Basically for every N bits of your message, you have some check bits.
You can detect and correct errors in the check bits, based on the data, or errors in the data, based on check bits. Too many errors though, and it's just garbage. There may be a utility in your language of choice to already do this.
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基本上，对于消息的每 N 位，都有一些检查位。
您可以根据数据检测并纠正校验位中的错误，或者根据校验位检测并纠正数据中的错误。但错误太多，而且只是垃圾。您选择的语言中可能已经有一个实用程序可以执行此操作。
Basically for every N bits of your message, you have some check bits.
You can detect and correct errors in the check bits, based on the data, or errors in the data, based on check bits. Too many errors though, and it's just garbage. There may be a utility in your language of choice to already do this.
这可以使用：http://www.eccpage.com/
This can be of use: http://www.eccpage.com/