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Waveform Generation

Pulses, chirps, VCOs, sinc functions, periodic/aperiodic and modulated signals

Generate linear, quadratic, and logarithmic chirps using chirp. Create square, rectangular, and triangular waves using square, rectpuls, and sawtooth.

Functions

chirp Swept-frequency cosine
diric Dirichlet or periodic sinc function
gauspuls Gaussian-modulated sinusoidal pulse
gmonopuls Gaussian monopulse
pulstran Pulse train
randn Normally distributed random numbers
rectpuls Sampled aperiodic rectangle
sawtooth Sawtooth or triangle wave
sin Sine of argument in radians
sinc Sinc function
square Square wave
stem Plot discrete sequence data
tripuls Sampled aperiodic triangle
vco Voltage controlled oscillator
buffer Buffer signal vector into matrix of data frames
demod Demodulation for communications simulation
modulate Modulation for communications simulation
seqperiod Compute period of sequence
shiftdata Shift data to operate on specified dimension
unshiftdata Inverse of shiftdata
strips Strip plot
udecode Decode 2n-level quantized integer inputs to floating-point outputs
uencode Quantize and encode floating-point inputs to integer outputs
marcumq Generalized Marcum Q function

Topics

Signal Generation and Visualization

Generate periodic and aperiodic waveforms, sequences such as impulses, steps, and ramps, multichannel signals, pulse trains, sincs, and Dirichlet functions.

Supported File Formats for Import and Export

Table of file formats that MATLAB® can read and write, and recommended functions

Create Uniform and Nonuniform Time Vectors

Create time vectors to use as independent variables in computations involving time series.

Waveform Generation: Time Vectors and Sinusoids

Generate a vector representing a time base. Create a sample signal consisting of two sinusoids.

Impulse, Step, and Ramp Functions

Generate a unit impulse, a unit step, a unit ramp, and a unit parabola.

Common Periodic Waveforms

Generate widely used periodic waveforms such as sawtooth waves and square waves.

Common Aperiodic Waveforms

Generate widely used aperiodic waveforms such as Gaussian-modulated sinusoidal pulses and linear, logarithmic, or quadratic chirps.

The pulstran Function

Generate pulse trains from either continuous or sampled prototype pulses.

The Sinc Function

Compute the mathematical sinc function for an input vector or matrix.

The Dirichlet Function

Compute the Dirichlet function, sometimes called the periodic sinc or aliased sinc function.

Display Time-Domain Data in Signal Browser

Display signals in the time domain using the SPTool Signal Browser.

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