If members of a suite of sensors from which fusion is to be carried out are not colocated, it is unreasonable to assume that they share a common resolution cell grid; this is generally ignored in the data fusion community. We explore the effects of such "noncoincidence", and we find that what at first seems to be a problem can in fact be exploited. The idea is that a target is known to be confined to an intersection of overlapping resolution cells, and this overlap is generally small. We examine noncoincidence from two viewpoints: tracking and detection. With respect to tracking our analysis is first static, by which is meant that we establish the decrease in measurement error; and then dynamic, meaning that the overall effect in the tracking problem is quantified. The detection viewpoint considers noncoincidence as it has impact on a predetection fusion system. Specifically, the role of the fusion rule is examined, and the use of noncoincidence to improve detection performance (rather than that of tracking) is explored.


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    Title :

    Predetection fusion: resolution cell grid effects


    Contributors:
    Rago, C. (author) / Willett, P. (author) / Alford, M. (author)


    Publication date :

    1999-07-01


    Size :

    467545 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    The Case for Like-Sensor Predetection Fusion

    Willett, P. | Online Contents | 1994


    The case for like-sensor predetection fusion

    Willett, P. / Alford, M. / Vannicola, V. | IEEE | 1994