Description of the Software Modules and Parameters
Parameter manual b maXX BM3000
Document no.: 5.12001.07
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of 820
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4.9.3 Software function FFT analyzer
The FFT Analyzer module is used to enable the display of the signal in the frequency
range through FFT (Fast Fourier Transformation). Two channels may be operated simul
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taneously. Furthermore, the transmission function between signals can be determined.
The results of the analysis are provided as parameters for further processing. Window
functions (Windowing), Average (average determination) are also provided in this mod
-
ule. A signal generator is also integrated for system analysis, which can be fed into the
system by broadband signals, such as white noise, or sine signal generated and through
the parameter interface.
Block diagram of the module
Figure 220: Block diagram FFT module
4.9.3.1 Parameter overview
Functional block: FbFft [104]
5000_1000_rev01_int.cdr
DSP Firmware
ID104.4 ID104.5 ID104.7
ID104.1
In_1 In_2
Signal Out
Output as array
Parameter
Results: spectrum In_1, In_2,
Amplitude phase response In_2/In_1,
Coherence
Parameter interfaces
Module FFT analyser
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