Noise-Induced Linearisation

نویسندگان

  • M I Dykman
  • D G Luchinsky
چکیده

It is found that the response of a nonlinear dynamical system can be linearised, and its frequency dispersion diminished, by the addition of external noise of sufficient intensity. Taking as an example an overdamped bistable system driven by a low-frequency periodic field, this noise-induced linearisation is investigated through analogue electronic experiments. The wider implications are considered. Permanent address: All Russian Institute for Metrological Service, Andreevskaya nab 2, 117965 Moscow, Russia. Present address: Department of Engineering, University of Warwick, Coventry, CV4 7AL, UK. 1 Published in Phys. Lett. A 193, 61-66 (1994)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

System Identification and Linearisation Using Genetic Algorithms with Simulated Annealing

This paper develops high performance system identification and linearisation techniques, using a genetic algorithm. The algorithm is fine tuned by simulated annealing, which yields a faster convergence and a more accurate search. This global search technique is used to identify the parameters of a system described by an ARMAX model in the presence of white noise and to approximate a nonlinear m...

متن کامل

Linearisation of Transmitter and Receiver Nonlinearities in Optical OFDM Transmission

In this paper, linearisation of transmitter and receiver nonlinearities of an optical Intensity Modulation/Direct Detection system using digital signal processing is presented and analysed. The system performance is estimated on basis of the signal-to-interference-and-noise ratio. Furthermore, the bit error performance of a linearised system is compared to a non-linearised one.

متن کامل

Efficient Linearisation of Sigma-Delta Modulators using Single-Bit Dither

Sigma-delta modulation, where a single-bit quantiser is embedded within a negative feedback loop (Fig. 1), is now a commonly-used technique for implementing high-resolution analogue-to-digital and digital-toanalogue converters (DACs), principally because of a favourable insensitivity to component tolerancing [1]. Single-bit quantisation generates relatively high levels of quantisation noise, he...

متن کامل

Noise-Induced Linearisation and Delinearisation

It is demonstrated, by means of analogue electronic simulation and theoretically, that external noise can markedly change the character of the response of a nonlinear system to a low-frequency periodic field. In general, noise of sufficient intensity linearises the response. For certain parameter ranges in particular cases, however, an increase in the noise intensity can sometime have the oppos...

متن کامل

An Efficient Linearisation Approach for Variational Perspective Shape from Shading

Recently, variational methods have become increasingly more popular for perspective shape from shading due to their robustness under noise and missing information. So far, however, due to the strong nonlinearity of the data term, existing numerical schemes for minimising the corresponding energy functionals were restricted to simple explicit schemes that require thousands or even millions of it...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015