Differential Decoder

Decode binary signal using differential coding

Library

Source Coding

• 

Description

The Differential Decoder block decodes the binary input signal. The output is the logical difference between the consecutive input element within a channel. More specifically, the block's input and output are related by

m(i₀) = d(i₀) XOR Initial condition parameter value

m(i_k) = d(i_k) XOR d(i_k-1)

where

• d is the differentially encoded input.

• m is the output message.

• i_k is the kth element.

• XOR is the logical exclusive-or operator.

This block accepts a scalar, column vector, or matrix input signal and treats columns as channels.

Parameters

Initial conditions

The logical exclusive-or of this value with the initial input value forms the initial output value.

Supported Data Type

Port	Supported Data Types
In	double single boolean integer fixed-point
Out	double single boolean integer fixed-point

References

[1] Couch, Leon W., II, Digital and Analog Communication Systems, Sixth edition, Upper Saddle River, N. J., Prentice Hall, 2001.

Pair Block

Differential Encoder

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced before R2006a