diff options
Diffstat (limited to 'gr-uhd/examples/python/usrp_spectrum_sense.py')
| -rwxr-xr-x | gr-uhd/examples/python/usrp_spectrum_sense.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gr-uhd/examples/python/usrp_spectrum_sense.py b/gr-uhd/examples/python/usrp_spectrum_sense.py index ba45a2e80e..b1ea6b44d8 100755 --- a/gr-uhd/examples/python/usrp_spectrum_sense.py +++ b/gr-uhd/examples/python/usrp_spectrum_sense.py @@ -33,6 +33,7 @@ import math import struct import threading from datetime import datetime +import time sys.stderr.write("Warning: this may have issues on some machines+Python version combinations to seg fault due to the callback in bin_statitics.\n\n") @@ -271,6 +272,8 @@ def main_loop(tb): bin_start = int(tb.fft_size * ((1 - 0.75) / 2)) bin_stop = int(tb.fft_size - bin_start) + timestamp = 0 + centerfreq = 0 while 1: # Get the next message sent from the C++ code (blocking call). @@ -282,6 +285,15 @@ def main_loop(tb): # m.raw_data is a string that contains the binary floats. # You could write this as binary to a file. + # Scanning rate + if timestamp == 0: + timestamp = time.time() + centerfreq = m.center_freq + if m.center_freq < centerfreq: + sys.stderr.write("scanned %.1fMHz in %.1fs\n" % ((centerfreq - m.center_freq)/1.0e6, time.time() - timestamp)) + timestamp = time.time() + centerfreq = m.center_freq + for i_bin in range(bin_start, bin_stop): center_freq = m.center_freq |