基于天线阵元三维空间布局的干涉仪测向技术

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Abstract： The direction finding theoretical models interferometer systems are based on interferometer arrays two-dimensional distribution.Direction finding method based on three-dimensional distribution interferometer arrays is proposed which resolves the issue of degressive DF accuracy and probability of obtaining correct DOA.Firstly，ambiguity DOA list is calculated according to the interferometer baseline length and the frequency，and the initial value of direction vector is calculated. Then least square iteration algorithm is used to improve DF accuracy.The simulation experimental results demonstrate that the method is effective. The stationary emitter location accuracy and probability of obtaining correct DOA is improved.

Keywords：interferometer;3-D interferometer array;DOA method

0 引言

对非合作辐射源的无源定位技术在电子侦察、预警探测等领域具有重要应用价值。（剩余5309字）