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4.8 FFT Analysis Function
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4.8.10 Unit Impulse Response [IMP]
Function
Horizontal
cursor
Vertical
cursor
Stored waveform (input signal)
Stored waveform (output signal)
Unit impulse response
Displays the frequency response of a system in the time domain.
A response waveform equivalent to the unit impulse function is obtained by
analyzing the input and output signals of the system being measured.
Major applications
Checking circuit time constants.
IMP =
-1
(Hab)
Time Time display. The center indicates the reference (
τ
=0), the
right side indicates time lag (+
τ
), and the left side indicates
time lead (-
τ
).
Linear Inverse Fourier conversion value of the transfer function (Hab)
(no units).
Example Unit impulse response waveforms
Summary of Contents for MEMORY HiCORDER 8855
Page 2: ......
Page 20: ...xii Chapter Summary...
Page 21: ...1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 1 Product Overview...
Page 28: ...8 1 2 Identification of Controls and Indicators...
Page 116: ...96 4 8 FFT Analysis Function...
Page 117: ...97 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 5 Input Channel Settings...
Page 177: ...157 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Chapter 8 Search Function...
Page 186: ...166 8 6 Moving Cursors to the Search Points...
Page 205: ...185 10 5 Example of Printer Output Printing the List MEM Example...
Page 263: ......
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