Viterbi decoding of punctured convolutional codes without real-time branch metric computation

• Main Author: VAN DEN BERGHE LARRY
• Format: Patent
• Language: English
• Published: 16.04.2002
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

An apparatus is provided in a digital communications device for efficiently determining the Hamming distance for trellis based decoders, such as decoders for punctured convolutional codes. The Hamming distance is pre-determined for all codes and stored in program memory. In one version, the device c...