译码 Resources

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CRC (Cyclic Redundancy Check) code, derived from block linear codes, primarily operates with binary codewords. Its simple encoding process and low false-detection probability make it widely adopted in communication systems. As an important class of linear block codes, CRC not only possesses strong algebraic theoretical foundations but also enables straightforward implementation of encoding and decoding through linear shift registers. Analysis and MATLAB-based simulations demonstrate CRC's robust error-detection capabilities and encoding simplicity.

MATLAB 254 views Tagged

Application Background: To improve transmission efficiency, compression encoding technology is required to remove redundant information from signals while maintaining quality, thereby reducing signal rate and bandwidth usage. Even digitally-native data and text information benefit from compression encoding to reduce redundancy. Key Technology: Symbols are arranged in descending probability order. The two smallest probabilities are merged iteratively until reaching probability 1. During merging, higher-probability symbols use encoding 0 while lower-probability symbols use encoding 1. Algorithm implementation involves binary tree construction and code assignment through recursive probability merging.

MATLAB 243 views Tagged