the azimuth error is one of the main error sources of dead reckoning. the method is very effective that make use of landmark to improve the accuracy of azimuth alignment.
at this point, the satellite is in its final configuration and it will reach its final attitude by correcting the azimuth error as well as the elevation error.
在这个时机点,卫星已经进入最后的设定并且会透过修正方位角错误和仰角错误来达到最后的姿态。
in comparison with the original method, there is no superposition of the variation of the azimuth error in the present method and the original design of the instrument is not needed to be changed.
这一方法不必对方位差的变化规律作任何假设,不需要改变现有的仪器设计方案。
a fast estimation method of the azimuth error angle is proposed for the initial alignment of ins, and the result illustrates the efficiency of the method.