Qsqrt Snr
The MATLAB program simulates binary phase shift keying (BPSK) at baseband through Monte Carlo method. The goal is to simulate bit error rate (BER) over an additive white Gaussian noise (AWGN) channel. For realizing that, the effect of noise is represented in the baseband with Gaussian random...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): BER of BPSK in AWGN Channel Download |
In this file there are two m-files.One is function and other is program. So during running the program save both file in same folder.First open the function rect ,then and run the ber_QAM file. You will get the required result.Here simulation is performed for 10,000 symbols in the presence...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (42): BER vs. SNR plot for 8-ary QAM Download |
A number of rules of thumb exist for the advantages of non-coherent averaging, I wanted to see, in a fairly practical way, what the advantage really was. This turned out to be more complex than I thought, because you have to identify and implement separate parts to the equations for the output...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (42): SNR for Coherent and Non-Coherent Filtering 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 |
This program calculates BER curve against SNR for QPSK Modulation in Gaussian Environment.It calculates 100 errors for for each SNR value before calculating BER. This gives a good approximation of BER.I hope this will help students alot.Please feel free to contact me should anyone has any queries.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (48): BER Curve for QPSK in Gaussian Environment Download |
A uniform random number generator is used to generate the binary information sequence from the binary data source. The sequence of d-de?0d-deOaos and d-de?1d-deOaos is mapped into sequence of +E and d-deOCtEwhere E represents the signal energy. E may be normalized to unityThe Gaussian noise...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): BER vs. SNR of a binary antipodal communication system Download |
This file calculates BER for or a number of SNR values in Rayleigh Channel.Every BER value has been calculated for 100 errors for precision results.I hope script will help students.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (50): BER Curve for BPSK in Rayleigh Channel Download |
Calculate and plot BER curve against SNR for BPSK Modulation in Gaussian Environment.It calculates 100 errors to Calculate BER for every SNR value to ensure better approximation.I hope that this help students of signal processing and communications...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): BER Curve for BPSK in Gaussian Environmen Download |
This program demonstrate abilty of wavelets to denoise audio data as well its effectiveness on different type of signals at different SNR. I have tested this program on windows xp and MATLAB 6.1 it works perfectly
Platforms: Matlab
License: Freeware | Size: 225.28 KB | Download (47): Wavelets Based Denoising Download |
Fast Algorithm estimating the number of sinusoids in a white Gaussian noise. This algorithm use a sub-space method based on chi-square statistics of eigen values of the Autocorrelation Matrix.Example :clear, close all hiddenN = 512;L_vrai = 4;fe = 2000;F = (0:(fe/2)/(N/2-1):(fe/2));snr = [-10 -10...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): Number of sinusoids Estimator Download |
The AWGN Channel Block in the Communications Blockset lets you specify SNR in several ways, including Eb/No. Sometimes people want to use a more itemized way of specifying the SNR, like the itemization found in a link budget.These two models show how to create equivalent implementations of a...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Link Budgets with Communications Blockset Download |
This script calculates BER for a numebr of SNR values in gaussian environment for QAM 16 Modulation.It calculates 100 errors for each BER measuremnet for better results.I hope this will be helpful for students of signal processing and communications alike.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): BER Curve for QAM_16 in Gaussian Environment Download |
Takes two signal vectors as inputs and produces a mixture signal at a desired SNR level (dB). Includes various examples.
Platforms: Matlab
License: Freeware | Size: 911.36 KB | Download (46): Add Noise Download |
GPS::SpaceTrack is a package for calculating the position of GPS satellites. SYNOPSIS use GPS::SpaceTrack; my $obj=GPS::SpaceTrack->new(filename=>"gps.tle"); print join("t", qw{Count PRN ELEV Azim SNR USED}), "n"; foreach ($obj->getsatellitelist({lat=>38.870997, lon=>-77.05596})) { print...
Platforms: *nix
License: Freeware | Size: 52.22 KB | Download (117): GPS::SpaceTrack Download |
dvbshout takes an MPEG transport stream from a DVB card, extracts audio channels from stream, and sends the audio to an Icecast / Shoutcast server. It had only been tested with DVB-S, but should also work with DVB-C and DVB-T. Example run: ./dvbshout dvbshout.conf DVB card name: "Philips...
Platforms: *nix
License: Freeware | Size: 112.64 KB | Download (147): dvbshout Download |
The fullest directory (database) on bearings. Over 47000 names! The needle bearings, a shaking support, the unilateral radially-persistent bearing microbearings, tiny ball-bearings, Corrosion-proof ball-bearings...
Platforms: Windows
License: Freeware | Size: 4.04 MB | Download (54): All-bearings Download |
The zip file contains1. A 128x256 Regular (3,6) H matrix (if you need to simulate other codes, need to write your own code for generating those parity check matrices). The file '128x256regular_v6.mat' is for those using Matlab 6.5.2. Files for LDPC code simulation over the AWGN channel.3....
Platforms: Matlab
License: Freeware | Size: 81.92 KB | Download (51): LDPC Code Simulation 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 |
The comb pilot aided channel estimation in ofdm modulation is considered. The power of pilot subchannels is under the control.The data experience frequency selective channel then the AWGN noise is added to make the situation worse. The bit error rate is ploted versus SNR.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (48): OFDM LSE Channel Estimation Download |
This script simulates QPSK or 4-QAM modulation scheme in Rayleigh channel and compares it to theoretical limits.QPSK gives 3dB SNR degradation when compared to BPSK but twice as much throughput.I hope this will be helpful for students of wireless communication.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (52): BER Curve for QPSK in Rayleigh Channel Download |