stream_selectors.py 文件源码

def get_descriptor(self, source_instr_settings, channel_settings):
        # Create a channel
        channel = X6Channel(channel_settings)

        descrip = DataStreamDescriptor()
        # If it's an integrated stream, then the time axis has already been eliminated.
        # Otherswise, add the time axis.
        if channel_settings['stream_type'] == 'Raw':
            samp_time = 4.0e-9
            descrip.add_axis(DataAxis("time", samp_time*np.arange(source_instr_settings['record_length']//4)))
            descrip.dtype = np.float64
        elif channel_settings['stream_type'] == 'Demodulated':
            samp_time = 32.0e-9
            descrip.add_axis(DataAxis("time", samp_time*np.arange(source_instr_settings['record_length']//32)))
            descrip.dtype = np.complex128
        else: # Integrated
            descrip.dtype = np.complex128

        return channel, descrip