Software Listing: Decoding

Static Huffman Coding and Decoding, and Adaptive Huffman Coding and Decoding for text compression.

  • Platform: Matlab, Scripts

Implements soft-decision Viterbi decoding for a rate 3/4 code over an AWGN channel using Simulink. The Viterbi decoder block from the Communications Blockset is enhanced to optimally support punctured codes. The attached BERTool session file compares the BER performance as the number of bits are varied for the soft decision with the performance for unquantized inputs. The model file is set-up to support additional runs..

  • Platform: Matlab, Scripts

Basic Differential Encoding/Decoding of input vector of numeric values diffencodeve.m : Differential Encoding function diffdecodevec.m : Differential Decoding function diffencodevecTest.m : Test Program for Differential Encoding/Decoding..

  • Publisher: M Khan
  • Date: 21-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Arithmetic coding and decoding for Text Compression.

  • Platform: Matlab, Scripts

The Programme is about CDMA coding and decoding..

  • Platform: Matlab, Scripts

Colasoft Capsa is a professional network analyzer (aka. protocol analyzer & packet sniffer) that performs real-time packet capturing, 24/7 network monitoring, advanced protocol analyzing, in-depth packet decoding, and automatic expert diagnosing. By giving you insights into all of your network's operations, Capsa makes it easy to isolate and solve network problems, identify network bottleneck and bandwidth use, and detect network vulnerabilities. Network administrators can directly monitor http requests, email messages, DNS queries, as well as real-time activities and message details for the four most popular instant messengers: MSN, AIM, ICQ, and Yahoo Messenger.

  • Platform: Tablets, Win2000, Windows Server, Windows Vista, WinOther

DGMPGDec is a free MPEG2 Decoding Package The widely used tools DVD2AVI and MPEG2DEC suffer from a fundamental deficiency: they do not deliver all the coded frames from the input stream. Put simply, they lose frames. This can cause serious problems with audio sync and authoring with some tools. Not only that, but random frame access is not handled correctly and incorrect frames can be returned when navigating on the timeline via MPEG2DEC (and its clones). Additionally, the original DVD2AVI project was not updated in some time, and it stood in need of some fixes and upgrades. My version addresses a lot of the irritating features of the original project, as well as adds many new and useful features.

  • Platform: WinOther

Apollo started out as a MP3-player. It is recognized by its outstanding MP3 decoding quality, powerful continuous playback support and advanced playlist capabilities. It supports different file formats through so called input plug-ins. Writing an input plug-ins is rather straight forward (see the plug-ins page for more info) and thus Apollo can be easily made to support new audio formats. The player routines provide continuous playback or even a crossfade between tracks on all supported formats and with all output types (standard Wave Out, DirectSound and WAV file output). It is possible to direct the output into a WAV file, thus making it possible, for instance, to decode MP3s for writing them onto a CD.

  • Platform: WinOther

This software package was developed to supply a portable decoding package (written in C and callable by Fortran) compatible to some extent with ECMWF GRIBEX routine..

  • Platform: Linux, Unix

Pleiade is an LGPL audio/video decoding library optimized for embedded platforms. The library derives its name from the Pleiades star cluster..

  • Platform: WinOther

CVencode.m % function for CV encoding (arbitrary CV code) VAharddecode1.m % function for Viterbi hard decision decoding CVsimhard.m basic CV coding/decoding BERcurve_CV_hard.m computes simulated BER curve UTILITY FUNCTIONS getcodeparameters bin2deci deci2bin.

  • Publisher: B Gremont
  • Date: 10-03-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

OFDM Signal generation and decoding using QPSK as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. QAM4 and QPSK is same modulation technique. Just run the Model and with different SNRs in the Channel Block observe the performance of the OFDM. Please leave your feedback for the model so that we can improve it..

  • Platform: Matlab, Scripts

OFDM Signal generation and decoding using 64-QAM as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. Just run the Model and with different SNRs in the AWGN Channel Block observe the performance of the OFDM. Please leave your feedback for the model so that we can improve it..

  • Platform: Matlab, Scripts

Routines and functions used in encoding and decoding Reed-Solomon codes. Most importantly, an errors-and-erasures decoder based on the Massey-Berlekamp algorithm is included. For more information, see http://dept.ee.wits.ac.za/~versfeld/resear...rces/index.html.

  • Platform: Matlab, Scripts

Perform Viterbi Decoding to find the most likely path and probability of the sequence 'seq' for the system defined as follows: p is the initial state probability matrix A is the State transition matrix B is the Output matrix where possible outputs are mapped to integers 1,2,... 'end_prob' state is the final state - can be specified if required or omitted in which case the ending state is chosen as the most probable state Usage: seq=[1 1 1 2]; A=[.5 .4 .1;0 .7 .3;0 0 1]; p=[1 0 0]; B=[.8 .2;.6 .4; .1 .9]; end_state=3; [q P]=most_likely_viterbi(seq,p,A,B,end_state); This implementation is an improvement over similar implementations in MATLAB Central in that, the end state can be optionally specified.

  • Publisher: Suneesh
  • Date: 14-02-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

OFDM Signal generation and decoding using QPSK as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. QAM4 and QPSK is same modulation technique. Just run the Model and with different SNRs in the Channel Block observe the performance of the OFDM. Please leave your feedback for the model so that we can improve it. For use with R14.

  • Platform: Matlab, Scripts

Please help me with viterbi decoding.

  • Platform: Matlab, Scripts

Quadtree decomposition of RGB image of size M-by-N-by-3. Three thresholds for red,green and blue components are used. For any R or G or B block if the maximum value of the block elements minus the minimum value of the block elements is greater than its respective threshold then the RGB block is split into 4 blocks. For lossy encoding (individual) mean value R,G,B are assign to RGB block. Image is padded if its size is not power of 2, so that image can be divided until block of size 1. Thresholds are specified as a value between 0 and 1 (0 for lossless encoding). If Image is of type uint8 then threshold value is multiplied by 255, if Image is of type uint16 then threshold value is multiplied by 65535, to determine the actual threshold.

  • Platform: Matlab, Scripts

I write these two programs (i.e. Coding and Decoding) for simplify, the operation for the user by using just :- array of different data (i.e. characters, real numbers, negative and positive numbers, zeros...etc)..

  • Platform: Matlab, Scripts

My functuin contains:- 1- huffman coding 2- huffman decoding this program used for data compressin or coding.

  • Platform: Matlab, Scripts

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