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220222_final/GW/python/ttt.py
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#!/usr/bin/python3
#import os
"""
Created on Tue Jan 11 2022
@author : ALKADRI Mohammad
E-mail : mohammad.alkadri.95@gmail.com
"""
import threading
import collections
import time
import socket
import string
import numpy as np
from datetime import datetime
def thread_client():
print("Server launched")
a=1
while (a):
sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
sock.connect(('127.0.0.1',4242))
data= sock.recv(1)
data=data.decode()
while (a):
if 'q' in data:
global arret
print("Bye")
time.sleep(1.6)
arret=0
sock.close()
a=0
print("Server done")
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S'))
def Data_RTL():
client = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
ip=socket.gethostbyname("127.0.0.1")
port=1234
address=(ip,port)
client.connect(address)
global arret
N=0
dd = collections.deque(maxlen=9770)
while (arret):
dd.append(client.recv(1024))
N+=1024
a=0
b=[]#np.zeros(10000000)
i=0
for i in range(len(dd)):
b[a:a+1023]=dd[i]
a=a+1024
if ((len(b)%2)==1):
b=b[0:-1]
x=np.array(b)
print(len(x))
#x.tofile("xxxxx.txt")
x=x[0::2]+1j*x[1::2]
x=x-127-127j;
client.close()
return x
def PPS(x):
# identification des fronts montants des 1-PPS sur gateway
pps1=(np.absolute(x)>seuilpps).nonzero()
dpps=np.diff(pps1,n=1,axis=1).reshape(-1)
k=np.array((dpps>50).nonzero()).reshape(-1) ; # (fs*0.1)); % elimine les communications LoRa
pps1=np.array(pps1).flatten()
pps=np.array(pps1)[k.astype(int)];
"""
k=(np.diff(pps,n=1,axis=0)>(fs*0.4)).nonzero() # elimine les fronts descendants
print(len(k))
print(k)
k=np.array(k).reshape(-1)
if k[0]==0:
k=k[1:]; # cas ou` acquisition commence dans un PPS haut
"""
print("pps = ",np.diff(pps,n=1,axis=0))
k=(np.diff(pps,n=1,axis=0)==300000).nonzero()
k=np.array(k).reshape(-1)
try:
ppsgw=pps[k]; # indice des 1-PPS sur gw
except:
ppsgw=[1]
if (ppsgw.size==0):
ppsgw=[1]
print("ppsgw = ", ppsgw)
return ppsgw
def Chirp_detect(x,t):
cc=[]
ddd=x[int((t+1)*1e6):int((t+2)*1e6)]
cc=np.fft.fft(ddd)
cc=np.array(cc)
sssr=[]
sssd=[]
ccris=np.fromfile('ccris.bin',dtype=np.complex128)
ccdec=np.fromfile('ccdec.bin',dtype=np.complex128)
N=0#int((t-1)*1e6)
sssr[N:N+len(ccris)-1]=cc[N:N+len(ccris)]*ccris
sssr=np.array(sssr)
chirp_detect_ris=np.fft.ifft(sssr)
sssd[N:N+len(ccdec)-1]=cc[N:N+len(ccdec)]*ccdec
sssd=np.array(sssd)
chirp_detect_dec=np.fft.ifft(sssd)
chirp_detect=np.absolute(chirp_detect_ris)+np.absolute(chirp_detect_dec);
"""
if (t==1):
chirp_detect.tofile("ch1.txt")
cc.tofile("c1.txt")
if (t==2):
chirp_detect.tofile("ch2.txt")
cc.tofile("c2.txt")
"""
seuil=0.65*max(chirp_detect);
print(seuil)
k=np.array((chirp_detect>seuil).nonzero()).reshape(-1);
try:
debut=int(k[0]-int(d*fs)+(t-1)*1e6+2000000) # fin_gw1=k(end); % /!\ ATTENTION RISQUE D'AVOIR LES DEUX COMM
except:
debut=int((t-1)*1e6+2000000) # pour éviter l'erreur, k[0]=0
print(debut)
return debut
def Time(x,debut,ppsgw,t):
global indice_pps
xx=x[debut:debut+int(d*fs*longueur_chirps)]; # transmission gateway
xx=np.fft.fft(xx)
if t == 1:
ccy=np.fromfile('ccrisy.bin',dtype=np.complex128)
print("ccy1")
else:
ccy=np.fromfile('ccdecy.bin',dtype=np.complex128)
print("ccy2")
y=np.absolute(np.fft.ifft(xx * ccy));
pos1=np.array((y>(max(y)/2)).nonzero()).reshape(-1);
#pos2=np.array(pos1>pos1[0]-200+6*1536)
#pos22=pos2[0]
try:
pos11=pos1[0]; # premier chirp
except:
pos11 =1
yy=y[pos11:pos11+int(d*fs)]
v=np.argmax(yy)
print("1111111111111")
print("pos11 ", pos11)
print("np.max(y) ",np.max(y))
print("np.max(yy) ",np.max(yy))
print("v ",v)
print("yy[v] ",yy[v])
if v !=1529 :
v =v + 1/2*((yy[v-1]-yy[v+1])/(yy[v-1]+yy[v+1]-2*yy[v]))
print("v ",v)
t1=pos11+v
print("t1 ", t1)
debut=pos11+v-1-1+debut
print(debut)
pos22=pos11+6*1536
yy=y[pos22:pos22+int(d*fs)]
v=np.argmax(yy)
print("2222222222222")
print("pos22 ", pos22)
print("np.max(y) ",np.max(y))
print("np.max(yy) ",np.max(yy))
print("v ",v)
print("yy[v] ",yy[v])
if v !=1529 :
v =v + 1/2*((yy[v-1]-yy[v+1])/(yy[v-1]+yy[v+1]-2*yy[v]))
print("v ",v)
t2=pos22+v
print("t2 ", t2)
tg= t2-t1
print("tg ", tg)
if t==1:
if (ppsgw[0]<=debut):
indice_pps=ppsgw[(np.array((ppsgw<debut).nonzero()).reshape(-1))[-1]] # indice_pps=ppsgw(find(ppsgw<debut_gw1)(end));
else:
indice_pps=0
debut=debut-indice_pps # /!\ ecart premiere transmission
return tg, debut, indice_pps
def TGW():
x=Data_RTL()
pps=PPS(x)
debut1 = Chirp_detect(x,1)
print(debut1)
tg1, debut1, indice_pps= Time(x,debut1,pps,1)
x[0:int(debut1+indice_pps+d*fs*800)]=0
print(pps)
print(len(x))
print(debut1)
debut2 = Chirp_detect(x,2)
print(debut2)
tg2, debut2, indice_pps= Time(x,debut2,pps,2)
print(debut2)
#Tgw = debut2-debut1
Tgw =[debut1,debut2-debut1]
Tgw=np.array(Tgw)
return Tgw
def Send(Tgw):
print("Server lanched")
sock_T=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
sock_T.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
sock_T.bind(('127.0.0.1',2222))
sock_T.listen(1)
conn,addr=sock_T.accept()
with conn:
print("connected from", addr)
conn.send(Tgw)
sock_T.close()
while (1):
fs=1.5e6
seuilpps=0.08*127*2;
B=125e3;
d=1/980;
freq_int=1e4;
longueur_chirps=8;
threading.Thread(target=thread_client, args=()).start()
arret = 1
Tgw = TGW()
print("Tgw = ", Tgw)
Send(Tgw)
"""
print("debut_gw1 =",debut_gw1)
print("debut_gw1_vs_1pps = ", debut_gw1_vs_1pps)
"""
############### FIN DE LA PREMIERE MESURE #################
"""
debut_gw2_vs_1pps=debut_gw2-indice_pps # /!\ ecart deuxième transmission
print("debut_gw2_vs_1pps = ", debut_gw2_vs_1pps)
Tgw= debut_gw2_vs_1pps - debut_gw1_vs_1pps;
print("fin du cycle")
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S'))
"""
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