is there a function 'helperRad​arPulsePlo​t(rxpulses​,threshold​,... fast_time_​grid,slow_​time_grid,​num_pulse_​plot);' in matlab 2013a

when i am running helperRadarPulsePlot(rxpulses,threshold,... fast_time_grid,slow_time_grid,num_pulse_plot); i get an error message

Undefined function 'helperRadarPulsePlot' for input arguments of type 'double'.

Error in try1 (line 119) helperRadarPulsePlot(rxpulses,threshold,...

how can i solve it

[KSSV]

There is a problem with class of the input. Seems the function wont accept double.

[RESHMA]

can you suggest how to solve it

[Walter Roberson]

Upgrade to at least R2013b.

Answer 1

[Walter Roberson]

No, there is not.

It was new in R2013b, and was not present in R2013a.

[RESHMA]

sir pls can you suggest me an idea to solve it

[RESHMA]

i have already tried step function but it doesnt work

[Walter Roberson]

It just does a bunch of plotting. Comment it out and go on.

[Walter Roberson]

It is also used in ChirpRangeEstimationExample

The R2013a equivalent function appears to be named rangedemoplotpulse and the R2013a version of the code is at http://www.mathworks.com/help/releases/R2013a/phased/examples/designing-a-basic-monostatic-pulse-radar.html

Answer 2

[csscer csscer]

I think it is a BUG, so I write the funciton for it.

function helperRadarPulsePlot(pulses,threshold,fgrid,~,num_pulse_plot)
for n=1:num_pulse_plot
    subplot(num_pulse_plot,1,n);
    plot(fgrid,20*log10(abs(pulses(:,n))),'b','LineWidth',2);hold on;
    plot(fgrid,10*log10(threshold)*ones(1,size(pulses,1)),'-.r','LineWidth',1);hold off;
    xlabel('Time (s)');
    ylabel('Power (dBW)');
    title(['Pulse ',num2str(n)]);
end
end

[Andrew Kalukin]

Thanks for this function. It works nicely for me.

Answer 3

[Honglei Chen]

This is a helper function used in the example of Designing a Basic Monostatic Radar. The example ships in R2013a so you should be able to find the corresponding helper function used in that release.

HTH