Howtosignalprocessing
What is hard decision decoding?
Hard decision decoding takes a stream of bits or a block of bits from the threshold stage of receiver, and decodes each bit by considering it as definitely 1 or 0. It samples the received pulses and compares their voltages to threshold values.
How does Viterbi algorithm work?
The purpose of the Viterbi algorithm is to make an inference based on a trained model and some observed data. It works by asking a question: given the trained parameter matrices and data, what is the choice of states such that the joint probability reaches maximum?
