这里定义每个偏移频率为f,每个偏移频率对应的phase noise为L(f),载波(时钟)频率为fc,那么Jitter_rms则为: JitterRMS=2∫f0f110L(f)10df2πfc 以原文中这个计算结果,一步一步实现: Step1:求每个区域的积分 如上图Phase Noise和Offset Frequency的示意图,先求几个区域的PhaseNoise积分,纵轴的PhaseNoise是对数...
where f is the noise frequency. For example, white frequency noise (Sν(f) = const) corresponds to phase noise with a power spectral density proportional to f−2. In that case, the linewidth is π times the one-sided power spectral density of the frequency noise (or 2π times the tw...
the clock circuit in the link of producing frequency to be of vital importance.This article explains the composition and work principle of frequency synthesizer,analyzes the causes making the phase noise and circle noise appear in frequency synthesizer and gives the method of how to eliminate them....
High-frequency (3-30 MHz) operation of MIT systems offers advantages in terms of the larger induced signal amplitudes compared to systems operating in the low- or medium-frequency ranges. Signal distribution at HF, however, presents difficulties, in particular with isolation and phase stability. It...
Ferre-Pikal, "Measurement of frequency, phase noise and amplitude noise", Wiley Encyclopedia of Electrical and Electronics Engineering, vol. 12, pp. 459-473, June 1999.Wall, F.L., and Ferre-Pikal, E.: `Measurement of frequency, phase noise and amplitude noise' in `Wiley Encyclopedia of ...
These types of frequency deviations are intentionally increased, and their influence on the linearity and the IF-signal is investigated. The dependence of target range estimation accuracy on the frequency ramp nonlinearity, phase noise, spurious, and signal-to-noise ratio in the IF-signal are ...
Impairments like channel multipath, time varying phase noise (PHN) and carrier frequency offset (CFO) result in the loss of synchronization and diversity performance of cooperative communication systems. Joint estimation of these multiple impairments is necessary in order to correctly decode the received...
Say you have -150dB/Hz of phase noise. The 1st thing to do is to convert this to total integrated noise. I will assume the noise is flat across frequency and the clock frequency is 50 MHz. Also, assume an integration noise BW of 2*50 MHz = 100 MHz. In that case the total integr...
and the RF input.Figure 2illustrates the LO mixing with the noise of the mixer device. At the IF frequency where the measurement is made, a filter removes the main peak from the LO, but LO phase noise at the carrier frequency adds to the device noise that we are trying to characterize...
Phase Noise in Signal Sources 来自 Semantic Scholar 喜欢 0 阅读量: 424 作者: WP Robins 摘要: This book contains a thorough treatment of phase noise, its relationship to thermal noise and associated subjects such as frequency stability. The design of low phase noise signal sources, including ...