Download Shareware and Freeware Software for Windows, Linux, Macintosh, PDA

line Home  |  About Us  |  Link To Us  |  FAQ  |  Contact

Serving Software Downloads in 956 Categories, Downloaded 49.593.961 Times

Seismic Signals freeware
Filter: All | Freeware | Demo
 

Seismic Signals

< 1 2 3 4 5 
Added: September 04, 2013 | Visits: 457

Silence removal in speech signals This is a simple method for silence removal and segmentation of audio streams that contain speech. The method is based in two simple audio features (signal energy and spectral centroid). As long as the feature sequences are extracted, as thresholding approach is applied on those sequence, in...



Platforms: Matlab

License: Freeware Size: 983.04 KB Download (42): Silence removal in speech signals Download

Added: May 14, 2013 | Visits: 303

Graphical convolution animation Shows graphically the various stages of discrete convolution for any two 1-D signals.This is for educational purposes really so the screens are optimized for signals of a few samples. Between two stages the figure pauses and requires the user to strike a key to continue. This should allow...





Platforms: Matlab

License: Freeware Size: 10 KB Download (39): Graphical convolution animation Download

Added: July 31, 2013 | Visits: 627

Empirical Mode Decomposition 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

License: Freeware Size: 10 KB Download (42): Empirical Mode Decomposition Download

PPT slide for Chapter 4 of 4.1 DEFINITION OF THE -TRANSFORM4.2 PROPERTIES OF THE -TRANSFORM4.3 THE INVERSE -TRANSFORM 4.3.1 Inverse -transform by Partial Fraction Expansion 4.3.2 Inverse -transform by Long Division4.4 ANALYSIS OF LTI SYSTEMS USING THE -TRANSFORM4.5 GEOMETRIC EVALUATION OF THE -TRANSFORM4.6 THE -TRANSFORM...


Platforms: Matlab


Added: March 22, 2013 | Visits: 486

Bluetooth Hop Selection Scheme The simulation shows how the frequency hopping occur in bluetooth 79-hop system connection state (according to BLUETOOTH SPECIFICATION Version 1.1).Using the control signals (device address, clock). The simulink shows the effect of changing both the device address and clock phase on the output...


Platforms: Matlab

License: Freeware Size: 276.48 KB Download (41): Bluetooth Hop Selection Scheme Download

Added: July 03, 2013 | Visits: 440

Antenna Pointing Loss Blocks Communication signals can be attenuated at the receive antenna if there is a misalignment between the transmit and receive antenna. This can be either a static misalignment or a time varying misalignment, like when an antenna is mounted on a tower that sways in the wind.Communications signals can...


Platforms: Matlab

License: Freeware Size: 256 KB Download (42): Antenna Pointing Loss Blocks Download

Added: July 18, 2013 | Visits: 496

M-QAM Modem Demo These files just to simulate or demo M-QAM modem in case BER, channel model, signals in t and f domain.Overal proses from bit insertion at modulator to bit estimated in demodulator. We can see the change of signal in each block diagram.


Platforms: Matlab

License: Freeware Size: 92.16 KB Download (42): M-QAM Modem Demo Download

Added: August 19, 2013 | Visits: 435

Walsh Functions The function waslh_func.m computes the Walsh Function of order n and length mExample:[W,t]=walsh_func(1000,5);Results:W is the Walsh function of order 5 and lenght 1000t is equal to linspace(-0.5,0.5,1000);I follow the description of Walsh Functions given inGermain Castellanos dodalvaro...


Platforms: Matlab

License: Freeware Size: 10 KB Download (41): Walsh Functions Download

Added: April 07, 2013 | Visits: 343

Time-domain scrambling of audio signals These routines scramble an audio file by moving around short, overlapping windows within a local window. They can be used to create new versions of existing recordings that preserve the spectral content over longer time scales, but remove structure at shorter timescales. This can be useful e.g....


Platforms: Matlab

License: Freeware Size: 163.84 KB Download (38): Time-domain scrambling of audio signals Download

Added: July 25, 2013 | Visits: 414

Buffering and taking the mean of the buffer contents This could be very useful model when used in signal processing. I have implemented this to filter the disturbances in my ADC signals in my programming and it works good.


Platforms: Matlab

License: Freeware Size: 10 KB Download (42): Buffering and taking the mean of the buffer contents Download

Added: September 12, 2013 | Visits: 627

Generation of filtered BPSK with different pulse shaping This program generates filtered BPSK with proper pulse shaping filters such as ideal Nyquist, Raised cosine, Square root raised cosine and Gaussian filters. Determine the power spectrum of filtered BPSK signals.


Platforms: Matlab

License: Freeware Size: 10 KB Download (42): Generation of filtered BPSK with different pulse shaping Download

Added: June 01, 2013 | Visits: 479

Singular Spectrum Analysis smoother SSA generates a trayectory matrix from the original series by sliding a window of length L. The trayectory matrix is aproximated using Singular Value Decomposition. The last step reconstructs the series from the aproximated trayectory matrix. The SSA applications include smoothing, filtering, and...


Platforms: Matlab

License: Freeware Size: 10 KB Download (48): Singular Spectrum Analysis smoother Download

Added: July 21, 2013 | Visits: 355

Versatile Modulator This GUI has been thought to be a templete for new projects that required signal manipulation.GUI manipulate files. Those files must be created by the digital signal processor, and should contain the signals of the more relevant points of the systems.Exists a function that works as interface...


Platforms: Matlab

License: Freeware Size: 225.28 KB Download (40): Versatile Modulator Download

Added: June 18, 2013 | Visits: 414

FFT accelerated surface analysis tools package This package consist of a number of auxiliary functions that are helpful for analysing 1D and 2D signals such as surface profiles and surfaces and images. They are all built upon the built-in MATLAB FFT routine for fast execution and they replicate (when it is existing) the result produced by...


Platforms: Matlab

License: Freeware Size: 10 KB Download (41): FFT accelerated surface analysis tools package Download

Added: June 15, 2013 | Visits: 546

Image Compression Using Wavelets Image compression using wavelet transform *wavelet transform give better information about non-stationary signals in time domain


Platforms: Matlab

License: Freeware Size: 10 KB Download (43): Image Compression Using Wavelets Download

Added: August 28, 2013 | Visits: 574

MATLAB for Digital Communication CHAPTER 1: FOURIER ANALYSIS1.1 CONTINUOUS-TIME FOURIER SERIES (CTFS)1.2 PROPERTIES OF CTFS 1.2.1 Time-Shifting Property 1.2.2 Frequency-Shifting Property 1.2.3 Modulation Property1.3 CONTINUOUS-TIME FOURIER TRANSFORM (CTFT)1.4 PROPERTIES OF CTFT 1.4.1 Linearity 1.4.2 Conjugate Symmetry 1.4.3 Real...


Platforms: Matlab

License: Freeware Size: 143.36 KB Download (46): MATLAB for Digital Communication Download

Added: March 24, 2013 | Visits: 670

Fourier Analysis of a Rectangular Pulse Finding the Fourier transform of a rectangular pulse..filtering the spectrum and regenerating the signal usingthe filtered spectrum is done...at the end Rayleigh theorem is proved by showing that the energy content of both time domain and frequency domain signals are equal..your comments are...


Platforms: Matlab

License: Freeware Size: 215.04 KB Download (41): Fourier Analysis of a Rectangular Pulse Download

Added: March 28, 2013 | Visits: 493

Fast Gaussian Filtering A recursive implementation of the Gaussian filter. This implementation yields an infinite impulse response filter that has 6 MADDs per dimension independent of the value of sigma in the Gaussian kernel.Recursive Gabor filtering for 1D and 2D signals. For more information please...


Platforms: Matlab

License: Freeware Size: 10 KB Download (44): Fast Gaussian Filtering Download

Added: April 19, 2013 | Visits: 461

Demonstration of Fourier transformation These are two M-files d-deDUfourier1d-deDt and d-deDUfourier2d-deDt The first is designed to demonstrate how triangular, rectangular, saw tooth, half wave and full wave rectified signals can be built from superposition of a predefined no of Fourier harmonic terms. It demonstrates how increasing...


Platforms: Matlab

License: Freeware Size: 10 KB Download (39): Demonstration of Fourier transformation Download

Blind detection of the number of sources with a predicted eigenvalue approach Let us assume the signal model:Y(k)=HX(k)+B(k)This script provides a method for the blind recognition of the number of sources (the size of X(k)). The noise must be spatially white and the number of receivers is assumed to be stricly greater than the number of sources. See reference [CHE91] Chen....


Platforms: Matlab


< 1 2 3 4 5