问题2： 要发现收到的报文中的错误，最 “straight forward”的方法是什么？ Received Word 000 001 010011 100 101 110 111 Transmitted 000 0 1 1 2 1 2 2 3 Codeword 111 3 2 1 2 1 1 0 Table 8.1.A repetition code Example 3.Suppose that our original message is either a 0 or a 1,and that 0 encodes to (000)and 1 encodes to (111).If only a single error occurs during transmission,we can detect and correct the error