def __init__(self, k=4.0, tchannel=1, voltage=0): gr.hier_block2.__init__( self, "channel", gr.io_signature(1, 1, gr.sizeof_float * 1), gr.io_signature(1, 1, gr.sizeof_float * 1), ) ################################################## # Parameters ################################################## self.k = k self.tchannel = tchannel self.voltage = voltage ################################################## # Blocks ################################################## self.channels_fading_model_0_0 = channels.fading_model( 8, 5 / 32000, False, 4.0, 0) self.channels_fading_model_0 = channels.fading_model( 8, 5 / 32000, True, k, 0) self.blocks_float_to_complex_0_0 = blocks.float_to_complex(1) self.blocks_float_to_complex_0 = blocks.float_to_complex(1) self.blocks_complex_to_float_0_0_0 = blocks.complex_to_float(1) self.blocks_complex_to_float_0 = blocks.complex_to_float(1) self.blocks_add_xx_0 = blocks.add_vff(1) self.analog_noise_source_x_0 = analog.noise_source_f( analog.GR_GAUSSIAN, voltage, 0) self.Multiplexer_mux_0 = Multiplexer.mux(tchannel) ################################################## # Connections ################################################## self.connect((self.Multiplexer_mux_0, 0), (self, 0)) self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx_0, 0)) self.connect((self.blocks_add_xx_0, 0), (self.Multiplexer_mux_0, 0)) self.connect((self.blocks_complex_to_float_0, 0), (self.Multiplexer_mux_0, 2)) self.connect((self.blocks_complex_to_float_0_0_0, 0), (self.Multiplexer_mux_0, 1)) self.connect((self.blocks_float_to_complex_0, 0), (self.channels_fading_model_0_0, 0)) self.connect((self.blocks_float_to_complex_0_0, 0), (self.channels_fading_model_0, 0)) self.connect((self.channels_fading_model_0, 0), (self.blocks_complex_to_float_0_0_0, 0)) self.connect((self.channels_fading_model_0_0, 0), (self.blocks_complex_to_float_0, 0)) self.connect((self, 0), (self.blocks_add_xx_0, 1)) self.connect((self, 0), (self.blocks_float_to_complex_0, 0)) self.connect((self, 0), (self.blocks_float_to_complex_0_0, 0))