White noise

Part 1 book "Fundamentals of communication systems" includes content: Introduction, signals and linear systems, amplitude modulation, angle modulation, probability and random processes, effect of noise on analog communcation systems, analog to digital conversion, digital modulation methods in an additive white gaussian noise channel.

505p muasambanhan06 03-02-2024 6 2   Download

Lecture Digital image processing - Chapter 5: Image restoration provide students with content about: concept of image restoration; white noise (white random process); image degradation with additive noise; band reject filters; harmonic and contraharmonic filters; order-statistics filters;... Please refer to the detailed lecture content!

65p diepkhinhchau 18-09-2023 6 4   Download

To investigate how county and state-level estimates of Medicaid enrollment among the total, non-Hispanic White, non-Hispanic Black or African American, and Hispanic or Latino/a population are affected by Differential Privacy (DP), where statistical noise is added to the public decennial US census data to protect individual privacy.

7p vigamora 25-05-2023 7 2   Download

Lecture Data communications and computer networks: A business user's approach (8E) - Chapter 6. After reading this chapter, you should be able to: identify the different types of noise commonly found in computer networks; specify the different error-prevention techniques, and be able to apply an error-prevention technique to a type of noise; compare the different error-detection techniques in terms of efficiency and efficacy;... Please refer to the content of document.

61p tieuvulinhhoa 22-09-2022 14 5   Download

This is HSK Standard Course 6上 (Textbook): Part 2, which includes 8 lessons: Lesson 12: 我们都爱白噪音 We all love white noise; Lesson 13: 从旅游指南看世事变迁 How travel guides reflect the changes of the world; Lesson 14: 背着电饭锅拍北极 Photographing the North Pole carrying an electric cooker on the back; Lesson 15: 山脉上的雕刻 Sculptures on the mountain range; Lesson 16: 徐健和他的野生动物摄影师们 Xu Jian and his team of wildlife photographers; Lesson 17: 小动物眼中的慢世界 The slow world in small animals’ eyes; Lesson 18: 神奇的丝瓜 The magical towel gourd; Lesson 19: 无阳光的深海世界 The deep sea without sunshine; Lesson 20: 金鸡窝 The golden henhouse...

122p runordie6 05-08-2022 10 4   Download

In this paper, the complex conductivity including all Landau levels is calculated in a layered superconductor under magnetic field in the vortex liquid phase by using TDGL approach with thermal fluctuations modelled by the Langevin white noise. We obtain an expression summing all Landau levels in an explicit form. The rest of the paper is organized as follows. In section 2, the Lawrence-Donich model in its time dependent form is briefly recalled and the main assumptions are specified.

8p runordie3 27-06-2022 17 2   Download

The paper has proposed an adaptive filter using particle swarm optimization algorithm (PSO) and its application to cancelled white noise. This is a new method to obtain signals with higher quality than previous adaptive filter methods such as Least Mean Squares (LMS) filter, Normalized Least Mean Square method (NLMS).

3p viericschmid 12-01-2022 8 0   Download

Consider a stochastic evolution equation containing Stratonovich-multiplicative white noise of the form ( , ) du Au f t u u W dt     where the partial differential operator A is positive definite, self-adjoint with a discrete spectrum; and the nonlinear part f satisfies the Lipschitz condition with  belonging to an admissible function space. We prove the existence of a (stochastic) inertial manifold for the solutions to the above equation. Our method relies on the Lyapunov-Perron equation in a combination with the admissibility of function spaces.

16p trinhthamhodang1218 18-03-2021 9 2   Download

Propose the global – local mean square error criterion (GLOMSEC) for Gaussian equivalent linearization method (GEL) for randomly excited MDOF nonlinear system subjected to white noise or color noise excitation. The mean square of response solution will be concentrated to evaluate the accuracy of the proposed criterion by comparison with exact solution or other accepted solutions.

28p capheviahe26 25-01-2021 10 3   Download

The paper shows that the approximate solution of the Van der PolDuffing system with time delay subjected to the white noise can be found by the second order stochastic averaging method. The stochastic system with time delay is transformed into the stochastic non-delay equation in Ito sense in accordance with the hypothesis that there are some slowly varying processes. Then the higher order stochastic averaging method is artfully applied to find the stationary probability density function for the system. The analytical results are verified by numerical simulation results.

11p trinhthamhodang9 10-12-2020 17 1   Download

The following will be discussed in this chapter: Matched filtering for detecting known signal in white Gaussian noise, matched filter performance, Q(.) function for area in Gaussian tail, matched filter properties, on-off signaling in noise, antipodal signaling,...

9p nanhankhuoctai3 25-05-2020 12 1   Download

In this paper, model of optical state truncation of two cavity modes are analysed. The Kerr nonlinear coupler with two of them pumped by external classical fields, which is assumed to be decomposed into two parts: A coherent part and a white noise.

6p visamurai2711 23-07-2019 14 0   Download

Transceiver system based on N-PSM using PSWF and Hermite has been implemented in MATLAB and compared in this paper. Performance evaluation of the N-PSM is carried out over Additive White Gaussian Noise (AWGN) channel for different values of N to measure Bit Error Rate (BER). It has been found that a combination of PSWF and Hermite pulses can be used for highspeed modulation if these pulses are orthogonal to each other since both the types of pulses achieve same bit error rate over AWGN.

6p blossom162 31-03-2019 24 0   Download

This paper presents a simulation based study of a wireless communication system with the implementation of secured asymmetric RSA cryptographic encryption/decryption algorithm on text message transmission. The system under investigation incorporates 2/3-rated CRC channel coding and QPSK digital modulation over an additive white Gaussian noise (AWGN) channel. For tackling the security problems a text message is first RSA encrypted at the transmitter while it is decrypted at the receiver end and compared for different levels of SNR.

6p byphasse043256 21-03-2019 26 0   Download

The solution of a random semilinear hyperbolic system with singular initial data is sought as a random Colombeau distribution. The product of 2 additive white noises is well tackled within the theory of random Colombeau distributions. In the special case of a random predator–prey system, the exact Colombeau solution is obtained under some assumptions when the process is driven by doubly reflected Brownian motions.

13p tuongvidanh 06-01-2019 27 1   Download

In the paper a technique for determining the coefficients of the linearized equivalent equation based on the Fokker-Piank equation approach is presented. The investigation is then applied to Duffing and Vanderpol oscillations under a zero mean Gaussian white noise.

6p chikychiky 01-11-2018 18 2   Download

The paper presents the estimation of the exact exceedance prob ability (EEP) of stationary responses of some white noise-randomly excited nonlinear systems whose exact probability density function can be known.

13p chikychiky 26-10-2018 27 0   Download

The paper presents a design of an active massspring-inverted pendulum DVA for the inverted pendulum type structure in case the external force is white noise process. The design is based on the optimum passive DVA as carried out in [4] and apply the optimum control force by minimizing the performance index.

7p thienthanquydu 23-10-2018 36 0   Download

In this paper responses of beams subjected to random loading are analyzed by the dual approach of the equivalent linearization method. The external random loading is assumed to be a space-wise and time-wise white noise in which the exact solutions of the modal equations can be found.

14p thienthanquydu 23-10-2018 31 0   Download

For many years the higher order stochastic averaging method has been widely used for investigating nonlinear systems subject to white and coloured noises to predict approximately the response of the systems. In the paper the method is further developed for two-degree-of-freedom systems subjected to white noise excitation. Application to Duffing oscillator is considered.

10p thienthanquydu 21-10-2018 27 1   Download