Software Downloads for "Versus Channel"

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..

  • Platform: Matlab, Scripts
  • Publisher: Hamid Ramezani
  • Date: 06-04-2013
  • Size: 10 KB

Multi-channel multi-tone audio frequency sinusoidal and noise signal generator is intended for adjusting and measuring parameters of audio equipment. Works with 16, 24 and 32 bit sound cards at sampling rate up to 384 kHz. WDM drivers support. Independent channels frequency and amplitude controls. Adjustable phase shift between channels. Up to eight oscillators per channel with separate frequency and level setting. A step of frequency setting is 0.00001 %; level - 0.001 dB; phase - 0.001 degree. The minimum coefficient of nonlinear and intermodulation distortion, precision, stability and range of frequency are limited only by quality of the used sound card.

Abyssmedia Multi-Channel Sound Recording System (MCRS) designed for recording audio infromation from multiple sources simultaneously and automatically. The sound recording software can record up to 16 channels and compress records for archiving. Voice Activation Mode and andvanced audio compression allows you to save free space on the hard drive. It can be used for Conference recordings, Telephone line monitoring, Radio station logging and Other specialized applications..

  • Platform: WinOther
  • Publisher: AbyssMedia.com
  • Date: 01-09-2012
  • Size: 1249 KB

Groovy, Funky Channel 27! The only CMS with a hologram developer! Channel 27 is a hierarchical page-centric CMS, with support for multiple users and user levels. A simple and very modular design means it is easy to extend and maintain..

  • Platform: PHP, Scripts
  • Publisher: Sam Wilson
  • Date: 07-06-2013
  • Size: 10 KB

Channel Mode Window Opener Script opens up a new window in channel mode, with the IE channel bar appearing on the left. The script is very easy to implement into your website design. It can be easily customized to suit your needs..

  • Platform: JavaScript, Scripts
  • Publisher: Dynamic Drive
  • Date: 05-01-2013
  • Size: 10 KB

This Simulink model simulates the entire transmission and reception of voice data of a traffic channel for GSM (TCH/FS)over a multipath fading channel, and it calculates the BER of the received signal..

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..

  • Platform: Matlab, Scripts
  • Publisher: Shah Gul Khan
  • Date: 03-04-2013
  • Size: 10 KB

The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts. The discrete input is convolved with a realization of the channel impulse response. This response can be one of 4 types (CM1, CM2, CM3 or CM4) described in the paper or a custom channel with user-defined parameters. Response terms that extend beyond one symbol period (ISI) are added to the output for the next symbol period.

I'm actually having trouble with the equalization of the channel, because the doppler effect introduces phase rotation, which I don't know how to correct. If anyone could help me, I' d be really thankful..

  • Platform: Matlab, Scripts
  • Publisher: Bertfm Fexas
  • Date: 22-02-2013
  • Size: 10 KB

Here is a simulation based proof highlighting the superiority of the MMSE[Min Mean Sq Error] channel estimator over the LS[Least Sq] estimator.The two parameters of evaluation turn out to be, quite logically, the SER[Symbol Error Rate] and the Mean Square Error.The channel is assumed to be g(t)=delta(t-0.5 Ts) delta(t-3.5 Ts) For more information on the theory and formulae used , please do refer to the paper On "Channel Estimation In OFDM systems" By Jan-Jaap van de Beek, Ove Edfors, Magnus Sandell, Sarah Kate wilson and Petr Ola Borjesson In proceedings Of VTC'95 Vol 2 pg.

  • Platform: Matlab, Scripts
  • Publisher: Vinay Prabhu
  • Date: 20-04-2013
  • Size: 10 KB

In this programe a highly scattered enviroment is considered. The Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after SVD decomposition) is distributed as water-filling algorithm The pdf of the matrix "lanada" ( V in SVD decomposition) elements is depicted too..

  • Platform: Matlab, Scripts
  • Publisher: Hamid Ramezani
  • Date: 25-01-2013
  • Size: 10 KB

As a part of package Simulink there is a communication channel model "Binary Symmetric Channel". There are random errors in this model. However errors normally are packages in real channels of communication and I have developed such model of a channel. I hope that my model will successfully complement a section Simulink Communication Blockset Channels ..

  • Platform: Matlab, Scripts
  • Publisher: Vlad Semenov
  • Date: 14-01-2013
  • Size: 113 KB

The programs compute the enthalpy versus composition diagram for ethanol-water binary system at 760mmHg and 76 mmHg. We also draw the tie lines and the conjugate line..

  • Platform: Matlab, Scripts
  • Publisher: Housam Binous
  • Date: 25-01-2013
  • Size: 31 KB

This code calculates BER values for 16-QAM in Rayleigh Channel. You can compare the BER plot with the theoretical values from MATLAB BER TOOL..

  • Platform: Matlab, Scripts
  • Publisher: Shah Gul Khan
  • Date: 23-06-2013
  • Size: 10 KB

The GUI application allows the user to enter the parameters of the Antoine equation and then plot vapour pressure of any chemical component versus temperature..

  • Platform: Matlab, Scripts
  • Publisher: Housam Binous
  • Date: 23-02-2013
  • Size: 10 KB

To walk through the code and for a thorough description, refer to A. Meucci, (2010) "Linear versus Compounded Returns: Common Pitfalls in Risk and Portfolio Management", Latest version of code and article available at http://symmys.com/node/141.

  • Platform: Matlab, Scripts
  • Publisher: Attilio Meucci
  • Date: 04-01-2013
  • Size: 10 KB

CM wav files are subjected to variable bit errors simulating serial transmission through a noisy channel..

  • Platform: Matlab, Scripts
  • Publisher: Jeremy Clark
  • Date: 11-03-2013
  • Size: 399 KB

8-PSK with Rs Coding in Rayleigh fading channel.

  • Platform: Matlab, Scripts
  • Publisher: SADAF KHAN
  • Date: 13-02-2013
  • Size: 10 KB

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..

  • Platform: Matlab, Scripts
  • Publisher: Ashwini Patankar
  • Date: 01-01-2013
  • Size: 20 KB

Microsoft Windows Media Audio 9 Professional Channel Mask Mapping Tool remaps the channel mask of a multichannel Windows Media surround-sound file to support different channel configurations.

The tool converts between traditional, home theater, and widescreen mapping in 4.0, 5.1 and 7.1 audio configurations.

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  • Platform: Windows
  • Publisher: Microsoft
  • Date:
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