CMSIS-DSP  Verison 3.0
CMSIS DSP Software Library
arm_lms_norm_instance_q31 Struct Reference

Instance structure for the Q31 normalized LMS filter.

Data Fields

uint16_t numTaps
q31_t * pState
q31_t * pCoeffs
q31_t mu
uint8_t postShift
q31_t * recipTable
q31_t energy
q31_t x0

Field Documentation

saves previous frame energy.

step size that controls filter coefficient updates.

number of coefficients in the filter.

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

bit shift applied to coefficients.

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

points to the reciprocal initial value table.

saves previous input sample.