ORIGINAL NEPHOGRAM DEMODULATOR OF FY-B SATELLITE
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摘要: 介绍了风云二号B星原始云图QPSK解调器的原理及其实现.通过使用判决反馈环和可编程比特同步等多项技术,解调器达到快速捕捉、宽捕捉带宽和低误码率的要求.Abstract: Theory and realization of FY-2 B satellite original nephogram demodulator is introduced in this paper. By using Decision-feedback loop and programmable bit synchronizer, the demodulator has the advantage of quick lock, wide lock band and low bit error rate. This device has already been field tested and now using in CDAS Satellite station.
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