Search results
Results from the WOW.Com Content Network
The code-rate is hence a real number. A low code-rate close to zero implies a strong code that uses many redundant bits to achieve a good performance, while a large code-rate close to 1 implies a weak code. The redundant bits that protect the information have to be transferred using the same communication resources that they are trying to protect.
HRESULT. HRESULT is a computer programming data type that represents the completion status of a function . It is used in the source code of applications targeting Microsoft Windows and earlier IBM/Microsoft OS/2 operating systems, but its design does not limit its use to these environments; it can be used in any system supporting 32-bit integers .
The delay line and interleaver force input bits d k to appear in different sequences. At first iteration, the input sequence d k appears at both outputs of the encoder, x k and y 1k or y 2k due to the encoder's systematic nature. If the encoders C 1 and C 2 are used in n 1 and n 2 iterations, their rates are respectively equal to = + + = + +
A Viterbi decoder uses the Viterbi algorithm for decoding a bitstream that has been encoded using a convolutional code or trellis code . There are other algorithms for decoding a convolutionally encoded stream (for example, the Fano algorithm ). The Viterbi algorithm is the most resource-consuming, but it does the maximum likelihood decoding.
Fibre Channel 8b/10b encoding. Layer 0. Physical. In telecommunications, 8b/10b is a line code that maps 8-bit words to 10-bit symbols to achieve DC balance and bounded disparity, and at the same time provide enough state changes to allow reasonable clock recovery. This means that the difference between the counts of ones and zeros in a string ...
To eliminate this source of error, Martin Porter released an official free software (mostly BSD-licensed) implementation [2] of the algorithm around the year 2000. He extended this work over the next few years by building Snowball , a framework for writing stemming algorithms, and implemented an improved English stemmer together with stemmers ...
The C++ programming language has support for string handling, mostly implemented in its standard library. The language standard specifies several string types, some inherited from C, some designed to make use of the language's features, such as classes and RAII. The most-used of these is std::string .
The Viterbi algorithm is named after Andrew Viterbi, who proposed it in 1967 as a decoding algorithm for convolutional codes over noisy digital communication links. [2] It has, however, a history of multiple invention, with at least seven independent discoveries, including those by Viterbi, Needleman and Wunsch, and Wagner and Fischer. [3]