Decode binary signal using differential decoding
DifferentialDecoder object decodes the
binary input signal. The output is the logical difference between
the consecutive input element within a channel.
To decode a binary signal using differential decoding:
Define and set up your differential decoder object. See Construction.
stepto decode a binary signal according to the properties of
comm.DifferentialDecoder. The behavior of
stepis specific to each object in the toolbox.
Starting in R2016b, instead of using the
to perform the operation defined by the System object™, you can
call the object with arguments, as if it were a function. For example,
= step(obj,x) and
y = obj(x) perform
H = comm.DifferentialDecoder creates a
differential decoder System object,
object decodes a binary input signal that was previously encoded using
a differential encoder.
H = comm.DifferentialDecoder( creates
H, with each specified property set to
the specified value. You can specify additional name-value pair arguments
in any order as (
Initial value used to generate initial output
Specify the initial condition as a real scalar. This property
can have a logical, numeric, or fixed-point (embedded.fi object) data
type. The default is
|step||Decode binary signal using differential decoding|
Decode Differentially Encoded Signal
Create a differential encoder and decoder pair.
diffEnc = comm.DifferentialEncoder; diffDec = comm.DifferentialDecoder;
Generate random binary data. Differentially encode and decode the data.
data = randi([0 1],100,1); encData = diffEnc(data); decData = diffDec(encData);
Determine the number of errors between the original data and the decoded data.
numErrors = biterr(data,decData)
numErrors = 0
This object implements the algorithm, inputs, and outputs described on the Differential Decoder block reference page. The object properties correspond to the block parameters, except:
|The object only supports single channel, column vector inputs.|
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
Usage notes and limitations:
See System Objects in MATLAB Code Generation (MATLAB Coder).
Introduced in R2012a