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OpenXG-RAN
Commit 39b9ffd6 authored by Haruki NAOI's avatar Haruki NAOI Committed by shono.takafumi
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Add DC removing to signal power measurement.

parent cb927c7f
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Showing with 147 additions and 86 deletions
openair1/PHY/TOOLS/signal_energy.c
View file @ 39b9ffd6
......@@ -29,6 +29,7 @@
#define shift 4
//#define shift_DC 0
#define SHRT_MIN -32768
#if defined(__x86_64__) || defined(__i386__)
#ifdef LOCALIZATION
......@@ -67,52 +68,86 @@ int32_t subcarrier_energy(int32_t *input,uint32_t length, int32_t *subcarrier_en
}
#endif
//int32_t signal_energy(int32_t *input,uint32_t length)
//{
//
// int32_t i;
// int32_t temp,temp2;
// register __m64 mm0,mm1,mm2,mm3;
// __m64 *in = (__m64 *)input;
//
//
// mm0 = _mm_setzero_si64();//pxor(mm0,mm0);
// mm3 = _mm_setzero_si64();//pxor(mm3,mm3);
//
// for (i=0; i<length>>1; i++) {
//
// mm1 = in[i];
// mm2 = mm1;
// mm1 = _m_pmaddwd(mm1,mm1);
// mm1 = _m_psradi(mm1,shift);// shift any 32 bits blocs of the word by the value shift
// mm0 = _m_paddd(mm0,mm1);// add the two 64 bits words 4 bytes by 4 bytes
// // mm2 = _m_psrawi(mm2,shift_DC);
// mm3 = _m_paddw(mm3,mm2);// add the two 64 bits words 2 bytes by 2 bytes
// }
//
// mm1 = mm0;
// mm0 = _m_psrlqi(mm0,32);
// mm0 = _m_paddd(mm0,mm1);
// temp = _m_to_int(mm0);
// temp/=length;
// temp<<=shift; // this is the average of x^2
//
// // now remove the DC component
//
//
// mm2 = _m_psrlqi(mm3,32);
// mm2 = _m_paddw(mm2,mm3);
// mm2 = _m_pmaddwd(mm2,mm2);
// temp2 = _m_to_int(mm2);
// temp2/=(length*length);
// // temp2<<=(2*shift_DC);
// temp -= temp2;
//
// _mm_empty();
// _m_empty();
//
// return((temp>0)?temp:1);
//-----------------------------------------------------------------
// Average Power calculation with DC removing
//-----------------------------------------------------------------
int32_t signal_energy(int32_t *input,uint32_t length)
{
uint32_t i;
int32_t temp;
__m128i in, in_clp, i16_min, coe1;
__m128 num0, num1, num2, num3, recp1;
int32_t i;
int32_t temp,temp2;
register __m64 mm0,mm1,mm2,mm3;
__m64 *in = (__m64 *)input;
mm0 = _mm_setzero_si64();//pxor(mm0,mm0);
mm3 = _mm_setzero_si64();//pxor(mm3,mm3);
for (i=0; i<length>>1; i++) {
//init
num0 = _mm_setzero_ps();
num1 = _mm_setzero_ps();
i16_min = _mm_set1_epi16(SHRT_MIN);
coe1 = _mm_set1_epi16(1);
recp1 = _mm_rcp_ps(_mm_cvtepi32_ps(_mm_set1_epi32(length)));
mm1 = in[i];
mm2 = mm1;
mm1 = _m_pmaddwd(mm1,mm1);
mm1 = _m_psradi(mm1,shift);// shift any 32 bits blocs of the word by the value shift
mm0 = _m_paddd(mm0,mm1);// add the two 64 bits words 4 bytes by 4 bytes
// mm2 = _m_psrawi(mm2,shift_DC);
mm3 = _m_paddw(mm3,mm2);// add the two 64 bits words 2 bytes by 2 bytes
//Acc
for (i = 0; i < (length >> 2); i++) {
in = _mm_loadu_si128((__m128i *)input);
in_clp = _mm_subs_epi16(in, _mm_cmpeq_epi16(in, i16_min));//if in=SHRT_MIN in+1, else in
num0 = _mm_add_ps(num0, _mm_cvtepi32_ps(_mm_madd_epi16(in_clp, in_clp)));
num1 = _mm_add_ps(num1, _mm_cvtepi32_ps(_mm_madd_epi16(in, coe1)));//DC
input += 4;
}
//Ave
num2 = _mm_dp_ps(num0, recp1, 0xFF);//AC power
num3 = _mm_dp_ps(num1, recp1, 0xFF);//DC
num3 = _mm_mul_ps(num3, num3); //DC power
//remove DC
temp = _mm_cvtsi128_si32(_mm_cvttps_epi32(_mm_sub_ps(num2, num3)));
mm1 = mm0;
mm0 = _m_psrlqi(mm0,32);
mm0 = _m_paddd(mm0,mm1);
temp = _m_to_int(mm0);
temp/=length;
temp<<=shift; // this is the average of x^2
// now remove the DC component
mm2 = _m_psrlqi(mm3,32);
mm2 = _m_paddw(mm2,mm3);
mm2 = _m_pmaddwd(mm2,mm2);
temp2 = _m_to_int(mm2);
temp2/=(length*length);
// temp2<<=(2*shift_DC);
temp -= temp2;
_mm_empty();
_m_empty();
return temp;
return((temp>0)?temp:1);
}
int32_t signal_energy_amp_shift(int32_t *input,uint32_t length)
......@@ -164,60 +199,86 @@ int32_t signal_energy_amp_shift(int32_t *input,uint32_t length)
int32_t signal_energy_nodc(int32_t *input,uint32_t length)
{
int32_t i;
int32_t temp;
register __m64 mm0,mm1;//,mm2,mm3;
__m64 *in = (__m64 *)input;
#ifdef MAIN
int16_t *printb;
#endif
// int32_t i;
// int32_t temp;
// register __m64 mm0,mm1;//,mm2,mm3;
// __m64 *in = (__m64 *)input;
//
//#ifdef MAIN
// int16_t *printb;
//#endif
//
// mm0 = _mm_setzero_si64();//_pxor(mm0,mm0);
// // mm3 = _mm_setzero_si64();//pxor(mm3,mm3);
//
// for (i=0; i<length>>1; i++) {
//
// mm1 = in[i];
// mm1 = _m_pmaddwd(mm1,mm1);// SIMD complex multiplication
// mm1 = _m_psradi(mm1,shift);
// mm0 = _m_paddd(mm0,mm1);
// // temp2 = mm0;
// // printf("%d %d\n",((int *)&in[i])[0],((int *)&in[i])[1]);
//
//
// // printb = (int16_t *)&mm2;
// // printf("mm2 %d : %d %d %d %d\n",i,printb[0],printb[1],printb[2],printb[3]);
//
//
// }
//
// /*
// #ifdef MAIN
// printb = (int16_t *)&mm3;
// printf("%d %d %d %d\n",printb[0],printb[1],printb[2],printb[3]);
// #endif
// */
// mm1 = mm0;
//
// mm0 = _m_psrlqi(mm0,32);
//
// mm0 = _m_paddd(mm0,mm1);
//
// temp = _m_to_int(mm0);
//
// temp/=length;
// temp<<=shift; // this is the average of x^2
//
//#ifdef MAIN
// printf("E x^2 = %d\n",temp);
//#endif
// _mm_empty();
// _m_empty();
//
//
//
// return((temp>0)?temp:1);
mm0 = _mm_setzero_si64();//_pxor(mm0,mm0);
// mm3 = _mm_setzero_si64();//pxor(mm3,mm3);
for (i=0; i<length>>1; i++) {
mm1 = in[i];
mm1 = _m_pmaddwd(mm1,mm1);// SIMD complex multiplication
mm1 = _m_psradi(mm1,shift);
mm0 = _m_paddd(mm0,mm1);
// temp2 = mm0;
// printf("%d %d\n",((int *)&in[i])[0],((int *)&in[i])[1]);
// printb = (int16_t *)&mm2;
// printf("mm2 %d : %d %d %d %d\n",i,printb[0],printb[1],printb[2],printb[3]);
int32_t i;
int32_t temp;
__m128i in;
__m128 mm0;
//init
mm0 = _mm_setzero_ps();
//Acc
for (i=0; i<(length>>2); i++) {
in = _mm_loadu_si128((__m128i *)input);
mm0 = _mm_add_ps(mm0,_mm_cvtepi32_ps(_mm_madd_epi16(in,in)));
input += 4;
}
//Ave
temp = (int)((((float*)&mm0)[0] +
((float*)&mm0)[1] +
((float*)&mm0)[2] +
((float*)&mm0)[3])/(float)length);
/*
#ifdef MAIN
printb = (int16_t *)&mm3;
printf("%d %d %d %d\n",printb[0],printb[1],printb[2],printb[3]);
#endif
*/
mm1 = mm0;
mm0 = _m_psrlqi(mm0,32);
mm0 = _m_paddd(mm0,mm1);
temp = _m_to_int(mm0);
temp/=length;
temp<<=shift; // this is the average of x^2
#ifdef MAIN
printf("E x^2 = %d\n",temp);
#endif
_mm_empty();
_m_empty();
return temp;
return((temp>0)?temp:1);
}
#elif defined(__arm__)
......
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