def run(gain,iter,rate,freq,front_end, f0,f1, lapse, points, ntones, delay_duration, delay_over):
try:
if u.LINE_DELAY[str(int(rate/1e6))]: pass
except KeyError:
if delay_over is None:
print "Cannot find line delay. Measuring line delay before VNA:"
filename = u.measure_line_delay(rate, freq, front_end, USRP_num=0, tx_gain=0, rx_gain=0, output_filename=None, compensate = True, duration = delay_duration)
delay = u.analyze_line_delay(filename, True)
u.write_delay_to_file(filename, delay)
u.load_delay_from_file(filename)
else:
u.set_line_delay(rate, delay_over)
if ntones ==1:
ntones = None
vna_filename = u.Single_VNA(start_f = f0, last_f = f1, measure_t = lapse, n_points = points, tx_gain = gain, Rate=rate, decimation=True, RF=freq, Front_end=front_end,
Device=None, output_filename=None, Multitone_compensation=ntones, Iterations=iter, verbose=False)
return vna_filename
def run(rate, freq, front_end, duration):
'''
Basic test of the line delay functionality.
:param rate: USRP sampling rate.
:param freq: LO frequncy.
:param front_end: A or B front end.
:return: None
'''
filename = u.measure_line_delay(rate,
freq,
front_end,
USRP_num=0,
tx_gain=0,
rx_gain=0,
output_filename=None,
compensate=True,
duration=duration)
delay = u.analyze_line_delay(filename, True)
try:
delay += u.LINE_DELAY[str(int(rate / 1e6))] * 1e-9
except KeyError:
pass
u.write_delay_to_file(filename, delay)
u.load_delay_from_file(filename)
def run(rate,freq_a,freq_b, f0a,f1a,f0b,f1b, lapse, points, gain_a, gain_b):
try:
if u.LINE_DELAY[str(int(rate/1e6))]: pass
except KeyError:
print "Cannot find line delay. Measuring line delay before VNA:"
front_end = 'A'
filename = u.measure_line_delay(rate, freq_a, front_end, USRP_num=0, tx_gain=0, rx_gain=0, output_filename=None, compensate = True)
delay = u.analyze_line_delay(filename, True)
u.write_delay_to_file(filename, delay)
u.load_delay_from_file(filename)
vna_filename = u.Dual_VNA(
start_f_A = f0a,
last_f_A = f1a,
start_f_B = f0b,
last_f_B = f1b,
measure_t = lapse,
n_points = points,
tx_gain_A = gain_a,
tx_gain_B = gain_b,
Rate = None,
decimation = True,
RF_A = freq_a,
RF_B = freq_b,
Device = None,
output_filename = None,
Multitone_compensation_A = None,
Multitone_compensation_B = None,
Iterations = 1,
verbose = False
)
return vna_filename
if not u.Connect():
u.print_error("Cannot find the GPU server!")
exit()
#measure line delay
filename = u.measure_line_delay(seed_rate,
seed_rf,
str(args.frontend),
USRP_num=0,
tx_gain=0,
rx_gain=0,
output_filename=None,
compensate=True,
duration=0.1)
delay = u.analyze_line_delay(filename, True)
u.write_delay_to_file(filename, delay)
u.load_delay_from_file(filename)
vna_seed_filename = u.Single_VNA(start_f=seed_start_f,
last_f=seed_end_f,
measure_t=seed_measure_t,
n_points=seed_points,
tx_gain=seed_gain,
Rate=seed_rate,
decimation=True,
RF=seed_rf,
Front_end=str(args.frontend),
Device=None,
output_filename=None,
Multitone_compensation=seed_ntones,
def vna_run(tx_gain,
rx_gain,
iter,
rate,
freq,
front_end,
f0,
f1,
lapse,
points,
ntones,
delay_duration,
delay_over='null',
output_filename=None,
subfolder=None):
if delay_over != 'null':
delay = delay_over
u.set_line_delay(rate, delay_over * 1e9)
else:
try:
if u.LINE_DELAY[str(int(rate / 1e6))]:
delay = u.LINE_DELAY[str(int(rate / 1e6))] * 1e-9
except KeyError:
print("Cannot find line delay. Measuring line delay before VNA:")
delay_filename = None
if (output_filename != None):
delay_filename = output_filename + '_delay'
filename = u.measure_line_delay(rate,
freq,
front_end,
USRP_num=0,
tx_gain=tx_gain,
rx_gain=rx_gain,
output_filename=delay_filename,
compensate=True,
duration=delay_duration)
print("Analyziung line delay file...")
delay = u.analyze_line_delay(filename, False)
print("Done.")
print("Writing line delay to file...")
u.write_delay_to_file(filename, delay)
print("Done.")
print("Loading line delay from file...")
u.load_delay_from_file(filename)
print("Done.")
if ntones == 1:
ntones = None
print("Starting single VNA run...")
vna_filename = u.Single_VNA(start_f=f0,
last_f=f1,
measure_t=lapse,
n_points=points,
tx_gain=tx_gain,
rx_gain=rx_gain,
Rate=rate,
decimation=True,
RF=freq,
Front_end=front_end,
Device=None,
output_filename=output_filename,
Multitone_compensation=ntones,
Iterations=iter,
verbose=False,
subfolder=subfolder)
print("Done.")
return vna_filename, delay