Signal Processing Toolbox

Common Periodic Waveforms

The toolbox provides functions for generating widely used periodic waveforms:

• sawtooth generates a sawtooth wave with peaks at ±1 and a period of . An optional width parameter specifies a fractional multiple of at which the signal's maximum occurs.
• square generates a square wave with a period of . An optional parameter specifies duty cycle, the percent of the period for which the signal is positive.

To generate 1.5 seconds of a 50 Hz sawtooth wave with a sample rate of 10 kHz and plot 0.2 seconds of the generated waveform, use

• fs = 10000;
  t = 0:1/fs:1.5;
  x = sawtooth(2*pi*50*t);
  plot(t,x), axis([0 0.2 -1 1])
  
  
  

Multichannel Signals

Common Aperiodic Waveforms