pleas! what is wrong in this program?

sampleTime = 1/500000; % Sample time (s)
maxDopplerShift = 200; % Maximum Doppler shift of diffuse components (Hz)
delayVector = 1.0e-004 * [0 0.0400 0.0800 0.1200];  % Discrete delays of 
                                                    % four-path channel (s)
gainVector = [0 -3 -6 -9]; % Average path gains (dB)
specDopplerShift = 100;  % Doppler shift of specular component (Hz)
KFactor = 10;  % Linear ratio of specular power to diffuse power
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1; % Store channel state information as signal is 
                 
ricChanObj = ricianchan(sampleTime, maxDopplerShift, KFactor, ...
                        delayVector, gainVector, specDopplerShift);
ricChanObj.StoreHistory = 1; % Store channel state information as signal is 
                             % processed for later visualization

phaseOff = pi/4;
modObj = modem.pskmod(4, phaseOff);
modObj.InputType = 'Bit';

bitsPerFrame = 1000;
msg = randint(bitsPerFrame,1);
modSignal = modulate(modObj, msg);
filter(rayChanObj,modSignal);
filter(ricChanObj, modSignal);

channel_vis(rayChanObj, 'Visualization', 'ir'); % View Impulse Response
channel_vis(rayChanObj, 'Animation', 'medium'); % Set animation speed
channel_vis(rayChanObj, 'SampleIndex', 1); % Set animation start point

channel_vis(rayChanObj, 'close'); % Close Channel Visualization Tool
sampleTime = 1/20000; % 20 kb/s transmission

bitsPerFrame = 1000;
numFrames = 20;

rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0; % Retain channel states across 
                                     % multiple frames

for i = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to the data
    channel_vis(rayChanObj, 'Visualization', 'fr'); % Frequency response
    plot(rayChanObj);
end

channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);


channel_vis(rayChanObj, 'Visualization', 'gain');
delayVector = 0;  % Single fading path with zero delay
gainVector = 0;  % Average path gain of 1 (0 dB)
channel_vis(rayChanObj, 'close');
bitsPerFrame = 1000;
numFrames = 100;
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0;

for i = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to data
    channel_vis(rayChanObj, 'Visualization', 'fr'); % Frequency response
    plot(rayChanObj);
end
channel_vis(rayChanObj, 'Visualization', 'fr');
channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'phasor');
channel_vis(rayChanObj, 'Animation', 'slow');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'gain');
channel_vis(rayChanObj, 'close');
channel_vis(rayChanObj, 'Visualization', 'doppler');
ricChanObj = ricianchan(sampleTime, maxDopplerShift, KFactor, delayVector, ...
                        gainVector, specDopplerShift);
ricChanObj.StoreHistory = 1; 
bitsPerFrame = 1000;
msg = randint(bitsPerFrame,1);
modSignal = modulate(modObj, msg);
channel_vis(rayChanObj, 'close');
ricFiltSig = filter(ricChanObj,modSignal);
channel_vis(ricChanObj, 'Visualization', 'gain'); % Multipath components
channel_vis(ricChanObj, 'Visualization', 'phasor');
channel_vis(ricChanObj, 'Animation', 'slow');
channel_vis(ricChanObj, 'SampleIndex', 1);
delayVector = (0:3)*(4e-6);
gainVector = (0:3)*(-3);
maxDopplerShift = 5;
channel_vis(ricChanObj, 'close');
h = scatterplot(0);
title('Received Signal After Rayleigh Fading');
xlabel('In-Phase Amplitude'); % Set axis labels
ylabel('Quadrature Amplitude');
xlim([-2 2]); % Set axis limits
ylim([-2 2]);
grid on;
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0;
numFrames = 100;
bitsPerFrame = 200;
for n = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    rayFiltSig = filter(rayChanObj,modSignal); % Apply channel filtering
    set(get(get(h, 'Children'), 'Children'), 'XData', ...
        real(rayFiltSig(6:end)), 'Ydata', imag(rayFiltSig(6:end)));
    pause(0.05); % Pause between re-draws
    drawnow; % Refresh the image
end
close(h);
reset(rayChanObj);
rayChanObj.InputSamplePeriod =  1/500000;  % 500 kb/s transmission.

h = scatterplot(0); % Initialize scatter plot
title('Received Signal After Rayleigh Fading');
xlabel('In-Phase Amplitude'); % Set axis labels
ylabel('Quadrature Amplitude');
xlim([-2 2]); % Set axis limits
ylim([-2 2]);
grid on;
numFrames = 100;
bitsPerFrame = 200;
for n = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    rayFiltSig = filter(rayChanObj,modSignal); % Apply channel filtering

    set(get(get(h, 'Children'), 'Children'), 'XData', ...
        real(rayFiltSig(6:end)), 'Ydata', imag(rayFiltSig(6:end)));
    pause(0.05); % Pause between re-draws
    drawnow; % Refresh the image
end
close(h);
reset(rayChanObj);

bitsPerFrame = 1000;
rayChanObj.MaxDopplerShift = 200;
numFrames = 13;

for i = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to the data
end
channel_vis(rayChanObj, 'Visualization', 'irw');
channel_vis(rayChanObj, 'Animation', 'interframe');

channel_vis(rayChanObj, 'Visualization', 'fr');
channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'compgain');
channel_vis(rayChanObj, 'Animation', 'interframe');
set(rayChanObj.MultipathFigure.FigureHandle,...
    'Position', [544 447 700 525]);
displayEndOfDemoMessage(mfilename)

[Image Analyst]

This is what I get

'rayleighchan' requires Communications Toolbox.

Error in test6 (line 8)

rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...

Do you have the Communications Toolbox? Do you get this same error, or a different error? Or does the program "work" but it just does not give you the expected result?

Otherwise you'll have to read this link, and then help us to help you by telling us what the actual error is (meaning ALL the red text).

[Nawal mohammad]

yes i have the Communications Toolbox, but progpram does not work! (error line 17)

[Star Strider]

Please copy the entire error message — all the red text — and paste it to a Comment here.

[Nawal mohammad]

>> Untitled6

Warning: RAYLEIGHCHAN will be removed in a future release. Use COMM.RAYLEIGHCHANNEL instead. See this release note for more

information.

> In rayleighchan (line 112)

In Untitled6 (line 8)

Warning: RICIANCHAN will be removed in a future release. Use COMM.RICIANCHANNEL instead. See this release note for more

information.

> In ricianchan (line 76)

In Untitled6 (line 12)

Error using modem.pskmod (line 87)

MODEM.PSKMOD has been removed. See this release note for more information.

Error in Untitled6 (line 17)

modObj = modem.pskmod(4, phaseOff);

Answer 1

[KALYAN ACHARJYA]

sampleTime = 1/500000; % Sample time (s)
maxDopplerShift = 200; % Maximum Doppler shift of diffuse components (Hz)
delayVector=1.0e-004*[0 0.0400 0.0800 0.1200];  % Discrete delays of 
                                                    % four-path channel (s)
gainVector = [0 -3 -6 -9]; % Average path gains (dB)
specDopplerShift = 100;  % Doppler shift of specular component (Hz)
KFactor = 10;  % Linear ratio of specular power to diffuse power
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1; % Store channel state information as signal is 
                 
ricChanObj = ricianchan(sampleTime, maxDopplerShift, KFactor, ...
                        delayVector, gainVector, specDopplerShift);
ricChanObj.StoreHistory = 1; % Store channel state information as signal is 
                             % processed for later visualization
phaseOff = pi/4;
modObj = modem.pskmod(4, round(phaseOff));
modObj.InputType = 'Bit';
bitsPerFrame = 1000;
msg = rand(bitsPerFrame,1);
modSignal = modulate(modObj, round(msg));
filter(rayChanObj,modSignal);
filter(ricChanObj, modSignal);
channel_vis(rayChanObj, 'Visualization', 'ir'); % View Impulse Response
channel_vis(rayChanObj, 'Animation', 'medium'); % Set animation speed
channel_vis(rayChanObj, 'SampleIndex', 1); % Set animation start point
channel_vis(rayChanObj, 'close'); % Close Channel Visualization Tool
sampleTime = 1/20000; % 20 kb/s transmission
bitsPerFrame = 1000;
numFrames = 20;
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0; % Retain channel states across 
                                     % multiple frames
for i = 1:numFrames
    msg = randi(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to the data
    channel_vis(rayChanObj, 'Visualization', 'fr'); % Frequency response
    plot(rayChanObj);
end
channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'gain');
delayVector = 0;  % Single fading path with zero delay
gainVector = 0;  % Average path gain of 1 (0 dB)
channel_vis(rayChanObj, 'close');
bitsPerFrame = 1000;
numFrames = 100;
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0;
for i = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to data
    channel_vis(rayChanObj, 'Visualization', 'fr'); % Frequency response
    plot(rayChanObj);
end
channel_vis(rayChanObj, 'Visualization', 'fr');
channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'phasor');
channel_vis(rayChanObj, 'Animation', 'slow');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'gain');
channel_vis(rayChanObj, 'close');
channel_vis(rayChanObj, 'Visualization', 'doppler');
ricChanObj = ricianchan(sampleTime, maxDopplerShift, KFactor, delayVector, ...
                        gainVector, specDopplerShift);
ricChanObj.StoreHistory = 1; 
bitsPerFrame = 1000;
msg = randint(bitsPerFrame,1);
modSignal = modulate(modObj, msg);
channel_vis(rayChanObj, 'close');
ricFiltSig = filter(ricChanObj,modSignal);
channel_vis(ricChanObj, 'Visualization', 'gain'); % Multipath components
channel_vis(ricChanObj, 'Visualization', 'phasor');
channel_vis(ricChanObj, 'Animation', 'slow');
channel_vis(ricChanObj, 'SampleIndex', 1);
delayVector = (0:3)*(4e-6);
gainVector = (0:3)*(-3);
maxDopplerShift = 5;
channel_vis(ricChanObj, 'close');
h = scatterplot(0);
title('Received Signal After Rayleigh Fading');
xlabel('In-Phase Amplitude'); % Set axis labels
ylabel('Quadrature Amplitude');
xlim([-2 2]); % Set axis limits
ylim([-2 2]);
grid on;
rayChanObj = rayleighchan(sampleTime, maxDopplerShift, delayVector,...
                          gainVector) ;
rayChanObj.StoreHistory = 1;
rayChanObj.ResetBeforeFiltering = 0;
numFrames = 100;
bitsPerFrame = 200;
for n = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    rayFiltSig = filter(rayChanObj,modSignal); % Apply channel filtering
    set(get(get(h, 'Children'), 'Children'), 'XData', ...
        real(rayFiltSig(6:end)), 'Ydata', imag(rayFiltSig(6:end)));
    pause(0.05); % Pause between re-draws
    drawnow; % Refresh the image
end
close(h);
reset(rayChanObj);
rayChanObj.InputSamplePeriod =  1/500000;  % 500 kb/s transmission.
h = scatterplot(0); % Initialize scatter plot
title('Received Signal After Rayleigh Fading');
xlabel('In-Phase Amplitude'); % Set axis labels
ylabel('Quadrature Amplitude');
xlim([-2 2]); % Set axis limits
ylim([-2 2]);
grid on;
numFrames = 100;
bitsPerFrame = 200;
for n = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    rayFiltSig = filter(rayChanObj,modSignal); % Apply channel filtering
    set(get(get(h, 'Children'), 'Children'), 'XData', ...
        real(rayFiltSig(6:end)), 'Ydata', imag(rayFiltSig(6:end)));
    pause(0.05); % Pause between re-draws
    drawnow; % Refresh the image
end
close(h);
reset(rayChanObj);
bitsPerFrame = 1000;
rayChanObj.MaxDopplerShift = 200;
numFrames = 13;
for i = 1:numFrames
    msg = randint(bitsPerFrame,1); % Create data
    modSignal = modulate(modObj, msg); % Modulate data
    filter(rayChanObj,modSignal); % Apply channel filtering to the data
end
channel_vis(rayChanObj, 'Visualization', 'irw');
channel_vis(rayChanObj, 'Animation', 'interframe');
channel_vis(rayChanObj, 'Visualization', 'fr');
channel_vis(rayChanObj, 'Animation', 'medium');
channel_vis(rayChanObj, 'SampleIndex', 1);
channel_vis(rayChanObj, 'Visualization', 'compgain');
channel_vis(rayChanObj, 'Animation', 'interframe');
set(rayChanObj.MultipathFigure.FigureHandle,...
    'Position', [544 447 700 525]);
displayEndOfDemoMessage(mfilename)

If it is OK do the same for second error (simillar)

[Nawal mohammad]

The error remains!

Warning: RAYLEIGHCHAN will be removed in a future release. Use COMM.RAYLEIGHCHANNEL instead. See this release note for more

information.

> In rayleighchan (line 112)

In Untitled7 (line 8)

Warning: RICIANCHAN will be removed in a future release. Use COMM.RICIANCHANNEL instead. See this release note for more

information.

> In ricianchan (line 76)

In Untitled7 (line 12)

Error using modem.pskmod (line 87)

MODEM.PSKMOD has been removed. See this release note for more information.

Error in Untitled7 (line 17)

modObj = modem.pskmod(4, round(phaseOff));

>> Untitled7

Warning: RAYLEIGHCHAN will be removed in a future release. Use COMM.RAYLEIGHCHANNEL instead. See this release note for

more information.

> In rayleighchan (line 112)

In Untitled7 (line 8)

Warning: RICIANCHAN will be removed in a future release. Use COMM.RICIANCHANNEL instead. See this release note for more

information.

> In ricianchan (line 76)

In Untitled7 (line 12)

Error using modem.pskmod (line 87)

MODEM.PSKMOD has been removed. See this release note for more information.

Error in Untitled7 (line 17)

modObj = modem.pskmod(4, round(phaseOff));