CoCo-80 User Manual
139
Time
streams of
native
channels
Time streams
for each data
conditioning
output
Acquisition
Mode,
Blocked Time
Capture
FFT and
Auto-Power
Spectra
Table 5. Comparison of measurement quantities for different spectral
analysis templates.
The Frequency Response template contains the most complete set of analysis
functions. However, this does not mean that it is always the best template to use.
Application groups with more measurement functions available require greater
DSP resources. Heavy use of these resources, such as when using complex data
conditioning, many channels, and high sample rates, will result in degradation of
real-time computation ability.
Every CSA project has a parameter for Maximum Sampling Rate. If the
processing requirements of the project are too high, this setting will have to be
reduced. It is best to choose the lowest sampling rate that will be required for the
application to conserve resources.
After the CSA Editor Wizard is finished, an empty project will be created. Data
conditioning functions can be configured by connecting the data conditioning
modules to time stream blocks under the Data Conditioning tab. For more details,
refer to the CSA Editor User’s Manual.
Select the Signals to Compute
The rest of this section assumes the Frequency Response template is used. With
the other templates, some of these functions will not be available.
Under the Acquisition Mode tab, time stream signals can be selected for block
acquisition. This is the process by which time streams are converted to a series of
blocks. These block signals are then available for spectrum analysis functions such
as Auto Power Spectrum and Frequency Response Functions. Time stream
signals include the native channel sources and the output of data conditioning
modules. Selecting “Set as Trigger Source Candidate” also enables the channel to
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