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fft scaling fix

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This commit is contained in:
Guy De Souza
2018-06-01 13:28:38 +02:00
parent 4922eea5f0
commit a985544627
3 changed files with 12 additions and 11 deletions
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openair1/PHY/LTE_ESTIMATION/lte_sync_timefreq.c
+2 -1
View File
@@ -81,7 +81,8 @@ void lte_sync_timefreq(PHY_VARS_UE *ue,int band,unsigned int DL_freq)
//compute frequency-domain representation of 6144-sample chunk
dft6144((int16_t *)rxp,
sp);
sp,
1);
/*
openair1/PHY/LTE_TRANSPORT/prach.c
+6 -6
View File
@@ -357,10 +357,10 @@ void rx_prach0(PHY_VARS_eNB *eNB,
if (prach_fmt == 4) {
dft256(prach2,rxsigF[aa],1);
} else {
dft3072(prach2,rxsigF[aa]);
dft3072(prach2,rxsigF[aa],1);
if (prach_fmt>1)
dft3072(prach2+6144,rxsigF[aa]+6144);
dft3072(prach2+6144,rxsigF[aa]+6144,1);
}
break;
@@ -371,10 +371,10 @@ void rx_prach0(PHY_VARS_eNB *eNB,
dft1024(prach2,rxsigF[aa],1);
fft_size = 1024;
} else {
dft6144(prach2,rxsigF[aa]);
dft6144(prach2,rxsigF[aa],1);
if (prach_fmt>1)
dft6144(prach2+12288,rxsigF[aa]+12288);
dft6144(prach2+12288,rxsigF[aa]+12288,1);
fft_size = 6144;
}
@@ -395,7 +395,7 @@ void rx_prach0(PHY_VARS_eNB *eNB,
case 75:
if (prach_fmt == 4) {
dft3072(prach2,rxsigF[aa]);
dft3072(prach2,rxsigF[aa],1);
} else {
dft18432(prach2,rxsigF[aa]);
@@ -417,7 +417,7 @@ void rx_prach0(PHY_VARS_eNB *eNB,
}
} else {
if (prach_fmt == 4) {
dft3072(prach2,rxsigF[aa]);
dft3072(prach2,rxsigF[aa],1);
} else {
dft18432(prach2,rxsigF[aa]);
openair1/PHY/TOOLS/tools_defs.h
+4 -4
View File
@@ -174,25 +174,25 @@ This function performs optimized fixed-point radix-2 FFT/IFFT.
void idft1536(int16_t *sigF,int16_t *sig,int scale);
void idft6144(int16_t *sigF,int16_t *sig);
void idft6144(int16_t *sigF,int16_t *sig, int scale);
void idft12288(int16_t *sigF,int16_t *sig);
void idft18432(int16_t *sigF,int16_t *sig);
void idft3072(int16_t *sigF,int16_t *sig);
void idft3072(int16_t *sigF,int16_t *sig, int scale);
void idft24576(int16_t *sigF,int16_t *sig);
void dft1536(int16_t *sigF,int16_t *sig,int scale);
void dft6144(int16_t *sigF,int16_t *sig);
void dft6144(int16_t *sigF,int16_t *sig, int scale);
void dft12288(int16_t *sigF,int16_t *sig);
void dft18432(int16_t *sigF,int16_t *sig);
void dft3072(int16_t *sigF,int16_t *sig);
void dft3072(int16_t *sigF,int16_t *sig, int scale);
void dft24576(int16_t *sigF,int16_t *sig);