在Turbo码数据帧中插入循环码实现纠错

Correcting Errors in the Data Frame of Turbo Code Using Cyclic Code

提出 Turbo码译码器输出似然比绝对值最小的若干符号出现差错的概率最大 ,可以将此若干符号的位置作为 Turbo码译码器输出数据帧错误位置的依据。在此基础上 ,在 Turbo码的数据帧中插入简单的 CRC码即可前向纠正单个或多个随机差错。

Most of the errors in a data block of the turbo codes occur within those symbols whose output LLR of the turbo decoder have the minimum absolute values.The locations of those symbols which have very low LLR absolute value as the references of the error locations are used.Single bit and multi-bit random errors in a data block can be forward corrected with a simple cyclic redundancy check code.