Post by meintanis on Dec 21, 2009 13:28:18 GMT -5
Plz, if anyone can help me with these problems..
I'd like to find any similar example with solution or tutorial..notes.. anything helpful..!
Thanks in advance
I.M.
Q1
Draw the encoder and state diagram for the (2, 1, 3) convolution code C with generator polynomials .G1=1+x^2 , G2=1+x+x^3
a. Use the state diagram to encode the messages
b. Use the state diagram to find the messages corresponding to the following codewords; 11 01 10 01 00 10 …. and 11 01 11 00 10 01 00 10 ….
Q2
Draw the encoder and state diagram for the (2, 1, 2) convolution code C with generator polynomials .G1=1+x^2 , G2=1+x+x^2
a. Use the state diagram to encode the message 01 11 01 10 11 10 00 11 …..
b. Use a Virterbi diagram to find the message (first 4 bits) from the codeword 10 01 10 01 11….. Let T=5 for the decoding process.
I'd like to find any similar example with solution or tutorial..notes.. anything helpful..!
Thanks in advance
I.M.
Q1
Draw the encoder and state diagram for the (2, 1, 3) convolution code C with generator polynomials .G1=1+x^2 , G2=1+x+x^3
a. Use the state diagram to encode the messages
b. Use the state diagram to find the messages corresponding to the following codewords; 11 01 10 01 00 10 …. and 11 01 11 00 10 01 00 10 ….
Q2
Draw the encoder and state diagram for the (2, 1, 2) convolution code C with generator polynomials .G1=1+x^2 , G2=1+x+x^2
a. Use the state diagram to encode the message 01 11 01 10 11 10 00 11 …..
b. Use a Virterbi diagram to find the message (first 4 bits) from the codeword 10 01 10 01 11….. Let T=5 for the decoding process.