CMSIS-DSP: arm_iir_lattice_instance_q15 Struct Reference

| CMSIS-DSP Version 1.4.7 CMSIS DSP Software Library

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arm_iir_lattice_instance_q15 Struct Reference

Instance structure for the Q15 IIR lattice filter.

## Data Fields

uint16_t | numStages
q15_t * | pState
q15_t * | pkCoeffs
q15_t * | pvCoeffs

## Field Documentation

uint16_t arm_iir_lattice_instance_q15::numStages

number of stages in the filter.

Referenced by arm_iir_lattice_init_q15(), and arm_iir_lattice_q15().

q15_t* arm_iir_lattice_instance_q15::pkCoeffs

points to the reflection coefficient array. The array is of length numStages.

Referenced by arm_iir_lattice_init_q15(), and arm_iir_lattice_q15().

q15_t* arm_iir_lattice_instance_q15::pState

points to the state variable array. The array is of length numStages+blockSize.

Referenced by arm_iir_lattice_init_q15(), and arm_iir_lattice_q15().

q15_t* arm_iir_lattice_instance_q15::pvCoeffs

points to the ladder coefficient array. The array is of length numStages+1.

Referenced by arm_iir_lattice_init_q15(), and arm_iir_lattice_q15().