Eli Hughes
V4.0.1 of the ARM CMSIS DSP libraries. Note that arm_bitreversal2.s, arm_cfft_f32.c and arm_rfft_fast_f32.c had to be removed. arm_bitreversal2.s will not assemble with the online tools. So, the fast f32 FFT functions are not yet available. All the other FFT functions are available.
Dependents: MPU9150_Example fir_f32 fir_f32 MPU9150_nucleo_noni2cdev ... more
arm_lms_norm_instance_q15 Struct Reference
Instance structure for the Q15 normalized LMS filter. More...
#include <arm_math.h>
Data Fields | |
| uint16_t | numTaps |
| Number of coefficients in the filter. | |
| q15_t * | pState |
| points to the state variable array. | |
| q15_t * | pCoeffs |
| points to the coefficient array. | |
| q15_t | mu |
| step size that controls filter coefficient updates. | |
| uint8_t | postShift |
| bit shift applied to coefficients. | |
| q15_t * | recipTable |
| Points to the reciprocal initial value table. | |
| q15_t | energy |
| saves previous frame energy. | |
| q15_t | x0 |
| saves previous input sample. | |
Detailed Description
Instance structure for the Q15 normalized LMS filter.
Definition at line 4330 of file arm_math.h.
Field Documentation
| q15_t energy |
saves previous frame energy.
Definition at line 4338 of file arm_math.h.
| q15_t mu |
step size that controls filter coefficient updates.
Definition at line 4335 of file arm_math.h.
| uint16_t numTaps |
Number of coefficients in the filter.
Definition at line 4332 of file arm_math.h.
| q15_t* pCoeffs |
points to the coefficient array.
The array is of length numTaps.
Definition at line 4334 of file arm_math.h.
| uint8_t postShift |
bit shift applied to coefficients.
Definition at line 4336 of file arm_math.h.
| q15_t* pState |
points to the state variable array.
The array is of length numTaps+blockSize-1.
Definition at line 4333 of file arm_math.h.
| q15_t* recipTable |
Points to the reciprocal initial value table.
Definition at line 4337 of file arm_math.h.
| q15_t x0 |
saves previous input sample.
Definition at line 4339 of file arm_math.h.
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