. The first one is a two-dimensional (2D) finite difference time domain (FDTD) algorithm, which is particularly well adapted to frequency-dependent ... View full abstract»

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  • Impulse radar emergency system to prevent damage due to harmful objects in vegetation

    Publication Year: 2000, Page(s):116 - 121
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    The paper presents an experimental radar-based sensor to operate in an environment with vegetation cover for detection and discrimination of small-sized invisible dielectric and metallic objects. This sensor constitutes a vehicle-housed emergency system for surveillance of areas with vegetation ahead on the path of a moving vehicle to prevent its contact with hidden objects. The emergency system f... View full abstract»

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  • Multi-resolution multiple-model target tracking based on model-mixing

    Publication Year: 2000, Page(s):81 - 86
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    In this paper, a new multi-resolution multiple-model algorithm based on model mixing is proposed. The algorithm combines the advantages of the multi-resolution multiple-model algorithm with that of the interacting multiple model algorithm, thus it outperforms both algorithms View full abstract»

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  • Space-time adaptive processing (STAP) for wide-band airborne radar

    Publication Year: 2000, Page(s):620 - 625
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    STAP is a technique used to reject clutter returns in airborne phased array radar systems. This paper presents an investigation of the performance of STAP in wideband scenarios. It is shown that, under these circumstances, narrowband STAP is often sufficient for clutter rejection with sideways looking arrays, but that a wideband STAP architecture is needed to reject mainlobe jamming and/or to achi... View full abstract»

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  • Fiber-optic network architectures for on-board radar and avionics signal distribution

    Publication Year: 2000, Page(s):545 - 550
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    Future avionics systems will require high-bandwidth on-board communication links that are lightweight, immune to electromagnetic interference, and highly reliable. Fiber optic communication technology can meet all these challenges in a cost-effective manner. Recent advances in fiber optic technology, especially wavelength division multiplexing (WDM), have opened a number of possibilities for desig... View full abstract»

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  • Multifrequency radar signals

    Publication Year: 2000, Page(s):683 - 688
    Cited by:  Papers (26)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    A multifrequency radar signal is considered. It employs M subcarriers simultaneously. The subcarriers are phase modulated by different sequences that constitute a complementary set. Such a set can be constructed, for example, from the M cyclic shifts of a perfect phase-coded sequence of length M (e.g., P4). The subcarriers are separated by the inverse of the duration of a phase element by yielding... View full abstract»

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  • An evaluation and the optimum threshold for radar return signal applied for a mutual information

    Publication Year: 2000, Page(s):226 - 230
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    This paper proposes a new evaluation method using mutual information for radar return signals. It is shown that there is an optimum threshold level for detecting a radar target in the received signal due to the maximization of the mutual information applied to the evaluation method View full abstract»

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  • Model-based range extent for feature aided tracking

    Publication Year: 2000, Page(s):166 - 171
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The military is interested in tracking ground-based moving targets from standoff distances for national security and protection of assets. Air reconnaissance platforms, under normal conditions, operate at standoff distances translating to depression angles of less than 15 degrees. At these low depression angles, simple range extent models may be derived from the two-dimensional size of the target.... View full abstract»

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  • A climatology-based model for long-term prediction of radar beam refraction

    Publication Year: 2000, Page(s):359 - 364
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    Hitherto, radar beam bending has been predicted using four-thirds Earth or standard atmosphere. A new and more accurate model has been developed using a mix of ray tracing and climatology. Usually a microwave beam traveling through the atmosphere bends towards the Earth with a radius of curvature greater than the Earth's surface. However, seasonal and climatic variations influence the amount and d... View full abstract»

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  • Project Jindalee: from bare bones to operational OTHR

    Publication Year: 2000, Page(s):825 - 830
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    Project Jindalee officially started in April 1974 as a DSTO project based on over the horizon radar (OTHR) developments made by the USA. Over the years it has progressively evolved to the level of performance where it currently serves a hybrid operational/developmental role. Because of the success of Jindalee, the Jindalee Operational Radar Network (JORN) was conceived and in 1991 the Australian D... View full abstract»

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  • HF surface wave radar management techniques applied to surface craft detection

    Publication Year: 2000, Page(s):110 - 115
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    HF radar is a unique land or ship based sensor which provides over the horizon (OTH) target detection. In the absence of microwave ducting, which is not a reliable environmental feature, HF radar operating in the 3-30 MHz band offers the primary method of obtaining target returns from beyond the conventional radar horizon. Two alternative approaches are employed utilising different primary propaga... View full abstract»

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  • A variable γ H filter for a maneuvering target tracking using acceleration estimation

    Publication Year: 2000, Page(s):76 - 80
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The Kalman filter and its applications have been employed for tracking systems. A non-maneuvering target can be accurately tracked by using a Kalman filter with a constant velocity model. However, a maneuvering target might be mis-tracked since prediction errors increase significantly. The H filter is a robust filter and changes its characteristics depending on the parameter &gam... View full abstract»

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  • Space-time adaptive radar detection of distributed targets

    Publication Year: 2000, Page(s):614 - 619
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    This paper deals with radar detection of spatially distributed targets embedded in Gaussian noise with unknown covariance matrix. Precisely, noise returns are modeled as Gaussian vectors independent from range gate to range gate; they share the structure of the covariance matrix, but have possibly different power levels. A set of secondary data, free of signal components, is used to estimate the c... View full abstract»

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  • Analysis of envelope detected mean level CFAR processors using importance sampling

    Publication Year: 2000, Page(s):758 - 762
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    Importance sampling is applied to the analysis of mean level CFAR processors. It is shown that, in contrast to density modifications such as increased variance employed to estimate tail probabilities in conventional importance sampling, in the CFAR case the variance of the random variables comprising the adaptive threshold need to be reduced. Two schemes for implementing this concept are analysed.... View full abstract»

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  • Experimental study of VHF propagation in forested environment and modelling techniques

    Publication Year: 2000, Page(s):539 - 544
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    Measurements are carried out to study different aspects of the propagation of VHF radiowaves in a forested environment. In order to model the evolution of the spatial average of the received signal inside and outside the vegetation we find that good agreement can be obtained with the following method: in the forested areas, the actual Earth ground is replaced by the top of the canopy to compute th... View full abstract»

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  • A novel approach to the burn-through range-theory and applications

    Publication Year: 2000, Page(s):47 - 52
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The radar angle tracking loop is analyzed using the mean time to loss of lock (MTLL) criterion. This choice of performance criterion enables us to gain a completely new, meaningful engineering insight into the problem of burn-through range (BTR), and to demonstrate exactly how an increase in the target manoeuvring is equivalent to an increase in the jamming power. For a given scenario, the true BT... View full abstract»

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  • Forward scattering radar moving object coordinate measurement

    Publication Year: 2000, Page(s):678 - 682
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The unique features of a forward scattering radar system have been emphasized in some publications. One of the basic problems of implementation of a forward scattering radar system is the problem of moving object trajectory parameter measurement. Methods of this problem solution have been discussed. The comparative analysis of different versions of a bistatic forward scattering radar structure dem... View full abstract»

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  • Solid state, high PRF radar modulators

    Publication Year: 2000, Page(s):183 - 186
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Hundreds of radar systems in operation today utilize tetrodes or thyratrons/PFN for high PRF (pulse repetition frequency) pulse modulation. These vacuum tube modulators are expensive to maintain, and their relatively short lifetimes constitute a significant operational expense. Diversified Technologies Incorporated (DTI) of Bedford, Massachussetts, has recently built high voltage, high PRF, solid ... View full abstract»

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  • Algorithm and new structure for radar sliding MTD

    Publication Year: 2000, Page(s):223 - 225
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    Moving target detection (MTD) is a high-performance signal processing approach for pulse Doppler radar. High-performance radar calls for sliding MTD (SMTD). Traditional SMTD processing massively increases computational load, resulting in difficulty of implementation. A modified moving DFT algorithm and a new SMTD structure are proposed in this paper. The new SMTD structure adopts both batch-mode s... View full abstract»

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  • Land cover classification from SAR/IFSAR imagery

    Publication Year: 2000, Page(s):160 - 165
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    In the next few years, there will be a substantial increase in the number of commercial space-based and airborne synthetic aperture radar (SAR) systems and three-dimensional SAR systems (interferometric SAR: IFSAR). This will result in affordable, new types of data that can be used to complement other sensor systems, e.g., LandSat, SPOT, and in some cases, solve serious data collection deficiencie... View full abstract»

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  • The performance of cell-averaging CFAR systems in sea clutter

    Publication Year: 2000, Page(s):398 - 403
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    This paper explores the performance of cell-averaging CFAR (CA-CFAR) detectors in sea clutter, using the compound K-distribution clutter model. The first section provides a brief introduction to the compound K-distribution model. This is followed by a description of the CA-CFAR configuration being investigated and a definition of CFAR loss. The definition of ideal CFAR performance is given to prov... View full abstract»

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