Agilent Technologies ENA Series Guia do Utilizador Página 342

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336 Chapter 9
Analysis in Time Domain (Option 010)
Transformation to time domain
Transformation to time domain
The transformation function lets you transform a response in the frequency domain to the
corresponding response in the time domain.
Measurement flow
Table 9-1 shows the measurement flow of this transformation.
Table 9-1 Flow of transformation to time domain
Item Description
“Selecting a type” on
page 337
Selects the transformation type from the following.
Band pass mode
You can set the sweep range arbitrarily. This is suitable for devices through
which signals within a certain frequency range pass such as filters.
Low pass mode
Simulates the TDR measurement. This mode is suitable for devices through
which dc current or signals of many frequencies pass, such as cables.
The low pass mode provides two types of modes: low pass step and low
pass impulse.
“Setting the window” on
page 339
Sets the window to reduce the ringing phenomenon, in which a waveform’s
waves are caused due to the fact that the frequency domain is finite.
“Calculating necessary
measurement conditions” on
page 340
Calculates the following values to obtain the necessary resolution and
measurement range in the time domain.
Sweep range
Number of points
Window width
“Setting the frequency range
and the number of points” on
page 344
Sets the sweep range and the number of points to the values calculated above.
“Setting display range” on
page 345
Sets the range displayed on the graph.
“Enabling transformation
function” on page 345
Enables the transformation function.
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