PROBLEM TO BE SOLVED: To provide a flying body-purposed navigation unit that can conduct more stable autonomous positioning, to provide a flying body that uses the navigation device, and to provide a flying body safety control system.SOLUTION: A flying body-purposed navigation unit is configured to: obtain a relative speed with respect to a satellite on the basis of a Doppler shift in a radio wave from the satellite until a prescribed timing after a flying body is launched from a ground; derive a position and speed of the flying body; after the prescribed time, obtain a relative distance with respect to the satellite to thereby derive a position of the flying body; and further, in a state where the radio wave of the satellite cannot be received, complement the position and speed of the flying body derived by a radio wave navigation computation by an inertial measurement unit with respect to the position and speed thereof until the complementation.SELECTED DRAWING: Figure 3
【課題】より安定した自律測位を行うことが可能な飛行体用航法装置、並びにこれを利用した飛行体、および飛行体安全管制システムを提供すること。【解決手段】飛行体が地上から飛び立った後、所定タイミングまでは、衛星からの電波におけるドップラーシフトに基づいて衛星との相対速度を求めることで、飛行体の位置および速度を導出し、所定タイミング以降は、衛星との相対距離を求めることで飛行体の位置を導出することを行う。また、衛星の電波が受信できない状況において、その直前までの電波航法演算により導出された飛行体の位置および速度に対して、慣性計測装置により位置および速度を補完する。【選択図】図3
FLYING BODY-PURPOSED NAVIGATION UNIT, FLYING BODY, AND FLYING BODY SAFETY CONTROL SYSTEM
飛行体用航法装置、飛行体、および飛行体安全管制システム
2018-07-12
Patent
Electronic Resource
Japanese
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