Initial alignment is one of the key technology of inertial navigation system . it directly influence the navigation performance of navigation system . because some random factors exist in the system , there are some difference between the precision of initial alignment and alignment time 初始對準是慣性導航系統(tǒng)的關(guān)鍵技術(shù)之一,它直接影響慣導系統(tǒng)的導航性能,由于系統(tǒng)中存在有各種隨機因素,初始對準的精度和對準時間之間存在著矛盾,對準精度越高所需時間也越長。