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Method of swarming aircraft positioning via network information based on mutual range information

A positioning method and networking technology, applied in the field of navigation and positioning, can solve the problems of sharp unmanned aerial vehicle groups, difficult positioning accuracy to meet the coordinated operation of aircraft groups, and difficult to implement, etc., to improve reliability and accuracy, improve the level of positioning accuracy, cost reduction effect

Inactive Publication Date: 2009-04-15
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is: in the case of GPS being interfered or GPS not being used in wartime, the positioning accuracy is difficult to meet the requirements of the cooperative operation of the aircraft group, and the above problems become more acute for the unmanned aerial vehicle group
However, in most cases, an aircraft is only equipped with 1-2 sets of inertial navigation, and the above ideas are difficult to implement

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  • Method of swarming aircraft positioning via network information based on mutual range information
  • Method of swarming aircraft positioning via network information based on mutual range information
  • Method of swarming aircraft positioning via network information based on mutual range information

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Embodiment Construction

[0013] The aircraft group network positioning method based on the mutual ranging information of the aircraft proposed by the present invention, that is, during the flight, each node in the aircraft group measures the distance and reports their own navigation information through the inter-aircraft data link, and filters the acquired data. To estimate and correct the position error and time asynchronous error of each node, the effect similar to the "weighted" average can be achieved.

[0014] The inter-machine communication and ranging functions of the present invention can be realized by the communication data link; in terms of hardware, a radio transceiver can be installed on the aircraft, and even the transceiver can be shared with the communication network to form a ranging communication system. Since the United States began to use data links in the 1960s, several tactical data links have been developed and equipped with troops, among which Link4, Link11 and Link16 are widely...

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Abstract

This invention relates to a method for localizing armada multinet based on the information of measuring distances mutually including: observer 1 is used in estimating error of each set of inertial navigation system, and the state quantity input by the observer is the error of the total inertial navigation system joining in the networking including a position error of the system and time asynchronous error between the inertial navigation system and a range system, and the quantity is the difference of distance between actual measurement and computation, in which, the actual measured distance is got by measuring distances among planes and the computation distance is got by computing position information data provided by the inertial navigation to get the optimum estimation to the input state volume from computation with a filter method based on a state equation and a measurement equation, observer 2 may be included here and the input state quantity of which is the error coefficient of the system, the measured volume is the optimum estimation to the input state quantity by computing the inertial navigation error estimated by observer 1 with a filter method based on the state equation and the measurement equation.

Description

technical field [0001] The invention relates to a method for correcting inertial navigation accumulating errors over time by using mutual ranging information between aircraft groups, and belongs to the technical field of navigation and positioning. Background technique [0002] The extensive use of information technology in the military field has brought about revolutionary changes in the way of fighting in the information age, and the form of warfare has changed from three-dimensional confrontation of large corps to system-to-system confrontation. Under such conditions, modern air combat faces the problems of vast combat space, rapidly changing situations, fierce confrontation maneuvers, complex electronic environment, and fleeting fighters. Aircraft group networking will become a basic working mode of air operations under the condition of system confrontation, so as to improve the overall combat effectiveness. [0003] At present, aircraft group networking and coordinated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01S5/02
Inventor 冯培德张京娟谢淑香
Owner BEIHANG UNIV
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