diff options
Diffstat (limited to 'gr-analog/python/analog/nbfm_rx.py')
| -rw-r--r-- | gr-analog/python/analog/nbfm_rx.py | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/gr-analog/python/analog/nbfm_rx.py b/gr-analog/python/analog/nbfm_rx.py index 3e8dcd5287..f849012178 100644 --- a/gr-analog/python/analog/nbfm_rx.py +++ b/gr-analog/python/analog/nbfm_rx.py @@ -34,28 +34,27 @@ from .fm_emph import fm_deemph class nbfm_rx(gr.hier_block2): + """ + Narrow Band FM Receiver. + + Takes a single complex baseband input stream and produces a single + float output stream of audio sample in the range [-1, +1]. + + Args: + audio_rate: sample rate of audio stream, >= 16k (integer) + quad_rate: sample rate of output stream (integer) + tau: preemphasis time constant (default 75e-6) (float) + max_dev: maximum deviation in Hz (default 5e3) (float) + + quad_rate must be an integer multiple of audio_rate. + + Exported sub-blocks (attributes): + squelch + quad_demod + deemph + audio_filter + """ def __init__(self, audio_rate, quad_rate, tau=75e-6, max_dev=5e3): - """ - Narrow Band FM Receiver. - - Takes a single complex baseband input stream and produces a single - float output stream of audio sample in the range [-1, +1]. - - Args: - audio_rate: sample rate of audio stream, >= 16k (integer) - quad_rate: sample rate of output stream (integer) - tau: preemphasis time constant (default 75e-6) (float) - max_dev: maximum deviation in Hz (default 5e3) (float) - - quad_rate must be an integer multiple of audio_rate. - - Exported sub-blocks (attributes): - squelch - quad_demod - deemph - audio_filter - """ - gr.hier_block2.__init__(self, "nbfm_rx", gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature gr.io_signature(1, 1, gr.sizeof_float)) # Output signature |