Combined navigation method applicable to unmanned aerial vehicle in glide landing stage
An integrated navigation and unmanned aerial vehicle technology, applied in the field of integrated navigation, can solve the problems such as the receiver is not easy to capture and track the satellite carrier signal, the inertial navigation system is not suitable for long-distance navigation, and the accumulation of positioning errors, etc. Inexpensive, reliability-enhancing effects
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[0016] Refer to figure 1 . Introduce the specific implementation of the differential GPS / INS integrated navigation system in conjunction with a certain type of UAV. A set of airborne differential GPS system, a set of fully autonomous inertial navigation system and a flight control computer are installed on a certain type of UAV. These three parts form a closed loop, and one is set on the airport runway where the UAV conducts flight and taxi tests. Sets of differential GPS ground stations together form a differential GPS / INS integrated navigation system. The differential GPS system is composed of two parts: the GPS airborne differential station installed on the UAV and the differential GPS ground station set at the reference point of the airport runway. The accuracy of the differential GPS system can reach 1m. The realization steps of the invention include:
[0017] (1) Select a reference data point on the airport runway where the UAV is conducting take-off or taxiing tests, an...
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