arm_fir_interpolate_instance_q31 Struct Reference

Instance structure for the Q31 FIR interpolator.

Data Fields
uint8_t	L
uint16_t	phaseLength
const q31_t *	pCoeffs
q31_t *	pState

Field Documentation

L

uint8_t L

upsample factor.

pCoeffs

const q31_t* pCoeffs

points to the coefficient array. The array is of length L*phaseLength.

phaseLength

uint16_t phaseLength

length of each polyphase filter component.

pState

q31_t* pState

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