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Radar, Sonar and Navigation, IEE Proceedings -

Issue 1 • Date Feb 2001

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Displaying Results 1 - 7 of 7
  • Tomographic imaging of isolated ground surfaces using radio ground waves and conjugate gradient methods

    Publication Year: 2001 , Page(s): 27 - 34
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (904 KB)  

    The ground surface of the Earth is usually mapped using microwave radar, and in particular synthetic aperture radar. A different technique is presented for the imaging of isolated ground surfaces, which may range from the order of a metre to a few kilometres in diameter, using radiowaves generated from antennas on the ground surface of the Earth. The technique is first formulated using groundwave ... View full abstract»

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  • Comparative study of five LMS-based adaptive time delay estimators

    Publication Year: 2001 , Page(s): 9 - 15
    Cited by:  Papers (3)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (584 KB)  

    A number of adaptive algorithms have been proposed to model the delay between signals received at two spatially separated sensors using an FIR filter. Among them, there are the LMSTDE, CTDE, ETDE, SETDE and ETDGE, which are computationally efficient because of the LMS implementation. These five methods are compared in terms of estimation accuracy and computational complexity. It is proved that the... View full abstract»

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  • Contextual information in SAR target detection

    Publication Year: 2001 , Page(s): 41 - 47
    Cited by:  Papers (5)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (932 KB)  

    Established target detection schemes make a statistical decision as to whether the value of a test pixel is more likely to have arisen due to the presence of a target or of clutter. Subject to prior probabilities for the occurrence of targets or clutter. However, such schemes do not take into account the contextual information which is available. For example, it will be known that military vehicle... View full abstract»

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  • Pseudo-linear estimator for bearings-only passive target tracking

    Publication Year: 2001 , Page(s): 16 - 22
    Cited by:  Papers (10)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (424 KB)  

    The pseudo-linear extended Kalman tracking filter previously developed for passive target tracking using bearings-only measurements required the use of a null target state vector as an initial estimate to obtain convergence for all types of scenarios. The pseudo-linear estimator is projected in such a way that it does not require any initial estimate at all and at the same time offers all the feat... View full abstract»

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  • Communication structure planning for multisensor detection systems

    Publication Year: 2001 , Page(s): 2 - 8
    Cited by:  Papers (14)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (552 KB)  

    The authors address the problem of communication structure planning in multisensor detection systems under communication constraints and also under a generalised cost formulation. The communication constraint is specified in terms of the amount of communication allowed in the system, while the generalised cost functions measure the efficiency of communication used. System optimisation algorithms a... View full abstract»

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  • Extraction of moving ground targets by a bistatic ultra-wideband SAR

    Publication Year: 2001 , Page(s): 35 - 40
    Cited by:  Papers (5)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (488 KB)  

    The use of a bistatic antenna configuration for ground moving target indication in an ultra-wideband and widebeam synthetic aperture radar system is discussed. To suppress the strong clutter signal the radar channels have a strict requirement on equality. In a bistatic system they are not equal, and the author investigates how to compensate for the bistatic configuration. Bistatic effects on clutt... View full abstract»

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  • Efficient algorithm for localising 3-D narrowband multiple sources

    Publication Year: 2001 , Page(s): 23 - 26
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (316 KB)  

    The authors propose an efficient 3-D source localisation algorithm using three uniform linear subarrays. The proposed algorithm replaces the 3-D search required in conventional 3-D MUSIC with three 1D searches, and thus reduces the computational burden. An estimate of the 1-D incident angle obtained from a subarray under the far field assumption satisfies the nonlinear algebraic equation of the tr... View full abstract»

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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.

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