Spectrogram: Compute the spectrogram of the signal at the given time range

In cyrus-and/iq: I/Q file analysis toolkit

Description

Compute the spectrogram of the signal at the given time range

Usage

Spectrogram(signal, from.time = window$size/signal$sample.rate,
  to.time = signal$duration, window = Rectangular(1024),
  segment.overlap = 0, n.segments)

Arguments

signal	Source signal.
from.time	From time instant.
to.time	To time instant.
window	FFT window function. Custom windows are just named lists: 'size' the window size in number of samples; 'value' a function taking an integer in range 0:(size - 1) and returning the window value.
segment.overlap	Segment overlap ratio (0 means contiguous segments), negative values produce spaced segments.
n.segments	Exact number of segments (take precedence over segment.overlap which is computed accordingly).

Value

A named list suitable to be printed with image, x element represents the time while y represents the frequency.

See Also

image

Other FFT: Hamming, Hanning, Rectangular, Spectrum, Triangular

cyrus-and/iq documentation built on May 14, 2019, 1:40 p.m.