Multi - redundancy and multi - sensor self - determination ( passive ) fault - tolerance technologies are emphases in long - duration very high altitude uav navigation system research 網(wǎng)絡(luò)化多余度、多傳感器自主(無(wú)源)容錯(cuò)導(dǎo)航技術(shù)是長(zhǎng)航時(shí)無(wú)人機(jī)導(dǎo)航技術(shù)研究的重點(diǎn)。