show
Show scope window
Syntax
Description
Examples
Hide and Show Scope
Create a comm.ConstellationDiagram
object.
scope = comm.ConstellationDiagram;
Hide the constellation diagram scope window.
if(isVisible(scope)) hide(scope) end
Show the constellation diagram scope window.
if(~isVisible(scope)) show(scope) end
Hide the constellation diagram scope window again.
if(isVisible(scope)) hide(scope) end
Hide and Show Constellation Diagram
Generate a 16-QAM reference constellation and a signal to display.
M = 16; xRef = (0:M-1)'; refConst = qammod(xRef,M); signal = randi([0 M-1],1000,1);
Create a constellation diagram System object™, specifying the constellation reference points and axes limits using name-value pairs.
scope = comm.ConstellationDiagram('ReferenceConstellation',refConst, ... 'XLimits',[-4 4],'YLimits',[-4 4]);
Modulate the random data signal using QAM. Add Gaussian white noise to the QAM symbols. Display the QAM symbols and noisy symbols with the constellation diagram object.
sym = qammod(signal,M);
rcv = awgn(sym,20,'measured');
scope([sym rcv]);
Hide the constellation diagram scope window.
if(isVisible(scope)) hide(scope) end
Show the constellation diagram scope window.
if(~isVisible(scope)) show(scope) end
Clear the workspace variables.
clear scope sym rcv M refConst signal xRef
Input Arguments
scope
— Scope System object
scope System object
Scope System object, specified as a comm.ConstellationDiagram
System object.
Example: scope =
comm.ConstellationDiagram;
Version History
Introduced in R2013a
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