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arm_lms_norm_instance_q31 Struct Reference
Instance structure for the Q31 normalized LMS filter. More...
#include <arm_math.h>
Data Fields | |
| uint16_t | numTaps |
| number of coefficients in the filter. | |
| q31_t * | pState |
| points to the state variable array. | |
| q31_t * | pCoeffs |
| points to the coefficient array. | |
| q31_t | mu |
| step size that controls filter coefficient updates. | |
| uint8_t | postShift |
| bit shift applied to coefficients. | |
| q31_t * | recipTable |
| points to the reciprocal initial value table. | |
| q31_t | energy |
| saves previous frame energy. | |
| q31_t | x0 |
| saves previous input sample. | |
Detailed Description
Instance structure for the Q31 normalized LMS filter.
Definition at line 4128 of file unsupported/dsp/cmsis_dsp/arm_math.h.
Field Documentation
| q31_t energy |
saves previous frame energy.
Definition at line 4136 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| q31_t mu |
step size that controls filter coefficient updates.
Definition at line 4133 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| uint16_t numTaps |
number of coefficients in the filter.
Definition at line 4130 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| q31_t* pCoeffs |
points to the coefficient array.
The array is of length numTaps.
Definition at line 4132 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| uint8_t postShift |
bit shift applied to coefficients.
Definition at line 4134 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| q31_t* pState |
points to the state variable array.
The array is of length numTaps+blockSize-1.
Definition at line 4131 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| q31_t* recipTable |
points to the reciprocal initial value table.
Definition at line 4135 of file unsupported/dsp/cmsis_dsp/arm_math.h.
| q31_t x0 |
saves previous input sample.
Definition at line 4137 of file unsupported/dsp/cmsis_dsp/arm_math.h.
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