Detect Signal
Simple lockfile to detect previous instances script implements a simple lockfile to ensure that only one instance of an application is alive at any given time.
Platforms: Windows, Mac, *nix, Python, BSD Solaris
License: Freeware | Download (57): Simple lockfile to detect previous instances Download |
OFDM is considered the strongest candidate (if not the only) for the coming 4G technology, here i present a simulation that helps to fully understand the generation,transmission and reception of an ofdm signal, but without showing the channel noise or the HPA effects for simplification purpose.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): OFDM signal generation, transmission and reception Download |
1.random input data generation2.symbol mapping3.16-QAM modulation4.ofdm signal generation
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): OFDM SIGNAL FOR IEEE 802.11 a SPECIFICATIONS Download |
MATLAB is a software environment and programming language with over 1,000,000 users and is used to generate arbitrary and standard waveforms, configure and control instruments, build automated test applications, and analyze and visualize data from other instruments. MATLAB only supports...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Generating Waveforms on Agilent MXG, ESG, PSG Signal Sources using MATLAB Download |
Current direct sequence code division multiple access (DS-CDMA) system suffer from Multiple access interference (MAI) and Inter symbol interference (ISI) due to the frequency selective channel. This interference can be avoided by use of Adaptive Beamforming. There are two different minimum...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (43): PERFORMANCE ANALYSIS OF SYMBOL/CHIP BASED MINIMUM Download |
This entry provides functions and examples allowing you to create Simulink.TsArray and Simulink.TimeSeries objects from a script or the MATLAB command line. A Simulink.TsArray object can be used as input data for a bus signal input in Simulink.Note: These functions contain **UNDOCUMENTED**...
Platforms: Matlab
License: Freeware | Size: 40.96 KB | Download (44): Example: Creating TimeSeries and TsArray Inputs for Simulink Bus Signal Input Data Download |
This ZIP-file contains the demonstration files used during the "Analog and Mixed-Signal Circuit Modeling with Simulink Product Family" webinar presented on June 22, 2004.
Platforms: Matlab
License: Freeware | Size: 143.36 KB | Download (56): Analog and Mixed-Signal Circuit Modeling with Simulink Product Family Webinar Files Download |
random_band is the main program and it outputs a test signal which has a constant level. The instanatenous frequency varies randomly within the specified Nth octave band range.The program outputs three plots: time record of the instantaneous frequency, time record of the instantaneous level, and...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (46): Rohde & Schwarz FSQ Signal Analyzers Download |
toobox_signal - signal processing related functions.This toolbox contains functions related to image processing, including* images loading and generation.* filtering and blurring functions.* anisotropic and spacially variant filters.* non-linear filtering (median, LIC, bilateral).* High Dynamic...
Platforms: Matlab
License: Freeware | Size: 3.14 MB | Download (51): Toolbox signal Download |
A signal object (an object of class "signal") is a set of data in an one dimensional array, combined with information about its sample rate, starting time and other useful infos. A number of methods makes it easy to generate and modify signals."signal" is used and tested for considerable time in...
Platforms: Matlab
License: Freeware | Size: 81.92 KB | Download (51): Generic Signal Class Download |
We present some basic programs written for the MATLAB environment for the analysis of optical and acoustic data and for signal processing. These programs exploit novel concept derived from a theoretical physics approach. These programs can be easily customized by the expert user, but they...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): Tools for Data Analysis in Optics, Acoustics, Signal Processing Download |
Frequency response signal analyzer for linear and non-linear control loops and dynamic systems. Simulink model. Sine sweep based similar to dynamic signal analyzers for physical systems. User specifies: freq limits, freq decrement, averages, phase criteria for moving to next frequency, start...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): Dynamic Signal Analyzer Download |
Let r_scale be the neighborhood radius scale, a brute search method would require N*r_scale to detect the valleys with neighborhood size of r_scale in 1d signal or N*r_scale*r_scale complexity in 2d image. Which is too slow in large data size. In this file, the complexity is reduced in...
Platforms: Matlab
License: Freeware | Size: 30.72 KB | Download (45): Efficient local minima detector Download |
random_band is the main program and it outputs a test signal which has a constant level. The instanatenous frequency varies randomly within the specified Nth octave band range.The program outputs three plots: time record of the instantaneous frequency, time record of the instantaneous level, and...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 30.72 KB | Download (47): Nth Octave Test Signal Download |
A very easy symbolic method for reduction of block diagrams or signal flow graphs with Matlab is presented. The method can be applied to every kind of diagram and it is possible to obtain in one stage all transfer functions for a given input. The method is validated with some examples, including...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 122.88 KB | Download (44): Symbolic reduction of block diagrams and signal flow graphs Download |
%DVBS2Constellation Signal Constellations taken from ETSI EN 302 307% [CONSTELLATION, BITMAPPING] = DVBS2Constellation(MODSCHEME,GAMMA)% returns the constellation points and the bit mapping specified in the DVB-S2% Standard ETSI EN 302 307. The output vector CONSTELLATION contains the%...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 122.88 KB | Download (46): DVB-S2 - Getting Signal Constellations and Bit Mappings Download |
Tapers start and end samples of a given signal for a fade-in and fade-out effect. Fade-in and fade-out durations can be independently controlled. Custom tapering window can be specified also.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (39): Fade Signal Download |
the m-file helps you o understand the generatio,transmission and reception of an ofdm signal, and also shows the effect of the channel noise and the HPA on the ofdm signal.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (43): OFDM signal generation, transmission and reception in a noisy channel Download |
This function Calculates Power Spectral Density of signal vector X using Welch's averaged periodogram method.X is divided into sections, then windowed by the WINDOW parameter.The magnitude squared of the length NFFT DFTs of the sections are averaged to form Pxx. Pxx is length NFFT/2+1 for NFFT...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (44): Calculate PSD of a signal using Welch algorithm Download |
The "Dynamic Signal Analyzer 34411A" program turns the following Agilent DMMs into Dynamic signal analyzers: 34411A, 34410A, and the L4411A.The program sets up the DMMs as digitizers, fetches the readings, and performs an FFT on the readings. The FFT is plotted with dBV on the y axis and...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): Dynamic Signal Analyzer 34411A Download |