maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

astyle --recursive --indent=spaces=2 --style=kr --indent-col1-comments --break-blocks --convert-tabs --max-code-length=200

Browse Source 
This is done for better merging branch/LG_PRE_RELEASE_0.3 into trunk (same process is applied on this branch)

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7073 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
Lionel Gauthier
2015-04-09 09:29:12 +00:00
parent f0a8a0b3b5
commit 059a0a3fdc
2044 changed files with 1182666 additions and 1145123 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/SIMULATION/RF/dac.c
+42 -36
View File
@@ -1,5 +1,5 @@
/*******************************************************************************
OpenAirInterface
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
@@ -14,15 +14,15 @@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
@@ -32,37 +32,40 @@
#include "PHY/TOOLS/defs.h"
void dac(double **s_re,
double **s_im,
uint32_t **input,
uint32_t input_offset,
uint32_t nb_tx_antennas,
uint32_t length,
double amp_dBm,
uint8_t B,
uint32_t meas_length,
uint32_t meas_offset) {
double **s_im,
uint32_t **input,
uint32_t input_offset,
uint32_t nb_tx_antennas,
uint32_t length,
double amp_dBm,
uint8_t B,
uint32_t meas_length,
uint32_t meas_offset)
{
int i;
int aa;
double V=0.0,amp;
for (i=0;i<length;i++) {
for (aa=0;aa<nb_tx_antennas;aa++) {
for (i=0; i<length; i++) {
for (aa=0; aa<nb_tx_antennas; aa++) {
s_re[aa][i] = ((double)(((short *)input[aa]))[((i+input_offset)<<1)])/(1<<(B-1));
s_im[aa][i] = ((double)(((short *)input[aa]))[((i+input_offset)<<1)+1])/(1<<(B-1));
}
}
for (i=meas_offset;i<meas_offset+meas_length;i++) {
for (aa=0;aa<nb_tx_antennas;aa++) {
V= V + (s_re[aa][i]*s_re[aa][i]) + (s_im[aa][i]*s_im[aa][i]);
for (i=meas_offset; i<meas_offset+meas_length; i++) {
for (aa=0; aa<nb_tx_antennas; aa++) {
V= V + (s_re[aa][i]*s_re[aa][i]) + (s_im[aa][i]*s_im[aa][i]);
}
}
V /= (meas_length);
#ifdef DEBUG_DAC
printf("DAC: 10*log10(V)=%f (%f)\n",10*log10(V),V);
#endif
if (V) {
amp = pow(10.0,.1*amp_dBm)/V;
amp = sqrt(amp);
@@ -70,8 +73,8 @@ void dac(double **s_re,
amp = 1;
}
for (i=0;i<length;i++) {
for (aa=0;aa<nb_tx_antennas;aa++) {
for (i=0; i<length; i++) {
for (aa=0; aa<nb_tx_antennas; aa++) {
s_re[aa][i] *= amp;
s_im[aa][i] *= amp;
}
@@ -79,27 +82,30 @@ void dac(double **s_re,
}
double dac_fixed_gain(double **s_re,
double **s_im,
uint32_t **input,
uint32_t input_offset,
uint32_t nb_tx_antennas,
uint32_t length,
uint32_t input_offset_meas,
uint32_t length_meas,
uint8_t B,
double txpwr_dBm,
int NB_RE) {
double **s_im,
uint32_t **input,
uint32_t input_offset,
uint32_t nb_tx_antennas,
uint32_t length,
uint32_t input_offset_meas,
uint32_t length_meas,
uint8_t B,
double txpwr_dBm,
int NB_RE)
{
int i;
int aa;
double amp,amp1;
amp = //sqrt(NB_RE)*pow(10.0,.05*txpwr_dBm)/sqrt(nb_tx_antennas); //this is amp per tx antenna
pow(10.0,.05*txpwr_dBm)/sqrt(nb_tx_antennas); //this is amp per tx antenna
amp1 = 0;
for (aa=0;aa<nb_tx_antennas;aa++) {
for (aa=0; aa<nb_tx_antennas; aa++) {
amp1 += sqrt((double)signal_energy((int32_t*)&input[aa][input_offset_meas],length_meas)/NB_RE);
}
amp1/=nb_tx_antennas;
// printf("DAC: amp1 %f dB (%d,%d), tx_power %f\n",20*log10(amp1),input_offset,input_offset_meas,txpwr_dBm);
@@ -109,14 +115,14 @@ double dac_fixed_gain(double **s_re,
amp1 = AMP/2;
else if (nb_tx_antennas==4)
amp1 = ((AMP*ONE_OVER_SQRT2_Q15)>>16);
else //assume (nb_tx_antennas==1)
else //assume (nb_tx_antennas==1)
amp1 = ((AMP*ONE_OVER_SQRT2_Q15)>>15);
amp1 = amp1*sqrt(512.0/300.0); //account for loss due to null carriers
//printf("DL: amp1 %f dB (%d,%d), tx_power %f\n",20*log10(amp1),input_offset,input_offset_meas,txpwr_dBm);
*/
for (i=0;i<length;i++) {
for (aa=0;aa<nb_tx_antennas;aa++) {
for (i=0; i<length; i++) {
for (aa=0; aa<nb_tx_antennas; aa++) {
s_re[aa][i] = amp*((double)(((short *)input[aa]))[((i+input_offset)<<1)])/amp1; ///(1<<(B-1));
s_im[aa][i] = amp*((double)(((short *)input[aa]))[((i+input_offset)<<1)+1])/amp1; ///(1<<(B-1));
}