diff options
Diffstat (limited to 'gr-digital/python/gmsk.py')
| -rw-r--r-- | gr-digital/python/gmsk.py | 72 |
1 files changed, 30 insertions, 42 deletions
diff --git a/gr-digital/python/gmsk.py b/gr-digital/python/gmsk.py index 8f8c659010..e7853dd0af 100644 --- a/gr-digital/python/gmsk.py +++ b/gr-digital/python/gmsk.py @@ -59,28 +59,25 @@ _def_omega_relative_limit = 0.005 # ///////////////////////////////////////////////////////////////////////////// class gmsk_mod(gr.hier_block2): + """ + Hierarchical block for Gaussian Minimum Shift Key (GMSK) + modulation. + + The input is a byte stream (unsigned char) and the + output is the complex modulated signal at baseband. + + Args: + samples_per_symbol: samples per baud >= 2 (integer) + bt: Gaussian filter bandwidth * symbol time (float) + verbose: Print information about modulator? (boolean) + debug: Print modulation data to files? (boolean) + """ def __init__(self, samples_per_symbol=_def_samples_per_symbol, bt=_def_bt, verbose=_def_verbose, log=_def_log): - """ - Hierarchical block for Gaussian Minimum Shift Key (GMSK) - modulation. - - The input is a byte stream (unsigned char) and the - output is the complex modulated signal at baseband. - - @param samples_per_symbol: samples per baud >= 2 - @type samples_per_symbol: integer - @param bt: Gaussian filter bandwidth * symbol time - @type bt: float - @param verbose: Print information about modulator? - @type verbose: bool - @param debug: Print modualtion data to files? - @type debug: bool - """ gr.hier_block2.__init__(self, "gmsk_mod", gr.io_signature(1, 1, gr.sizeof_char), # Input signature @@ -174,7 +171,23 @@ class gmsk_mod(gr.hier_block2): # ///////////////////////////////////////////////////////////////////////////// class gmsk_demod(gr.hier_block2): - + """ + Hierarchical block for Gaussian Minimum Shift Key (GMSK) + demodulation. + + The input is the complex modulated signal at baseband. + The output is a stream of bits packed 1 bit per byte (the LSB) + + Args: + samples_per_symbol: samples per baud (integer) + verbose: Print information about modulator? (boolean) + log: Print modualtion data to files? (boolean) + gain_mu: controls rate of mu adjustment (float) + mu: fractional delay [0.0, 1.0] (float) + omega_relative_limit: sets max variation in omega (float) + freq_error: bit rate error as a fraction (float) + """ + def __init__(self, samples_per_symbol=_def_samples_per_symbol, gain_mu=_def_gain_mu, @@ -183,31 +196,6 @@ class gmsk_demod(gr.hier_block2): freq_error=_def_freq_error, verbose=_def_verbose, log=_def_log): - """ - Hierarchical block for Gaussian Minimum Shift Key (GMSK) - demodulation. - - The input is the complex modulated signal at baseband. - The output is a stream of bits packed 1 bit per byte (the LSB) - - @param samples_per_symbol: samples per baud - @type samples_per_symbol: integer - @param verbose: Print information about modulator? - @type verbose: bool - @param log: Print modualtion data to files? - @type log: bool - - Clock recovery parameters. These all have reasonble defaults. - - @param gain_mu: controls rate of mu adjustment - @type gain_mu: float - @param mu: fractional delay [0.0, 1.0] - @type mu: float - @param omega_relative_limit: sets max variation in omega - @type omega_relative_limit: float, typically 0.000200 (200 ppm) - @param freq_error: bit rate error as a fraction - @param float - """ gr.hier_block2.__init__(self, "gmsk_demod", gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature |