M17_spec/pages/04.appendix/03.convolutional-encoder/docs.md

title	taxonomy
Convolutional Encoder	category docs

The convolutional code shall encode the input bit sequence after appending 4 tail bits at the end of the sequence. Rate of the coder is R=½ with constraint length K=5. The encoder diagram and generating polynomials are shown below.

( \begin{align} G_1(D) =& 1 + D^3 + D^4 \ G_2(D) =& 1+ D + D^2 + D^4 \end{align} )

The output from the encoder must be read alternately.

Figure 1 Convolutional encoder 

Issues to address...

• More details on parameter choice/performance