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Relative navigation system and method for air refueling rendezvous section

A relative navigation and aerial refueling technology, applied in navigation, navigation through speed/acceleration measurement, surveying and navigation, etc., to achieve the effect of satisfying reliability and fault tolerance

Inactive Publication Date: 2017-10-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] There are some technical problems in the existing technical means: how to choose a reasonable sensor to meet the requirements of the aerial refueling rendezvous; how to design an algorithm to provide real-time, high-precision relative navigation information between the tanker and the receiver to ensure the convergence of the output How to meet the reliability and fault tolerance requirements of the relative navigation system

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  • Relative navigation system and method for air refueling rendezvous section
  • Relative navigation system and method for air refueling rendezvous section
  • Relative navigation system and method for air refueling rendezvous section

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] The present invention aims at the rendezvous section of aerial refueling, adopts the combination of SINS, GPS and IRST for the navigation system, and adopts a hybrid multi-level fusion structure model on the system framework, and can obtain high-precision information between the refueling machine and the refueling machine in real time Relative position, velocity, attitude information. When the data link is interrupted, IRST can work independently to meet the requirements of system reliability and fault tolerance.

[0034] Such as figure 1 Shown is a structural block diagram of the relative navigation system according to the present invention, including a refueling machine and a refueling machine; wherein, the refueling machine includes SINS, GPS and a data link communication system; the refueling machine includes SINS,...

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Abstract

The invention discloses a relative navigation system and method for an air refueling rendezvous section. The system adopts a manner of combining a strap-down inertial navigation system (SINS), a global positioning system (GPS) and an infrared searching and tracking system (IRST); and a refueling aircraft communicates with a refueled aircraft by a data link. A hybrid multi-stage fusion structure model is adopted to obtain information of high-precision relative position, velocity and attitude between the refueling aircraft and the refueled aircraft in real time and meet task requirements of the air refueling rendezvous section; and besides, the IRST can work independently to weaken the dependence of the relative navigation system on the data link, so that the system is highly reliable and fault-tolerant.

Description

technical field [0001] The invention belongs to the field of relative navigation and integrated navigation, and in particular relates to a relative navigation system and method used for aerial refueling rendezvous. Background technique [0002] Aerial refueling is the transfer of fuel from one aircraft to another aircraft or aircraft during flight. With this technology, it means that the aircraft can be refueled without landing, which greatly increases the range and endurance of the aircraft, and provides the possibility for better mission execution. [0003] Solving the relative navigation information between the tanker and the receiver is the primary problem of aerial refueling. The relative navigation information includes three aspects: relative position, speed and attitude. At present, there are few researches on the relative navigation algorithm for the rendezvous segment of aerial refueling at home and abroad. There are some relative navigation algorithms for formati...

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Application Information

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IPC IPC(8): G01C21/16G01S19/47
CPCG01C21/165G01S19/47
Inventor 朱云峰孙永荣赵伟吴雷
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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