Merge commit 'v3.3.0' into upstream

[debian/gnuradio] / gr-msdd6000 / src / python_test / capture_tcp_one_set.py

diff --git a/gr-msdd6000/src/python_test/capture_tcp_one_set.py b/gr-msdd6000/src/python_test/capture_tcp_one_set.py
new file mode 100644 (file)
index 0000000..7a106a6
--- /dev/null
+++ b/gr-msdd6000/src/python_test/capture_tcp_one_set.py
@@ -0,0 +1,156 @@
+#!/usr/bin/python
+
+from socket import *
+import string
+import time
+import struct;
+import random;
+import array;
+import cmath;
+from numpy import *;
+from numpy.fft import *;
+from pylab import *;
+
+myport = random.randint(1025,65535);
+filename = "output.dat";
+
+port = 10000
+host = "10.45.4.46"
+#host = "10.45.4.41"
+myaddr = ('',myport);
+
+buf = 100000;
+
+TCPSock = socket(AF_INET,SOCK_STREAM);
+TCPSock.bind(myaddr);
+TCPSock.connect((host,port));
+
+#f_mhz = 2647; # roof ofdm
+if(len(sys.argv)!= 3):
+       print "usage: %s  fc_ghz   decim_pow2_exponent"%(sys.argv[0]);
+       sys.exit(-1);
+
+f_mhz = float(sys.argv[1])*1000;
+decim = int(sys.argv[2]);
+
+#f_mhz = 3500;
+#f_mhz = 2600;
+f_hz = 0;      # offset        
+gain = 0;      
+window = 3;    #0=rect, 1=hanning, 2=hamming, 3=blackman
+
+samples = 65536;
+#samples = 16777216;
+samples = samples*4;   #bytes of data we are requesting
+samples=samples*2;
+#decim = 2;    #0-8   (3 => 2^3 = 8)  
+decim = decim+16;      # +16 to use 16bit floats instead of 32 bit floats
+mode = 0;      #0=IQ, 1=MAG, 2=MAGDB
+sets = 1;
+
+raw_data = struct.pack("<IIIIIIII", 0x01, 0x18, f_mhz, f_hz, gain, samples, decim, sets);
+
+data = raw_data;
+
+TCPSock.send(data);
+
+print "sent"
+
+
+
+count = 0;
+
+total_data = [];
+
+state = 0;
+
+vals = [];
+mags = [];
+re = [];
+
+sample_count = 0;
+IQ_bytes=0;
+while(TCPSock):
+       if(state==0):
+               data = TCPSock.recv(4);
+               [opcode] = struct.unpack("<I", data);
+               print "Opcode = %d"%(opcode);
+               if(opcode==1):
+                       state = 1;
+
+       elif(state==1):
+               data = TCPSock.recv(7*4);
+               args = struct.unpack("<IIIIIII", data);
+               print ["reply_len", "freq_mhz", "offset_hz", "gain", "sample_bytes", "decim", "sets_remain"];
+               print args;
+               IQ_bytes = args[0] - 7*4;
+               state =2;
+
+       elif(state==2):
+               data = TCPSock.recv(4);
+               [i,q] = struct.unpack("<hh", data);
+               tmp = complex(i,q);
+
+               re.append(i);
+               vals.append(tmp);
+               mags.append(abs(tmp));
+
+
+               sample_count = sample_count + 1;
+#              print "sample count %d"%(sample_count)  
+
+               IQ_bytes = IQ_bytes - 4;
+               if(IQ_bytes < 4):
+                       print "got all data (total %d)"%(sample_count);
+                       print "remaining: %d"%(IQ_bytes);
+                       break;
+
+
+TCPSock.close();
+
+print "done"
+nmags = []
+for i in mags:
+       if i == 0:
+               i=1;
+       nmags.append(i);
+
+
+subplot(2,1,1);
+plot(nmags);
+#plot(10*log10(nmags));
+
+dlen = len(vals);
+fftlen = (dlen-1024)/1024;
+
+fft_data = []
+for i in range(1, dlen-1025, 1024):
+
+       t_in = [];
+       for ind in range(i, i+1024):
+               t_in.append(vals[ind]);
+
+       #tmp = 20*log10(fftshift(fft(t_in)));
+       tmp = (fftshift(fft(t_in)));
+
+       if(len(fft_data) == 0):
+               for ind in range(0,1024):
+                       fft_data.append( tmp[ind] );
+       else:
+               for ind in range(0,1024):
+                       fft_data[ind] = fft_data[ind] + tmp[ind];
+
+#fft_data = 20*log10(fftshift(fft(vals)));
+
+
+subplot(2,1,2);
+plot(fft_data);
+show();
+
+f = open(filename, "w");
+for sample in vals:
+       binchunk = struct.pack("<ff",float(sample.real), float(sample.imag) );
+       f.write(binchunk);
+f.close();
+
+