Laser communication is a potential broadband blog new shirts 2010 means of satellite communications, and the performance of APT affects succeeds or fails of the satellite laser communications directly. In APT system, laser spot image localization method with high-precision, fast and strong anti-noise is one of the key technologies of satellite laser cheap ralph lauren polo shirts communications.According to experiment result that we have got and laser spot signal distribution Lacoste Polo got by satellite communication test between Japanese and European, we have constructed the laser spot objective’s mathematic model: the target of 4 pixels×4 pixels in 128 pixels×128 pixels unsymmetry ralph lauren polo shirts spot image. And according to this model, we have comparing different localization method and macropixels method is proposed: it divides the spot image into macropixels and the macropixels Lacoste Polo Shirts whose grey level is maximal is chose as target region and iteration formula is used to compute centroid in the target region.
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