Additive Noise
The Additive Noise Channel and the Additive Guassian Noise Channel are the simplest of all signal channels.The script mimics any experiments on these channels.
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (47): Additive Noise Channel for Signal Processing Download |
The Additive Noise Channel and the Additive Guassian Noise Channel are the simplest of all signal channels.The script mimics any experiments on these channels. Requirements: - MATLAB 7.2 or higher
Platforms: Windows, Mac, *nix, Matlab, BSD Solaris
License: Freeware | Download (54): Additive Noise Channel Download |
This model uses the NLMS adaptive filtering algorithm to suppress additive noise. It does not require a reference noise signal. However, the noise should be such that the auto-correlation of the noise be close to zero for some lag greater than a certain number. This model implements the NLMS...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Noise Suppressor Using Adaptive Filters Download |
This script is intended to illustrate the concepts of eyediagramm, constellation, ISI and to understand the effects of additive noise power, channel frequency band restriction, number of possible states within a symbol period, affecting the quality of the transmission.Three methods are employed...
Platforms: Matlab
License: Freeware | Size: 51.2 KB | Download (46): Baseband numeric transmission Download |
In many practical signal processing problems, the objective is to estimate from measurements a set of constant parameters upon which the received signals depend.For example, high-resolution direction-of-arrival (DOA) estimation is important in many sensor systems such as radar, sonar, electronic...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Direction of Arrival Estimation with MUSIC Algorithm Download |
This script simulates an electromagnetic pulse, a spectral phase interferometry for direct electric field reconstruction (SPIDER) measurement and reconstruction and compares it to the true electric field in time in the presence of noise (additive, multiplicative, quantative and in the delay).Play...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): SPIDER simulation Download |
Suppose that you have a signal Y (Y can be a time series, a parametric surface or a volumetric data series) corrupted by a Gaussian noise with unknown variance. It is often of interest to know more about this variance. EVAR(Y) thus returns an estimated variance of the additive noise.EVAR provides...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Noise variance estimation Download |
BPSK SYSTEM SIMULATIONWe simulate the generation of random variables r0 and r1, which constitutes the input to detector. We begin by generating a binary sequence of 0?s and 1?s that occur with equal probability and are mutually (statistically) independent. For this, we use a Random number...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): BPSK Simulation for AWGN & Rayleigh Channels Download |
This program performs a Monte Carlo simulation of a coherent QPSK communication system and plot the error probability performance over additive whit Gaussian noise channel. The detection is based on correlation metric. Simulation is performed for 10,000 bits and measurements are made accordingly.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): Coherent QPSK simulation and BER vs. SNR curve Download |
Makes it easy to remove excessive noise in one easy-to-use tool! DE:Noise handles spurious frame-to-frame defects ranging from fine digital/electronic noise to blotchy spots (e.g. dirt on the film). DE:Noise combines motion estimation techniques with feature-sensitive, edge-preserving spatial...
Platforms: Mac
License: Freeware | Size: 4.3 MB | Download (462): DE:Noise for Mac OS Download |
Analog Noise is a VST format plug-in which will add not only the sound, but also the atmosphere of analog recordings to all your mixes. The purpose of the plug-in is to add sounds typically found in the recordings of existing devices.
For this goal, Analog Noise has 21 sound profiles, including...
Platforms: Windows, Windows Vista, 7
License: Freeware | Download (654): Analog Noise Download |
Noise Explorer was specially designed as a small and handy utility that allows you to test the different properties of 1D and 2D Perlin Nose.
This Java-based tool also allows you to use different basis functions and colorings. The tool is very useful for designing procedural textures, terrains...
Platforms: Windows
License: Freeware | Download (575): Noise Explorer Download |
Free MSU VQMT plugin for noise level estimation. It includes implementation of three most popular algorithms for measurement of noise level. By results of job of the metrics the plot of frame-accurate value of noise level is constructed. Final value of the metrics is average arithmetic of all...
Platforms: Windows
License: Freeware | Size: 70 KB | Download (46): MSU Noise Estimator Download |
White Noise Lite for Mac provides ambient sounds of the environment to help you relax or sleep. Do you find yourself waking up in the middle of the night? Are you in a hotel and miss the familiar sound of your fan? Need a full screen digital clock on your nightstand? Includes high quality looping...
Platforms: Mac
License: Freeware | Size: 4.3 MB | Download (59): White Noise Lite Download |
Digital noise or Image noise is the most common issue faced by photographs as it makes photos look grainy. Usually a photo clicked in low light conditions or with not so good camera have tiny dots making image look grainy and distorted. This problem can be resolved with Noise Reducer Pro.
Noise...
Platforms: Windows, Windows 8, Windows 7, Windows Server
License: Freeware | Size: 2.07 MB | Download (74): Noise Reducer Pro Download |
Noise Fun is a fun tool to generate human sounds such as laughter, coughing, giggling or even belching sounds. You do not share the opinion of a colleague? Then comment on his point of view by adding a funny sound. Better be careful, not everyone understands that sort of fun! ;-) Microsoft .NET...
Platforms: Windows
License: Freeware | Size: 1.08 MB | Download (564): Noise Fun Download |
A simple utility to generate random noise in RGB or grayscale. Noise Maker saves the generated noise file(s) to PNG format.
Platforms: Mac
License: Freeware | Download (118): Noise Maker Download |
The two-step noise reduction (TSNR) technique removes the annoying reverberation effect while maintaining the benefits of the decision-directed approach. However, classic short-time noise reduction techniques, including TSNR, introduce harmonic distortion in the enhanced speech. To overcome this...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (56): Wiener filter for Noise Reduction and speech enhancement Download |
Unlike all other posted DTMF programs, my application is specifically designed to simulate the working of a real DSP processor especially for beginners.That would mean that digital oscillator was used to create sine and cosine functions and signal is passed through 8 filters. The signal is...
Platforms: Matlab
License: Freeware | Size: 40.96 KB | Download (44): DTMF Filtering and Noise Simulator Download |
LLR_DEMOD LLR Demodulator H = LLR_DEMOD_MEX(CONSTELLATION, MAPPING, METHOD) constructs a LLR demodulator object H for a given constellation, mapping and noise variance. The vectors CONSTELLATION and MAPPING are usually generated by using MATLAB Modem Modulation Modem. and contain the complex or...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): Calculation of LLR values with variable noise variance Download |