CMSIS-DSP: arm_lms_instance_q15 Struct Reference

| CMSIS-DSP Version 1.4.7 CMSIS DSP Software Library

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arm_lms_instance_q15 Struct Reference

Instance structure for the Q15 LMS filter.

## Data Fields

uint16_t | numTaps
q15_t * | pState
q15_t * | pCoeffs
q15_t | mu
uint32_t | postShift

## Field Documentation

q15_t arm_lms_instance_q15::mu

step size that controls filter coefficient updates.

Referenced by arm_lms_init_q15(), and arm_lms_q15().

uint16_t arm_lms_instance_q15::numTaps

number of coefficients in the filter.

Referenced by arm_lms_init_q15(), and arm_lms_q15().

q15_t* arm_lms_instance_q15::pCoeffs

points to the coefficient array. The array is of length numTaps.

Referenced by arm_lms_init_q15(), and arm_lms_q15().

uint32_t arm_lms_instance_q15::postShift

bit shift applied to coefficients.

Referenced by arm_lms_init_q15(), and arm_lms_q15().

q15_t* arm_lms_instance_q15::pState

points to the state variable array. The array is of length numTaps+blockSize-1.

Referenced by arm_lms_init_q15(), and arm_lms_q15().