By Topic

IEE Proceedings - Radar, Sonar and Navigation

Issue 3 • Jun 1994

Filter Results

Displaying Results 1 - 8 of 8
  • Fourth-order cumulant matrices for DOA estimation

    Publication Year: 1994, Page(s):144 - 148
    Cited by:  Papers (6)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (376 KB)

    A novel class of fourth-order cumulant matrices for direction-of-arrival (DOA) estimation is presented. The suitable adjustment of the components of the cumulant matrices makes it possible to preserve the structures which can be directly applied to the well developed algorithms such as MUSIC and ESPRIT and make these algorithms more applicable to DOA problems. By using the proposed cumulant matric... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Coherent processing of ultra-wideband radar signals

    Publication Year: 1994, Page(s):171 - 179
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (696 KB)

    An ultra-wideband radar (UWB radar) is defined as a radar with a large fractional bandwidth (typically, 100%) as opposed to a conventional radar which has small fractional bandwidth (typically much less than 5%). Clarification is given of issues surrounding use of ultra-wideband signals in a coherent surveillance radar and processing algorithms are proposed. The author has chosen to do this in a d... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Description of radar targets using the bispectrum

    Publication Year: 1994, Page(s):159 - 163
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (292 KB)

    The bispectral signatures of backscattered radar signals are examined. An interpretation of these signatures in terms of multiple scattering interactions is presented. A high-resolution bispectral-estimation technique is used to resolve nearly located target scattering centres View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • VHF antenna array processing: high accuracy direction finding and performance evaluation with real data

    Publication Year: 1994, Page(s):137 - 143
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (464 KB)

    The authors present a description of practical data processing techniques that have been used for direction finding (DF) with a real array. The measured data were collected using a DF trial `test-bed', which was developed at DREO and is based on digital beamforming (DBF) technology. The system transmitters are used to simulate a complex signal environment and can be operated at a continuum of freq... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • DOA estimation method for unknown noise fields

    Publication Year: 1994, Page(s):149 - 150
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (136 KB)

    In the paper by Rajagopal and Ramakrishna (see IEE Proc. F, Radar Signal Process., vol.138, no.5, p.495-501, 1991) a matrix decomposition method (MDM) for direction-of-arrival (DOA) estimation in an unknown noise field is presented. A solution to this array signal processing problem is derived. In this paper the authors state that the MDM used in the above paper is a variant of MUSIC (see Johnson ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimum detection of moderately fluctuating radar targets

    Publication Year: 1994, Page(s):164 - 170
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB)

    The problem of the detection of radar targets with Gaussian statistics and with an assigned autocorrelation function is considered. The pertaining optimum detector is analysed and is found to be equivalent to a weighted sum of the squared moduli of the outputs of a bank of filters. A closed form expression for the false alarm and detection probabilities is used to compute the detection performance... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measurement preprocessing approach for target tracking in a cluttered environment

    Publication Year: 1994, Page(s):151 - 158
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (544 KB)

    The paper presents a novel measurement preprocessing technique to enhance the performance of conventional Kalman-filter-based tracking algorithms. Received measurements are preprocessed, based on a maximum-likelihood estimation approach. Simulation results show the superior performance of this approach both in clean and cluttered environments View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parameter identifiability problem in signal processing

    Publication Year: 1994, Page(s):133 - 136
    Cited by:  Papers (9)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    The authors give a broader perspective on the problem addressed by Choate and Tsui (1993). The parameter identifiability analysis in that paper is significantly simplified and extended. In addition, it is pointed out that the `new' Prony's method discussed in that paper is nothing but the well-known forward-backward Prony's approach View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEE Proceedings Radar, Sonar and Navigation covers the theory and practice of systems involving the processing of signals for radar, radio location, radio navigation and surveillance purposes.

Full Aims & Scope