解决一追二问题的方法共讨论了三种：初始角的平分线航向法、瞬时角的平分线航向法、中点轨迹法。

Three methods are discussed to solve the one pursue two problem, they are course method of the initial angular bisector, course method of the instantaneous angular bisector and mid-point path method.

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这种方案的特点起，从不同的途径来进行初始对准，系统本皇可以输出航向、纬度和水平信息，同时，航向和纬度信息都不存在随时间而积累的误差。

The system is characterized by its initial alignment through a different approach. It is capable of sending out information on course, latitude and horizon on its own.

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