Communications Blockset

Differential Decoder

Decode a binary signal using differential coding technique.

Library

Source Coding

Description

The Differential Decoder block decodes the binary input signal. The output of the Differential Decoder block is the decoded binary signal.

The block's input m and output d are related by

d(t₀) = m(t₀) + 1 mod 2

d(t_k) = m(t_k-1) + m(t_k) + 1 mod 2

where t_k is the kth time step.

The input can be either a scalar, a sample-based vector, or a frame-based row vector. This block processes each vector element independently.

Dialog Box

Symbol interval (s)

The sample time of the input symbol.

Pair Block

Differential Encoder

Descrambler

Differential Encoder