def setUp (self):
self.tb = gr.top_block ()
src_file = blocks.file_source(gr.sizeof_gr_complex, "unit_test.tdat")
di = blocks.deinterleave(gr.sizeof_gr_complex)
self.tb.connect(src_file, di)
pd = rmg.pulse_sink_c(4)
pd.enable(160, 480, 0, 8000, "/tmp/qa_results", str(0), 1.1, 10)
self.tb.connect((di,0),(pd,0))
self.tb.connect((di,1),(pd,1))
self.tb.connect((di,2),(pd,2))
self.tb.connect((di,3),(pd,3))
def __init__(self, channels, be_param, directory = "./det_files"):
gr.hier_block2.__init__(self, "software_backend",
gr.io_signature(4, 4, gr.sizeof_gr_complex), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
self.band_rate = be_param.bw
print "Number of Bands: ", be_param.num_bands
print "Band sampling rate: ",self.band_rate
self.directory = directory
if be_param.num_bands > 1:
# Calculate the polyphase filter.
taps = gr_filter.firdes.low_pass(1.0,
self.band_rate*be_param.num_bands,
0.4*self.band_rate ,
0.1*self.band_rate ,
gr_filter.firdes.WIN_HANN)
print "Band filter has", len(taps), "taps"
for j in range(channels):
self.pp_filter.append(gr_filter.pfb.channelizer_ccf(be_param.num_bands,taps,1))
self.connect((self,j), self.pp_filter[j])
for j in range(be_param.num_bands):
# Using default parameters for now. Actual parameters are provided
# when the detector bank is enabled.
new_det = pulse_sink_c(channels)
self.det.append(new_det)
# Connect filter outputs to each detector.
for k in range(channels):
if be_param.num_bands > 1:
self.connect((self.pp_filter[k],j),(new_det,k))
else:
self.connect((self,k),(new_det,k))
#: Band set of current tuning.
self.current_bands = None
# Enable the bands in the first tuning set.
self.enable(be_param.tunings[0].bands)