Earth Observation Satellites by Hao Chen & Shuang Peng & Chun Du & Jun Li

Author:Hao Chen & Shuang Peng & Chun Du & Jun Li
Language: eng
Format: epub
ISBN: 9789819935659
Publisher: Springer Nature Singapore

Target matching is the first phase of similarity matching used to estimate the similarity between two targets with the same priority. The similarity between two targets can be determined by checking if they have the same priority and if their spatial locations are close to each other. It is argued that targets with different priorities cannot be considered similar. For targets with the same priority, their spatial locations are analyzed to determine their similarity. Thus, similarity between point targets, between a point target and an area target, and between area targets is addressed and will be introduced, respectively.

An intuitive idea to determine whether two targets are similar in spatial location is to use a distance metric. For two point targets with the same priority , we use the Manhattan distance to define the distance between two point targets as follows:

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