MR8740、MR8741_user_manual_eng_20191016H.pdf - 第305页
12.8 FFT Analysis Modes 293 11 Chapter 12 FFT Function 12 12.8.2 Analysis Mode Functions Analysis Mode Internal analysis formula (linear, real, imag [imaginary] , log [logarithm] ) OFF No analysis. Storage Waveform A wav…
12.8 FFT Analysis Modes
292
( : 1/1 OCT, : 1/3 OCT)
Timebase
Period [s]
Sampling frequency [Hz]
Frequency range [Hz]
[Hz]
Center
frequency
12.8 FFT Analysis Modes
293
11
Chapter 12 FFT Function
12
12.8.2 Analysis Mode Functions
Analysis Mode Internal analysis formula (linear, real, imag [imaginary], log [logarithm])
OFF
No analysis.
Storage Waveform
A waveform obtained by applying the window function to a time-domain waveform.
Histogram
Counts amplitude data.
Linear Spectrum
RMS Spectrum
Power Spectrum
Power Spectrum Density
LPC analysis(Power
Spectrum Density)
(Abbr.) Spectrum approximation from Linear Predictive Coding.
See: "Linear Predictive Coding (LPC)" (p.A26)
Transfer Function
Cross Power Spectrum
Impulse Response
Coherence Function
Phase Spectrum
Auto-correlation Func-
tion
Cross-correlation Func-
tion
1/1 Ovtave Analysis (Abbr.)
1/3 Ovtave Analysis (Abbr.)
f: Frequency resolution
: Cross Spectrum
(recursive convolution)
(recursive convolution)
12.8 FFT Analysis Modes
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