Single-Rate FIR LMS Filter Functions

The functions described in this section perform the following tasks:

• initialize a single-rate FIR LMS filter
• get and set the delay line values
• get the filter coefficients (taps) values
• perform filtering
• free dynamic memory allocated for the functions state

To use the single-rate FIR LMS adaptive filter functions, follow this general scheme:

1. Call ippsFIRLMSInitAlloc to allocate memory and initialize a single-rate FIR LMS filter.
2. Call ippsFIRLMSOne_Direct to make one iteration of FIR filter taps fitting with one input sample and/or call ippsFIRLMS to fit taps with a block of consecutive input samples.
3. Call ippsFIRLMSMRGetTaps to get the filter coefficients (taps). Call ippsFIRLMSMRGetDlyLine and ippsFIRLMSMRSetDlyLine to get and set the values in the delay line.
4. Call ippsFIRLMSMRFree to release dynamic memory associated with the FIR LMS filter.

• FIRLMSInitAlloc
  Allocates memory and initializes an adaptive FIR filter that uses the least mean squares (LMS) algorithm.
• FIRLMSFree
  Closes an adaptive FIR filter that uses the least mean squares (LMS) algorithm.
• FIRLMSGetTaps
  Retrieves the tap values from the FIR LMS filter.
• FIRLMSGetDlyLine
  Retrieves the delay line contents from the FIR LMS filter.
• FIRLMSSetDlyLine
  Sets the delay line contents in the FIR LMS filter.
• FIRLMS
  Filters a vector through the FIR LMS filter.
• FIRLMSOne_Direct
  Filters a single sample through a FIR LMS filter.

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