Simulation of Linear Block Code Encoding and Decoding Based on MATLAB

In order to improve the reliability and effectiveness of the communication system and enhance the ability of error control and error detection and correction, the paper puts forward "matching method" and "formula method", among which "matching method" is to make the coding results different from correct theoretical coding, and then realize the coding, decoding, error detection and correction quickly based on MATLAB simulation. The formula method proposes an error vector formula which is jointly determined by information bit error and supervisory bit error caused by noise interference in the channel. The experimental results show that both methods can realize the coding and error correction of linear block codes. Combined with an example, the simulation of MATLLAB was used to conduct performance analysis and comparison for many times. The simulation results showed that this method has good performance, low bit error rate, and good reliability and effectiveness.