specwelch 1.0

Operating systemsOS : Windows / Linux / Mac OS / BSD / Solaris
Program licensingScript Licensing : Freeware
CreatedCreated : Sep 11, 2007
Size downloadDownloads : 2
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USAGE:<br />q = ...

USAGE:
q = specwelch by alex sanchez(x, dt, w, Nsg, pnv, Wn, ftype, n)
[psdf, f] = specwelch 1.0(x, dt, w, Nsg, pnv, Wn, ftype, n)
[psdf, conf, f] = specwelch [specwelch1.0.exe](x, dt, w, Nsg, pnv, Wn, ftype, n)
DESCRIPTION:
Calculates the spectrum for x
using Welch's method.
The confidence intervals are calculated
using the inverse of chi-square CDF.
Also includes a filter option using the
butterworth filter to see the effect of the
filter on the spectrum
INPUT VARIABLES:
x - Time series, [vector]
dt - Sampling Rate, [scalar]
win - Window, one of:
'hanning', 'hamming', 'boxcar'
Nsg - number of Segments (>=1)
pnv - Percentage Noverlap of segments (0-100)
Nb - Band Averaging, number of bands to average
Wn - Cut-Off frequencies, used for filtering
ftype - Type of filter, 'high', 'low' or 'stop'
n - Number of coefficients to use in
the Butterworth filter
OUTPUT VARIABLES:
q - structure with the following fields:
xp - detrended x
f = Frequencies
T - Periods
m - Magnitude
a - Amplitude
s - power spectrum, Sxx(win), [Power]
psdw - Power spectral Density, Pxx(win), [Power/rad/sample]
psdf - Power Spectral density, Pxx(f), [Power/sample-freq]
psdT - Power Spectral Density, Pxx(T), [Power*time-unit]
conf - Upper and Lower Confidence Interval multiplication
factors using chi-squared approach
Demands:
• MATLAB Release: R14

specwelch 1.0 scripting tags: density, matlab specwelch, power, signal processing, filter, specwelch processing, segments, spectral, number, spectrum. What is new in specwelch 1.0 software script? - Unable to find specwelch 1.0 news. What is improvements are expecting? Newly-made specwelch 1.1 will be downloaded from here. You may download directly. Please write the reviews of the specwelch. License limitations are unspecified.