ex_dsqfirlms.c

/* 
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*/

#include "examples_doc_sq.h"
#include "dsp.h"

#define VLENGTH   10
#define NUM_TAPS  3

int main(void)
{
    ippsq_lms_instance_q15 S;
    q15_t coeffs[NUM_TAPS]   = { 1000, 2, -7000 };
    q15_t stateDst[NUM_TAPS + VLENGTH - 1] = { 0 };
    q15_t src[VLENGTH] = { 0, 1, 2, 32765, -32765, -5, -6, -7, 23423, 4564 };
    q15_t ref[VLENGTH] = { 2, 32765, -32765, -5, -6, -7, 23423, 4564, 0, 1, };
    q15_t dst[VLENGTH];
    q15_t err[VLENGTH];

    ippsq_lms_init_q15(&S, NUM_TAPS, coeffs, stateDst, 1000, VLENGTH, 0);
    printf_v16s("Before:\n stateDst =\n", " %d", S.pState, S.numTaps + VLENGTH - 1);
    printf_v16s(" src =\n", " %d", src, VLENGTH);
    printf_v16s(" ref =\n", " %d", ref, VLENGTH);
    printf_v16s(" coeffs =\n", " %d", S.pCoeffs, S.numTaps);
    QM_PRINTF("mu = %d\n", S.mu);
    QM_PRINTF("post shift = %d\n", S.postShift);

    ippsq_lms_q15(&S, src, ref, dst, err, VLENGTH);

    printf_v16s("After:\n stateDst =\n", " %d", S.pState, S.numTaps + VLENGTH - 1);
    printf_v16s(" dst =\n", " %d", dst, VLENGTH);
    printf_v16s(" err =\n", " %d", err, VLENGTH);

    CONTROL_RETURN;
}
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