Getting numerical data for dsp.Chirp or frest.Chirp functions

1 Ansicht (letzte 30 Tage)
Is there a way to access the numerical data from the dsp.Chirp() or frest.Chirp() functions? For instance, I use the following code to generate and plot a swept frequency sinsoidal chirp. Can I access the resulting numbers, say as a vector, to process them? Say, I wish to multiply the given chirp with another signal or filter it, etc?
start_freq = 10e6;
end_freq = 100e6;
n_points = 1000;
f_range = linspace(start_freq, end_freq, n_points); %frequency range to calculate the VSWR
end_freq =start_freq+(num_periods*delta_f);
VSWR_sweptFreq_input = frest.Chirp('Amplitude',1, 'FreqRange',[start_freq end_freq], 'FreqUnits', 'Hz', 'NumSamples', n_points, 'InitialPhase', 0);
plot(VSWR_sweptFreq_input);
title('Original and Reconstructed VSWR functions')
xlabel(['Frequency' newline 'Range:' num2str(start_freq/1e6) ' to ' num2str(end_freq/1e6) ' (MHz)' ])
ylabel('Voltage (V)')

Akzeptierte Antwort

Mehmed Saad
Mehmed Saad am 22 Apr. 2020
Bearbeitet: Mehmed Saad am 22 Apr. 2020
x=VSWR_sweptFreq_input.generateTimeseries;
t = x.Time;
lfm = x.Data;
or you can take it out from plot
y = gca;
t = y.Children.XData;
lfm = y.Children.YData;
  3 Kommentare
Farah Akhtar
Farah Akhtar am 22 Apr. 2020
Also, to clarify, I used it as follows:
ts = generateTimeseries(VSWR_sweptFreq_input);
plot(f_range, ts.data);

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by