高斯-克吕格投影的远程测向方位角计算方法

Azimuth Computation Method Study on Remote Direction Finding Based on Gauss-Krueger Projection

唯一参考点单目标计算方位角的经典方法计算唯一参考点多目标之间的方位角时,方位角方向线由于地球曲率影响通常不在同一平面,在远程测向中尤为明显。为此提出了一种基于高斯-克吕格投影的远程测向方位角计算方法,利用高斯-克吕格投影及三度分带法,将地球近似椭球体转化为二维平面,再进行远程方位角计算。该算法减小了地球曲率影响,提高了计算精度。通过具有代表性的几组数据的验证说明本算法的有效性。可用在无线电波远程测向定位、航海航空计算等领域。

At azimuth computation between multiple targets with one reference point by the classic method applied in the azimuth computation between one reference point and single target, the azimuth direction vectors are non-coplanar influenced by earth curvature,which is especially obvious in remote direction finding. In this paper it is put forward that azimuth computation method on remote direction finding based on Gauss-Krueger projection,which is that the earth approximate ellipsoid is transformed into two-dimensional plane to compute remote azimuth with. Gauss-Krueger projection and 3~ zone dividing. This method has less earth curvature effect and higher accuracy than the classic method. In this paper azimuth computation with several groups of representative datum verifies the effective of the method in remote direction finding, and the method can be used in radio remote goniometric location, navigation and aviation computation.