DAPL – DSP Spectral Analysis

The spectral analysis commands in the DAPL system can operate on any data type at real-time rates.

FFT

Calculate a Discrete Fourier Transform of data blocks up to 16K terms, with options for forward and backward transforms, windowing, and post-transform processing to magnitude/phase, power or complex form.

CORRELATE

Use FFT methods to compute an efficient cross-correlation for blocks of data from two signals.

CROSSPOWER

Use FFT methods to compute crosspower spectra for blocks of data from two signals.

TFUNCTION1 or TFUNCTION2

Calculate amplitude gain in decibels and phase shift in radians at each frequency, given the transforms of the input and output signals, with choice of algorithms.

Visit our DSP section for information on applications and techniques.