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IEEE Transactions on Wireless Communications, 2010
In this article we examine the effect of phase noise on a multi-antenna beamforming system. The effect is quantified in terms of error vector magnitude (EVM). It is shown that using independent phase noise sources improves EVM performance in the main lobe.
Thomas Hähne, Ville Ranki
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In this article we examine the effect of phase noise on a multi-antenna beamforming system. The effect is quantified in terms of error vector magnitude (EVM). It is shown that using independent phase noise sources improves EVM performance in the main lobe.
Thomas Hähne, Ville Ranki
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Phase noise suppression in MIMO OFDM systems with incoherent phase noise
2011 - MILCOM 2011 Military Communications Conference, 2011This paper presents a remedy to the phase noise problem in the multiple-input/multiple-output (MIMO), orthogonal frequency division multiplexing (OFDM) systems with incoherent phase noise. The phase noise incoherence (PNI) is a common condition that arises when different channels in a MIMO system use different local oscillator (LO) signals. Phase noise
Babak Daneshrad, Weijun Zhu
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Phase noise in oscillators: DAEs and colored noise sources
1998 IEEE/ACM International Conference on Computer-Aided Design. Digest of Technical Papers (IEEE Cat. No.98CB36287), 1998Oscillators are key components of electronic systems. Undesired perturbations, i.e. noise, in practical electronic systems adversely affect the spectral and timing properties of oscillators resulting in phase noise, which is a key performance limiting factor, being a major contributor to bit-error-rate (BER) of RF communication systems, and creating ...
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1995
A new derivation of the canonical description of optical phase is given, and it is shown that any covariant method of phase estimation (such as heterodyne phase detection) may be interpreted as a noisy measurement of canonical phase. An important example is Gaussian noise, and it is demonstrated that phase-based communication is relatively robust with ...
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A new derivation of the canonical description of optical phase is given, and it is shown that any covariant method of phase estimation (such as heterodyne phase detection) may be interpreted as a noisy measurement of canonical phase. An important example is Gaussian noise, and it is demonstrated that phase-based communication is relatively robust with ...
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Electronic simulation of phase noise
European Transactions on Telecommunications, 1995AbstractTheoretical considerations show how to simulate lorentzian shaped phase noise of optical or microwave carrier signals by means of bandlimited noise frequency modulation. An experimental setup is presented which realizes the predicted behaviour concerning spectral bandwidth and shape.
Dieter Kreß, Olaf Ziemann, Ralf Dietzel
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Noise Induced Phase Transitions
1996Models of macroscopic systems with an infinite number of microscopic degrees of freedom perturbed by external noise can undergo sharp phase transitions which are however modified or even induced by the external noise. These non-equilibrium phase transitions exhibit the features characteristic of equilibrium phase transitions such as symmetry breaking ...
Parrondo, J.M.R., van den Broeck, C.
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The effect of noise propagation on phase noise in ring oscillators
2008 IEEE International Symposium on Circuits and Systems (ISCAS), 2008The assumption that the white noise sources independently affect the phase noise and jitter in ring oscillators is revisited. Propagation of jitter originating from a noise source around the ring oscillator loop and its effect on phase noise are quantified.
Sohrab Samadian, Michael M. Green
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Noise-induced phase synchronization enhanced by dichotomic noise
Physical Review E, 2001We study the nonlinear response of a stochastic bistable system driven by both a weak periodic signal and a dichotomic noise in terms of stochastic phase synchronization. We show that the effect of noise-induced phase synchronization can be significantly enhanced by the addition of a dichotomic noise.
R, Rozenfeld +3 more
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Noise reducing phase retrieval
Applied Optics, 2015In the context of imaging using the Hanbury Brown-Twiss effect, this paper describes a phase retrieval algorithm capable of producing high-quality images despite large amounts of noise in the coherence magnitude measurement data. Previously the problem was conceived as two distinct steps: coherence magnitude estimation, followed by image construction ...
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Phase noise in digital frequency dividers
IEEE Journal of Solid-State Circuits, 2004This paper presents a physical derivation of phase noise in source-coupled-logic frequency dividers. This analysis takes into account both white and flicker noise sources and is verified on two 32/33 dual-modulus prescalers integrated in a 0.35-/spl mu/m CMOS process. Design techniques for high-speed and low-noise operation are provided.
LEVANTINO, SALVATORE +4 more
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