arm_fir_decimate_instance_q31 Struct Reference

Instance structure for the Q31 FIR decimator.

Data Fields
uint8_t	M
uint16_t	numTaps
const q31_t *	pCoeffs
q31_t *	pState

Field Documentation

uint8_t arm_fir_decimate_instance_q31::M

decimation factor.

uint16_t arm_fir_decimate_instance_q31::numTaps

number of coefficients in the filter.

const q31_t* arm_fir_decimate_instance_q31::pCoeffs

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

q31_t* arm_fir_decimate_instance_q31::pState

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