Aircraft active navigation and positioning device and navigation and positioning method
A technology for navigation and positioning and aircraft, applied in the field of active navigation and positioning devices for aircraft, can solve problems such as low anti-interference performance, high complexity, and low concealment, and achieve large functional scalability, strong anti-electromagnetic interference, and low power consumption Effect
Active Publication Date: 2021-09-07
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
[0007] The purpose of the present invention is to solve the problems of high cost, high complexity, low concealment and low anti-interference performance faced by aircraft landing navigation such as unmanned aerial vehicles, and to provide an active navigation and positioning device for aircraft based on laser ranging communication and Navigation and positioning method, the device can achieve low cost, low complexity, high concealment, high anti-interference ability and high precision navigation and positioning of the aircraft through active laser scanning, passive response and reflectivity modulation
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[0055] The present invention will be further described below in conjunction with example and accompanying drawing, but should not limit protection scope of the present invention with this.
[0056] see first figure 1 , figure 1 It is a schematic diagram of the device structure of the aircraft active navigation and positioning technology based on laser ranging communication in the present invention. It can be seen from the figure that the aircraft active navigation and positioning device based on laser ranging communication in the present invention is divided into a laser ranging communication scanning device installed on the aircraft and reference transponders installed in the landing area:
[0057] The optical ranging communication scanning device includes a transmitting pulse encoder 1, a laser 2, a scanner 3, an echo detector 4, a shaper 5, a correlation rangefinder 6, an echo decoder 7 and a positioning navigator 13, The connection relationship of the above components ...
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An aircraft active navigation and positioning device and navigation positioning method based on laser ranging communication, the device includes a laser ranging communication scanning device installed on the aircraft and a navigation response device that arranges multiple reference positions on the airport runway or landing area. The feature of the present invention is that the aircraft is used as the laser active transmitter to emit coded laser light, and the navigation transponder provides reference coordinates to the aircraft in a passive response mode, and the passive transponder only provides navigation reference coordinates when needed and conforms to the identity information, with extremely low Power consumption and good concealment can be applied to aircraft landing sites with high concealment requirements, unattended, and no GPS signals.
Description
technical field [0001] The invention relates to laser active navigation and positioning, in particular to an aircraft active navigation and positioning device and a navigation and positioning method based on laser ranging communication. Background technique [0002] The autonomous landing of the aircraft is mainly through two means, one is autonomous navigation through GNSS, but because the real-time accuracy and reliability of GNSS are not high, it is only used as a reference. The other is to actively guide the ground, and actively transmit radio signals and runway marking lights to help the pilot determine the relative position of the aircraft and the runway, so as to achieve a safe landing of the aircraft. For example, with the rapid development of application fields such as drones, unmanned autonomous landing will become an urgent need, and the complex ground active guidance technology used by current airports can no longer meet the needs of large-scale unmanned aerial v...
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IPC IPC(8): G01S17/10
CPCG01S17/10
Inventor 胡善江贺岩陈卫标
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI