Electric axis dynamic alignment method of shipborne phased array radar

  Objectives  Phased array radar is difficult to ensure the static alignment of electric axis, therefore a research into dynamic alignment method is conducted.

  Methods  With the real-time measurement of the ship's attitude and position information and the signal source position information, the real-time target true value and detection value of the phased array radar are obtained through attitude and position correction algorithms with a unified time reference. Then, the zero error of the electric axis of the phased array radar is obtained, thus achieving dynamic alignment.

  Results  The simulation results show that the accuracy of the alignment method can reach about 0.5'.

  Conclusions  This method meets the alignment requirements of phased array radar, reduces the requirement and saves the test cost, and has strong flexibility and mobility.