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CMSIS-DSP
Version 1.5.2
CMSIS DSP Software Library
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Instance structure for the Q31 FIR interpolator.
Data Fields | |
| uint8_t | L |
| uint16_t | phaseLength |
| q31_t * | pCoeffs |
| q31_t * | pState |
| uint8_t arm_fir_interpolate_instance_q31::L |
upsample factor.
Referenced by arm_fir_interpolate_init_q31(), and arm_fir_interpolate_q31().
| q31_t* arm_fir_interpolate_instance_q31::pCoeffs |
points to the coefficient array. The array is of length L*phaseLength.
Referenced by arm_fir_interpolate_init_q31(), and arm_fir_interpolate_q31().
| uint16_t arm_fir_interpolate_instance_q31::phaseLength |
length of each polyphase filter component.
Referenced by arm_fir_interpolate_init_q31(), and arm_fir_interpolate_q31().
| q31_t* arm_fir_interpolate_instance_q31::pState |
points to the state variable array. The array is of length blockSize+phaseLength-1.
Referenced by arm_fir_interpolate_init_q31(), and arm_fir_interpolate_q31().