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A new design of a laser warning receiver is proposed. We use grating diffraction method to distinguish the incidence laser from background sun light. In this paper, the laser warning receiver is designed based on DSP. The principle of the instrument is introduced. The instrument consists of DSP peripheral module, signal sampling module and display module. The three modules circuits are described....
There is an exigent request on remote sensing images in timeliness and season for land use. We choose three packs of SPOT5 remote sensing images in different temporal in this examination of automatic classification by computer. With the annotation on the spot, we statistic the relative square error during classification, fit the regression relationship between classification error and temporal as...
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