与L(f) 定义类似,SA(f) 定义为一个 AM调制边带中的噪声功率除以总信号功率,单位为 dBc/Hz。 AM噪声在相位噪声测量中起着重要作用,因为它会影响相位噪声测量的精度。此处所示的示例表明,虽然 AM噪声通常被认为小于相位噪声,但在某些偏移频率下,AM噪声可能等于甚至超过相位噪声值。LO...
SA(f) - 用功率谱密度来描述调幅噪声 与L(f) 定义类似,SA(f) 定义为一个 AM调制边带中的噪声功率除以总信号功率,单位为 dBc/Hz。AM噪声在相位噪声测量中起着重要作用,因为它会影响相位噪声测量的精度。 此处所示的示例表明,虽然 AM噪声通常被认为小于相位噪声,但在某些偏移频率下,AM噪声可能等于甚至超过相位...
我们一般在振荡器(Oscillator)中讨论相位噪声(Phase Noise)。 1.相位噪声的基本概念 理想情况下,振荡器产生的信号为 $$V(t) = A\cos (2\pi f + \varphi ) % MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUf…
Noise floor of a residual phase noise measurement; Technique for AM cancellation at the phase detector level; Discussion on the source of AM noise and its reduction; Conclusions.CibielGillesRegisMyrianneTournierEricLlopisOliverIEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control...
The probability of noise-induced phase inconsistencies is obtained as a function of the signal-to-noise ratio. Moreover, a two-dimensional noise-residue filter, intended to be applied as a preprocessing step before phase unwrapping, is proposed. The method is based on the observation that the ...
This paper presents a low-cost solution for the evaluation of frequency-domain phase noise characteristics for analog/IF signals. The technique is based on 1-bit signal acquisition with a standard digital channel of an Automated Test Equipment (ATE) and a dedicated post-processing algorithm that ...
We show how the location and lateral extent of the associated seismic source is period- and phase-dependent. This information is crucial for the use of body waves for ambient noise imaging and gives insights about the sea state, complementary to satellite data....
The use of advanced noise reduction methods can give a more accurate determination of the dispersed phase transportation time delay and then its velocity, as well as other parameters of the flow. The considered procedure is also of high importance in other fields of science and technology, e.g...
www.nature.com/scientificreports OPEN Switching Correlation and Noise Level in Pr3+:YSO Crystal via Dressing Nonlinear Phase received: 27 July 2015 accepted: 24 August 2016 Published: 21 September 2016 Irfan Ahmed1,2, Zhaoyang Zhang1, Feng Wen1, Da Zhang1, Changbiao Li1, Ruimin...
23 and 39 GHz low phase noise monosection InAs/InP (113)B quantum dots mode-locked lasers. T hiam, T. Batte, et al., "23 and 39 GHz low phase noise monosection InAs/InP (113)B quantum dots mode-locked lasers," Optics Express, vol. ... Klaime,Calò,Piron,... - 《Optics ...