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Top Source Codes

SOURCE coding

A CODE is a rule for converting a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type. In communications and information processing, ENcoding is the process by which inform...
  Matlab        C     

An Improved SPIHT Algorithm Based on Wavelet Coefficient Blocks for Image coding

An improved set partition in hierarchical trees (SPIHT) algorithm based on wavelet coefficient blocks is presented for image coding. According to the algorithm characteristic of traditional SPIHT that scanning once can process four wavelet coefficients, our approach is to divide the wavelet tra...
  Matlab        Matlab     

huffman coding

Matlab code which describes source encoding technique . Source coding techniques are two types huffmann coding and shannon fano coding. This matlab code describes huffmann coding in the ascending order ...
  Matlab        Matlab     

LDPC decoding MATLAB programs

LDPC decoding MATLAB program BP decoding algorithm with MATLAB simulation of LDPC decoding, decoding using classic BP decoding algorithm,...
  Matlab        Matlab     

Multi-user MIMO precoding

This code provides a detailed description of the multi-user downlink bit error rate, for beginners, and a very good reference, if code do not quite understand, of course, you can take a look at some of the relevant literature, some basic elements for understanding, and then look at the code that can...
  Algorithm        C     

Common coding

UTF-8,GB2312,GB decodes the encoded data, and decrypts the encrypted data, some commonly used encoding and decoding, and so on. UTF-8 encoding becomes 3 bytes, and GB2312 and GBK encoding into 2 bytes....
  CSharp        C#     

Simulation of MIMO precoding under

In a 2X2MIMO system simulation in different encoding performance, including ZF coding, MF precoding, MMSE-coding, and correspond to the ZF,MF,MMSE filter, under the Gaussian channel, get a BER simulation....
  Matlab        Matlab     

Linear predictive coding CODE

Linear predictive coding(LPC) is a digital method for analysis of an analog signal in which a particular value is predicted by a linear function of the past values of the signal. At a particular time, t, the speech sample s(t) is represented as a linear sum of the p previous samples. The most import...
  Matlab        Matlab     

speech coding simple code

speach coding and it a simple code for lpc coding in speach coding and i will uesd puls cod modulation to transmited the erro signall...
  Matlab        Matlab     

matlab program for JPEG coding

The aim of the most common mode of JPEG is to provide the best possible quality at a given compression ratio. Therefore the original data must be brought into a suitable form allowing to differentiate between important (relevant) and less important (irrelevant) contents. The JPEG...
  Matlab        Matlab     

Tail-biting Convolutional coding, punching simulation

Using MATLAB with Convolutional coding and decoding process, realization of tail-biting Convolutional codes, punching capabilities. Main tip is: How to get initial state of the encoder is in a tail-biting How to calculate the length of punch At the end how to decode decoder c...
  Matlab        Matlab     

space time coding

Space time coding for mimo oriented program Orthogonal frequency division multiplexing (OFDM) is considered the leading candidate for high data rate transmissions of 4-th generation mobile systems, especially in downlink. The main reason for this is the relatively simple receive...
  Matlab        Matlab     

bch source code for encoding and decoding

Bose Chaudhari Hocquegham is a type of block code .It is used for the purpose of encoding and decoding using certain algorithms .The code we introduced is Encoder/Decoder for a (31,21,5) binary BCH code....
  Linux programming        C     

Dictionary(coding, decoding, insert, remove)

Description of tasks: 1. The set of words of a dictionary ( dictionary contains the meaning of the words in the source language and the target language ) used to set the transfer in the form of a list. 2 . The task must perform the following operations : A) coding : the creation of a list of word...
  book        Java     

convolutuion encoding and viterbi decoding

 Viterbi decoder V3.0.1 This package provides encoders and fast Viterbi decoders for the NASA standard rate 1/2 and rate 1/3 constraint length 7 convolutional codes. Two versions of these encoder and decoder are provided, one for blocked data (with user specified initial and termi...
  dsp        C     

Huffman Decoding

This is the project for decoding huffman tree with java. The decoding procedure is deceptively simple. Starting with the first bit in the stream, one then uses successive bits from the stream to determine whether to go left or right in the decoding tree. When we reach a leaf...
  Algorithm        Java     

2013 HEVC video coding standard source code

HEVC is considered not only improving image quality, also reached H.264/MPEG-4 AVC twice times Compression rate (Same as under the same picture quality Bit rate Reduced 50%) to support 4 k resolution Even to Ultra high definition TV ,最高 Resolution Up to 8192x4320 (8K resolution). HEVC/H.265 vi...
  video        C     

Huffman coding

Huffman coding is a data compression technology, using a binary tree and two priority queue data structure. Its philosophy is that recoding data per character, the length of the cord and its frequency is inversely related, there is a number of shorter character encoding. So as to achieve the purpose...
  Algorithm        Java     

CDMA encoding and decoding for coax

CDMA encoding and decoding matlab files for coax cable using PN sequence. the outputt is taken on simulator. ...
  Matlab        Matlab     

Encoding and decoding of Turbo codes, WuYuFei

Modified program for full decoding of Turbo codes program, channel for the AWGN channel, Log Map decoding algorithm and SOVA algorithm in two, will get to choose, is a component program of Turbo codes, hope to be helpful!...
  Matlab        Matlab     

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