lti.py 文件源码

def get_transfer_function(self, in_name, out_name, in_type='v', atol=0.0):
        # type: (str, str, str, float) -> TransferFunctionContinuous
        """Compute the transfer function between the two given nodes.

        Parameters
        ----------
        in_name : str
            the input voltage/current node name.
        out_name : Union[str, List[str]]
            the output voltage node name.
        in_type : str
            set to 'v' for input voltage sources.  Otherwise, current sources.
        atol : float
            absolute tolerance for checking zeros in the numerator.  Used to filter out scipy warnings.

        Returns
        -------
        system : TransferFunctionContinuous
            the scipy transfer function object.  See scipy.signal package on how to use this object.
        """
        num, den = self.get_num_den(in_name, out_name, in_type=in_type, atol=atol)
        return TransferFunctionContinuous(num, den)