A Method for Determining Positioning Accuracy of Optical Remote Sensing Satellite Images
A technology of satellite imagery and optical remote sensing, which is applied in the direction of measuring devices and instruments, and can solve the problem that the positioning accuracy cannot be quantified and designed
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[0022] Such as figure 1 As shown, the image positioning accuracy of the present invention is decomposed into time unified error A, orbit measurement error B, imaging pointing error, and satellite-ground integration processing error.
[0023] The time unified error A is decomposed into the time transmission part error, the time transmission error and the time reception part error. At present, the time transmission part error of the remote sensing satellites in China is determined according to the time accuracy of the GPS hardware and obtained during the stand-alone test; the time transmission error is the signal transmission chain The transmission delay generated by the channel is obtained during the whole satellite test; the partial error of the time reception is determined by the processing time required by the single machine to process the second pulse signal, and obtained through single machine test and theoretical analysis. According to the current development status of typical...
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