Research of the noise influence on software phase-locked loop dynamic performance

Bobalo, Yuriy; Bondariev, Andriy; Altunin, Serhiy; Kiselychnyk, Myroslav; Maksymiv, Ivan

doi:10.1109/tcset.2018.8336416

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…1970年数字锁相环(DPLL)随之问世 [2] ; 近些年, 在成熟的锁相环集成电路技术推动下, 能够实时跟踪外部参考信号进行微弱信号测量的集成锁相放大器微系统 [12] . 通过对2023年市面上典型的锁相放大器产品性能指标等信息进行汇总 [13][14][15][16][17][18][19][20][21] 为了给出近些年锁相放大器的研究与应用概貌, 本文借助CiteSpace聚类分析技术 [22] , 以锁相放大器及其直接关联的两大关键词("锁相环"与 "信号幅度")进行知网中近40年已发表文献的关据查, 1998年开始有虚拟锁相放大器的报道 [23] ,…”

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Research progress of lock-in amplifiers

Guo,

Li,

et al. 2023

Acta Phys. Sin.

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The lock-in amplifier can perform high-precision measurement in both time and amplitude dimensions, so that it becomes a key component of instrumental system for precision measurement and control. This article overviews the concept, technology, and application of phase-locked amplifiers as a guide. It first explains the development and evolution of phase-locked amplifiers of analog, digital, and virtual phase-locked amplifiers, demonstrating their relationship and differences. Then, it classifies phase-locked amplifiers from a mathematical perspective based on the order and type of phase-locked loops. Subsequently, the testing process and metrological calibration progress of the main performance of phase-locked amplifiers, such as amplitude, frequency, and phase noise, are introduced. The conversion relationship between key indicators such as phase noise, time-domain jitter, Allen variance, and the coupling relationship with amplitude noise are discussed. Finally, the application forms and effects of phase-locked amplifiers in the fields of spectral enhancement, impedance analysis, magnetic measurement, microscopic imaging, and space exploration are listed. Through some new applications, the prospects of their transition from scientific instruments to industrial and even civilian products through intelligent computing, precise IoT, and other means are briefly given.

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