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Simulating Adaptive Filters (Adaptive Filter Toolkit)

LabVIEW 2013 Adaptive Filter Toolkit Help

Edition Date: June 2013

Part Number: 372357B-01

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After you create an adaptive filter, you can apply the adaptive filter to a signal to verify the filter configuration. This process is known as simulation. By simulating an adaptive filter, you can determine the appropriate filter length and step size for the adaptive filter. You also can obtain information about the value range of the filter coefficients. You can use this information to determine the appropriate integer word length of the filter coefficients for the corresponding fixed-point adaptive filter.

Use the AFT Filter Signal and Update Coefficients VI to simulate a floating-point adaptive filter. Simulate the adaptive filter and adjust the filter configuration as necessary until the performance of the adaptive filter meets the application requirements. For example, if you want to use the adaptive filter to perform system identification, adjust the filter length and step size iteratively until the power of the error signal converges to an optimal value.

Refer to the Use Adaptive Filter (Array) VI in the examples\Adaptive Filters\Getting Started directory for an example that uses the AFT Filter Signal and Update Coefficients VI to simulate a floating-point adaptive filter.


 

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