Performance Analysis of MPSK Phase Detectors for Carrier Synchronization   PLLs at Low SNRs

doi:10.1109/LCOMM.2014.2363468

CORC > 北京大学 > 信息科学技术学院

	Performance Analysis of MPSK Phase Detectors for Carrier Synchronization PLLs at Low SNRs
	Jiang, Wei ; Cui, Yifei
刊名	ieee communications letters
	2014
关键词	Carrier synchronization equivalent noise variance low SNR linearized gain MPSK phase detector PLL
DOI	10.1109/LCOMM.2014.2363468
英文摘要	In this letter, we analyze the performance of a category of phase detectors (PDs) for carrier synchronization phase-locked loops (PLLs) in M-ary phase shift keying (MPSK) receivers working at low signal-to-noise ratios (SNRs). These PDs have the property that their outputs are functions of the inputs' phase only, and thus, their performance is independent of the automatic gain control (AGC) circuits. We deduce closed-form expressions about the linearized gain and equivalent noise variance of these PDs when SNR goes to zero and sum up simple approximate formulas for three typical PDs at all SNRs. We also prove that the modified Mth-power PD performs asymptotically best in this category of PDs as SNR goes to zero.; Telecommunications; SCI(E); EI; 0; ARTICLE; jiangwei@pku.edu.cn; cuiyifeipku@gmail.com; 12; 2133-2136; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151953]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Jiang, Wei,Cui, Yifei. Performance Analysis of MPSK Phase Detectors for Carrier Synchronization PLLs at Low SNRs[J]. ieee communications letters,2014.
APA	Jiang, Wei,&Cui, Yifei.(2014).Performance Analysis of MPSK Phase Detectors for Carrier Synchronization PLLs at Low SNRs.ieee communications letters.
MLA	Jiang, Wei,et al."Performance Analysis of MPSK Phase Detectors for Carrier Synchronization PLLs at Low SNRs".ieee communications letters (2014).