In polybinary signalling method the present bit of binary sequence is algrebraically added with ______ number of previous bits.
A. j
B. 2j
C. j+2
D. j-2
Answer:A
In polybinary signalling method the present bit of binary sequence is algrebraically added with ______ number of previous bits.
A. j B. 2j C. j+2 D. j-2
Explanation: In polybinary signalling method the present binary digit of the sequence is formed from the modulo-2 addition of the j-2 preceding digits of the sequence and the present digit.