diff options
Diffstat (limited to 'gr-analog/python/analog/nbfm_tx.py')
| -rw-r--r-- | gr-analog/python/analog/nbfm_tx.py | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/gr-analog/python/analog/nbfm_tx.py b/gr-analog/python/analog/nbfm_tx.py index aa6c1eccc7..a7620451eb 100644 --- a/gr-analog/python/analog/nbfm_tx.py +++ b/gr-analog/python/analog/nbfm_tx.py @@ -19,14 +19,18 @@ # Boston, MA 02110-1301, USA. # +from __future__ import print_function +from __future__ import absolute_import +from __future__ import division +from __future__ import unicode_literals + import math + from gnuradio import gr, filter -from fm_emph import fm_preemph +from .fm_emph import fm_preemph + +from . import analog_swig as analog -try: - from gnuradio import analog -except ImportError: - import analog_swig as analog class nbfm_tx(gr.hier_block2): def __init__(self, audio_rate, quad_rate, tau=75e-6, max_dev=5e3, fh=-1.0): @@ -46,16 +50,16 @@ class nbfm_tx(gr.hier_block2): quad_rate must be an integer multiple of audio_rate. """ - gr.hier_block2.__init__(self, "nbfm_tx", - gr.io_signature(1, 1, gr.sizeof_float), # Input signature - gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature + gr.hier_block2.__init__(self, "nbfm_tx", + gr.io_signature(1, 1, gr.sizeof_float), # Input signature + gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature # FIXME audio_rate and quad_rate ought to be exact rationals self._audio_rate = audio_rate = int(audio_rate) self._quad_rate = quad_rate = int(quad_rate) if quad_rate % audio_rate != 0: - raise ValueError, "quad_rate is not an integer multiple of audio_rate" + raise ValueError("quad_rate is not an integer multiple of audio_rate") do_interp = audio_rate != quad_rate @@ -66,10 +70,10 @@ class nbfm_tx(gr.hier_block2): quad_rate, # Fs 4500, # passband cutoff 7000, # stopband cutoff - 0.1, # passband ripple dB + 0.1, # passband ripple dB 40) # stopband atten dB - #print "len(interp_taps) =", len(interp_taps) + #print("len(interp_taps) =", len(interp_taps)) self.interpolator = filter.interp_fir_filter_fff (interp_factor, interp_taps) self.preemph = fm_preemph(quad_rate, tau=tau, fh=fh) @@ -90,10 +94,10 @@ class nbfm_tx(gr.hier_block2): class ctcss_gen_f(gr.hier_block2): def __init__(self, sample_rate, tone_freq): - gr.hier_block2.__init__(self, "ctcss_gen_f", - gr.io_signature(0, 0, 0), # Input signature - gr.io_signature(1, 1, gr.sizeof_float)) # Output signature + gr.hier_block2.__init__(self, "ctcss_gen_f", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(1, 1, gr.sizeof_float)) # Output signature self.plgen = analog.sig_source_f(sample_rate, analog.GR_SIN_WAVE, tone_freq, 0.1, 0.0) - self.connect(self.plgen, self) + self.connect(self.plgen, self) |