CMSIS-DSP  Version 1.7.0
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arm_fir_interpolate_instance_q31 Struct Reference

Instance structure for the Q31 FIR interpolator.

Data Fields

uint8_t L
 
uint16_t phaseLength
 
const q31_tpCoeffs
 
q31_tpState
 

Field Documentation

uint8_t arm_fir_interpolate_instance_q31::L

upsample factor.

const q31_t* arm_fir_interpolate_instance_q31::pCoeffs

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

uint16_t arm_fir_interpolate_instance_q31::phaseLength

length of each polyphase filter component.

q31_t* arm_fir_interpolate_instance_q31::pState

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