电子科学技术
電子科學技術
전자과학기술
Electronic Science & Technology
2015年
1期
39-42
,共4页
极化合成跟踪%相位估计误差%信噪比%解调
極化閤成跟蹤%相位估計誤差%信譟比%解調
겁화합성근종%상위고계오차%신조비%해조
Polarization tracking%Phase estimation error%Signal-to-Noise ratio%Demodulation
本文针对双圆极化合成跟踪线极化信号，分析了相位估计误差对合成跟踪线极化信号信噪比的影响，推导了信噪比的概率密度函数及对接收端解调性能的影响。仿真结果表明，本文理论分析结果和仿真结果吻合，可以作为通信系统链路预算时合成损失分析的理论依据。
本文針對雙圓極化閤成跟蹤線極化信號，分析瞭相位估計誤差對閤成跟蹤線極化信號信譟比的影響，推導瞭信譟比的概率密度函數及對接收耑解調性能的影響。倣真結果錶明，本文理論分析結果和倣真結果吻閤，可以作為通信繫統鏈路預算時閤成損失分析的理論依據。
본문침대쌍원겁화합성근종선겁화신호，분석료상위고계오차대합성근종선겁화신호신조비적영향，추도료신조비적개솔밀도함수급대접수단해조성능적영향。방진결과표명，본문이론분석결과화방진결과문합，가이작위통신계통련로예산시합성손실분석적이론의거。
For the scenario that the linear-polarized wave is combined by two circular-polarized waves, the impact of the phase estimation error is studied. The distribution of the combined signal-to-noise ratio (SNR) is derived, and then the demodulation performance is obtained. Simulation results are shown fitting the theory analysis very well, which demonstrates the effectiveness and serviceability of the theory analysis when analyzing the combination gain loss for the link budget.
