netsse.analys.enc_spec.resp_spec_1d
===================================

.. py:function:: netsse.analys.enc_spec.resp_spec_1d(f0, ws, TRF1, TRF2, fe, U, beta)

   Computes a response cross-spectrum in both the absolute and encountered
   frequency domains, in a case of long-crested seas.

   :param f0: Vector of absolute frequencies [Hz].
   :type f0: array_like of shape (Nf0,1)
   :param ws: 1-D wave spectrum, as a function of (absolute) wave frequency ``f0`` [Hz].
   :type ws: array_like of shape (Nf0,1) in 1-D
   :param TRF1: Transfer functions of two response components, as a function of frequency
                ``f0`` [Hz].
   :type TRF1: array_like of shape (Nf0,1)
   :param TRF2: Transfer functions of two response components, as a function of frequency
                ``f0`` [Hz].
   :type TRF2: array_like of shape (Nf0,1)
   :param fe: Vector of encounter frequencies [Hz].
   :type fe: array_like of shape (Nfe,1)
   :param U: Ship speed [m/s].
   :type U: float
   :param beta: Ship heading, relative to the wave direction [deg].
   :type beta: float

   :returns: * **RspecAbs** (*array_like of shape (Nf0,1)*) -- Response spectrum, as a function of absolute wave frequency ``f0`` [Hz].
             * **RspecEnc** (*array_like of shape (Nfe,1)*) -- Response spectrum, as a function of encountered frequency ``fe`` [Hz].

   .. seealso::

      :obj:`resp_spec_2d`
          Computes a response cross-spectrum in the encounter-frequency domain, in case of short-crested sea.

   .. rubric:: Example

   >>> RspecAbs, RspecEnc = resp_spec_1d(f0,ws,TRF1,TRF2,fe,U,beta)