gauspuls

Generate a sampled Gaussian modulated sinusoidal pulse centered at zero, with a specified center frequency and fractional bandwidth.

Syntax

p = gauspuls(t)

p = gauspuls(t, fc)

p = gauspuls(t, fc, bw)

p = gauspuls(t, fc, bw, bwr)

tc = gauspuls('cutoff', fc, bw, bwr, tpr)

Inputs

t
The times at which to generate the signal, or 'cutoff' to compute the time (> 0) at which the envelope falls to tpr dB.
Dimension: string | vector
fc
The center frequency. (default: 1000 Hz)
Dimension: scalar
bw
The fractional bandwidth. (default: 0.5)
This is the width of the Gaussian envelope at bwr dB, divided by fc. (default: 0.5)
Dimension: scalar
bwr
The fractional bandwidth reference. (default: -6)
Dimension: scalar
tpr
The trailing pulse reference. (default: -60)
For use when t = 'cutoff' to compute tc.
Dimension: scalar

Outputs

p
The gaussian-modulated pulse.
tc
The positive time at which the envelope falls to tpr dB.

Example

Plot a pulse with a 1200 Hz center frequency and a 0.4 fractional bandwidth, centered at t=3 ms on a 10 ms interval, sampled at 100 KHz.

t = [0:0.01:10] * 0.001;
p = gauspuls(t - 0.003, 1200, 0.4);
plot(t, p);
xlabel ('Time (ms)');
ylabel ('Amplitude');


Figure 1. gauspuls figure 1

Comments

gauspuls is commonly used as an input to pulstran.