Calculating Signal To Noise

Modem.pl is a small script that scrapes the web interface of a Motorola SURFboard cable modem for various status conditions like signal strength and signal to noise. The results are sent to STDOUT where they can be easily piped into a log file. The modem values are also checked for reasonable...

A common scenario... You're setting up your sound system and it's time to connect up the amplifiers. Where do you turn the knob on the amp? Hmm... 12 o'clock looks good. Well, believe it or not, there is actually a correct position to turn that knob to and it can be calculated.Enter GainSet......

we had generated a signal and the we generated a random noise and add it to the signal,,then my using the lms algorithm we tried to cancel the effect of the noise on the signal and have the original signal back pure as possible


Platforms: Matlab

Statistics::SDT Perl package contains signal detection theory measures of sensitivity and response-bias. SYNOPSIS use Statistics::SDT; $sdt = Statistics::SDT->new( { hits => 50, signal_trials => 50, false_alarms => 17, noise_trials => 25, correct => 2, } ); $d =...


Platforms: *nix

This simple simulation shows the implementation of FxLMS algorithm for a single channel feed-forward active noise control system. Here, the controller generates an "anti-noise" signal to result a destructive interference at the sensor position. The objective is to minimize the noise residue.The...


Platforms: Matlab

This simple simulation shows the implementation of FbLMS algorithm for a single channel feedback active noise control system. Here, the controller generates an "anti-noise" signal to result a destructive interference at the sensor position. The objective is to minimize the noise residue.FbLMS...


Platforms: Matlab

The Analysis & Reconstruction Sound Engine also known as ARSE, is a program that analyses a sound file into a spectrogram and is able to synthetise this spectrogram, or any other user-created image, back into a sound. The ARSE consists in two main parts, a spectrographer with a base-2...


Platforms: *nix

SigBrowser is a small tool to display large signals (up to 2 GB filesize / 1-6 channels / 16 bit integer). SigBrowser allows you to smoothly browse in a large signal. It can load 16 bit signed integer data with up to 6 interlaced channels. Unfortunately theres no large-file support, so the...


Platforms: *nix

This model is an 8-ary modulator/demodulator based on Pulse Amplitude Modulation (PAM).You can change the Eb/N0 parameter in the "AWGN Channel" block to see the effect of the channel noise on the demodulated signal while the simulation is running.The input is a sinusoid with a frequency of 1 Hz.


Platforms: Matlab

The Empirical Mode Decomposition is a technique to decompose a given signal into a set of elemental signals called Intrinsic Mode Functions. The Empirical Mode Decomposition is the base of the so-called d-deDUHilbert-Huang Transformd-deDt that comprises also a Hilbert Spectral Analysis and an...


Platforms: Matlab

Qucs is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can view the simulation results on a presentation page...


Platforms: *nix

wireless screenlet is used to show current status of your wireless device... it's showing signal quality in % and signal and noise level in dBm if you have some new ideas for improve I would like to hear it... leave comments :) note: If you want to vote bad, please let me know what you don't...


Platforms: *nix

Ourmon is a statistically oriented open-source network monitoring and anomaly detection system. It may also be viewed as a flow collection system. Ourmon is based on promiscuous mode packet collection on Ethernet interfaces and typically uses port mirroring via an Ethernet switch. A probe...


Platforms: *nix

retty project is a utlity that can attach to processes running on another terminal. This is useful, for example, when you run an application locally and then decide you want to use that running application from some remote location. You can run retty on it, do your work, and detach application...


Platforms: *nix

Close All Windows is a compact application designed to help you close all running applications with one click. It does not use system resources because it only sends close signal to all open windows on the desktop and goes out. Just place a shortcut to it in the Start Menu, Quick Launch or...


Platforms: Windows

This block generates a pulsed signal with assigned amplitude and variable frequency.You must connect the input to sinusoidal signal generator.The block provide convert the sinusoidal signal to quadratic output with amplitude and frequency variable.


Platforms: Matlab

CIP Audio Player is a cross-platform Java application which works on Linux, Windows and Mac OS X. The CIPAudioPlayer plays back PCM 16Bit/44.1kHz wav-files through the main speakers and center speaker by using different sound-mixer (sound-cards). As an example you could connect the main and...


Platforms: *nix

Eckbox is software designed to aid in a specific type of security testing against a spying attack known as van Eck Phreaking or TEMPEST. It involves picking up radiation leaking from an electronic device, such as a monitor, and interpreting the signal to recreate the data contained in the device....


Platforms: *nix

mpg123-mysql consists of some patches to mpg123 which make it support MySQL. This adds some bells and whistles, including rating support and playlist support. In addition to that, mpg123-mysql offers the following facilities: mpg123-mysql uses setproctitle(3) to show ps(1) which title it is...


Platforms: *nix

Eckbox is software designed to aid in a specific type of security testing against a spying attack known as van Eck Phreaking or TEMPEST. It involves picking up radiation leaking from an electronic device, such as a monitor, and interpreting the signal to recreate the data contained in the device....


Platforms: *nix