diff options
Diffstat (limited to 'gr-analog/python/analog/wfm_rcv.py')
| -rw-r--r-- | gr-analog/python/analog/wfm_rcv.py | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/gr-analog/python/analog/wfm_rcv.py b/gr-analog/python/analog/wfm_rcv.py index d35d219275..c1f6dea339 100644 --- a/gr-analog/python/analog/wfm_rcv.py +++ b/gr-analog/python/analog/wfm_rcv.py @@ -19,14 +19,17 @@ # Boston, MA 02110-1301, USA. # -from gnuradio import gr, filter -from fm_emph import fm_deemph +from __future__ import absolute_import +from __future__ import division +from __future__ import unicode_literals + import math -try: - from gnuradio import analog -except ImportError: - import analog_swig as analog +from gnuradio import gr, filter + +from . import analog_swig as analog +from .fm_emph import fm_deemph + class wfm_rcv(gr.hier_block2): def __init__ (self, quad_rate, audio_decimation): @@ -40,14 +43,14 @@ class wfm_rcv(gr.hier_block2): quad_rate: input sample rate of complex baseband input. (float) audio_decimation: how much to decimate quad_rate to get to audio. (integer) """ - gr.hier_block2.__init__(self, "wfm_rcv", - gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature - gr.io_signature(1, 1, gr.sizeof_float)) # Output signature + gr.hier_block2.__init__(self, "wfm_rcv", + gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature + gr.io_signature(1, 1, gr.sizeof_float)) # Output signature volume = 20. max_dev = 75e3 - fm_demod_gain = quad_rate/(2*math.pi*max_dev) + fm_demod_gain = quad_rate / (2*math.pi*max_dev) audio_rate = quad_rate / audio_decimation @@ -64,7 +67,7 @@ class wfm_rcv(gr.hier_block2): width_of_transition_band = audio_rate / 32 audio_coeffs = filter.firdes.low_pass(1.0, # gain quad_rate, # sampling rate - audio_rate/2 - width_of_transition_band, + audio_rate / 2 - width_of_transition_band, width_of_transition_band, filter.firdes.WIN_HAMMING) # input: float; output: float |