CMSIS-DSP  Verison 3.0
CMSIS DSP Software Library
arm_lms_norm_instance_q15 Struct Reference

Instance structure for the Q15 normalized LMS filter.

Data Fields

uint16_t numTaps
q15_t * pState
q15_t * pCoeffs
q15_t mu
uint8_t postShift
q15_t * recipTable
q15_t energy
q15_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.