| 相位噪声对PSK系统性能的影响 |
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| 引用本文： | 黄 慰. 相位噪声对PSK系统性能的影响[J]. 电讯技术, 2011, 51(7): 174-177. DOI: 10.3969/j.issn.1001-893x.2011.07.036 |
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| 作者姓名： | 黄 慰 |
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| 作者单位： | 中国西南电子技术研究所,成都,610036 |
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| 摘 要： | 在介绍相位噪声定义的基础上,分析了相移键控(PSK)接收系统的本振信号源相位噪声对误码率的影响.以QPSK调制方式为例,仿真了相位噪声对系统误码率影响,结果证明了接收系统中本振信号源相位噪声的重要性.以实际工程中使用的本振信号源为例,推导了相位噪声和信号抖动所导致的BPSK和QPSK接收系统信噪比的限制.理论分析与工程...
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| 关 键 词： | 相移键控(PSK) 接收系统 相位噪声 误码率 |
Effects of Phase Noise on the Performance of a PSK System |
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| HUANG Wei. Effects of Phase Noise on the Performance of a PSK System[J]. Telecommunication Engineering, 2011, 51(7): 174-177. DOI: 10.3969/j.issn.1001-893x.2011.07.036 |
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| Authors: | HUANG Wei |
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| Affiliation: | HUANG Wei(Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
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| Abstract: | According to the concept of phase noise, this paper analyses the effect of LO(Local Oscillator) signal source phase noise on bit error rate (BER) performance of a phase shift keying (PSK) communication system. A quadrature phase shift keying(QPSK) system example is used to predict the effect of phase noise on BER.Simulation results prove that the phase noise of LO is important in a receiver system.Taking the LO signal source used in engineering as example,the Signal-to-Noise Ratio(SNR) limitation of BPSK or QPSK receiver system due to phase noise and jitter is derived.The research has significance in engineering-oriented application of receiver system. |
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| Keywords: | phase shift keying (PSK) receiver system phase noise bit error rate |
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