We study how additive noise influences noise-induced nonequilibrium phase transitions. The review of the most recent results and a discussion about open questions is presented. We show that additive noise strongly influences a noise-induced phase transition. We demonstrate also that additive noise can induce such a transition by itself. It can occur both via the excitation of noise-induced osci...

We discuss intrinsic noise effects in stochastic multiplicative-noise partial differential equations, which are qualitatively independent of the noise interpretation (Itô vs Stratonovich), in particular in the context of noise-induced ordering phase transitions. We study a model which, contrary to all cases known so far, exhibits such ordering transitions when the noise is interpreted not only ...

In this paper, a comparative study of noise on different components of the phase look loop (PLL) is described. Noise effect the all the components of the phase lock loop such as loop filter characteristics, phase-frequency detector, and phase noise of the open-loop voltage-controlled oscillator (VCO). All the components of PLL contribute to the noise of the system. We present the different appr...

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Phase noise is a property of an oscillator that can extend in magnitude from the carrier of several volts down to a mere nano-volt far from the carrier. In many cases the lowest noise OCXOs, SAWs and other specialty oscillators have carrier to noise ratios in excess of -180 dBc/√Hz. The noise level of these oscillators often extends below that of even the mixers and low noise amplifiers at base...

  Introduction: There are several technical features that make PET an ideal device for the noninvasive evaluation of cardiac physiology. Organ motion due to respiration is a major challenge in diagnostic imaging, especially in cardiac PET imaging. These motions reduce image quality by spreading the radiotracer activity over an increased volume, distorting apparent les...

Low-noise millimetre-wave signals are valuable for digital sampling systems, arbitrary waveform generation for ultra-wideband communications, and coherent radar systems. However, the phase noise of widely used conventional signal generators (SGs) will increase as the millimetre-wave frequency increases. Our goal has been to improve commercially available SGs so that they provide a low-phase-noi...