ABSTRACT
The acquisition of information about channel coding sequences is the research emphasis and diculties at present, and recognizing the channel coding parameters is the prerequisite for information acquisition. Parametric analysis about channel coding is an important component of intelligence communication, communication reconnaissance and computer network operations. Convolutional codes are widely used in many communication systems because of its advantages of simplicity implementation and powerful error correction. The blind recognition of channel codes is to quickly identify the coding system, method and parameters only by using received data under the condition of unknown encoding information. The fast blind recognition algorithm of convolution codes is a relatively new and professional field. With digital communication technology developing to the adaptive and intelligent direction, more and more areas will demand for the blind identification of channel coding technology. So the study is worthy of theoretical and practical significance.
