Optimization of coherent detection technology for inter-satellite tracking

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| 2005年 / Chinese Optical Society, Xi'an, China卷 / 34期
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The mathematical model of coherent detection for inter-satellite tracking is rebuilt under Gaussian approximation. The intermediate frequency current from a detector as a function of a beam mismatched angle is calculated under this model which can get a smaller error compared with the one under plate wave approximation. The expression of the intermediate frequency current is simplified by choosing a right ratio between the detector diameter and the beam diameter, which can improve the calculation efficiency.
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