卷积码是数字通信中很重要的一种差错控制编码 具有很好的性能,用硬件的形式描述具有速度快，便于修改的优点，通过该种方法设，计的编码器经测试运行可靠正确。-Convolutional codes are very important in digital communication error control coding with a good performance, with the descr iption of the hardware in the form of a fast, easy to modify the benefits set by the methods, namely, the encoder has been tested and reliable operation correctly .