The positioning method of the airport navigation aid light intensity detection vehicle based on the linear array ccd

Abstract

The invention discloses a method for positioning a light intensity detection vehicle of airport navigation lights based on a linear array Charge Coupled Device (CCD). A linear array CCD scanning technology is used to correct Doppler range radar accumulative errors of the detection vehicle and the errors generated when lines in an illuminance sensing belt and a direction of navigation light are not superposed. Through the method, the linear array CCD collects the light intensity of light beams above the navigation lights. Because the linear array CCD has the advantages of large sampling point density and high sampling rate, the center positions of the navigation lights can be accurately positioned; the problems that the positioning accuracy of the detection vehicle is low in a traditional discrete sensor mode, leak detection and misjudgment to the detection of the navigation lights easily happen, and the transverse deviation of the detection vehicle can not be effectively corrected are solved; and the stability and the integrated level of the positioning of the detection vehicle of the navigation lights are effectively improved.

Description

technical field [0001] The invention relates to the technical field of civil aviation, in particular to a positioning method for an airport navigation light intensity detection vehicle based on a linear array CCD. Background technique [0002] The navigation light on the airport runway is an important facility to ensure flight safety during the takeoff and landing stages of the aircraft. It can be used as an important guide sign for the airport runway and taxiway at night and in poor visibility weather conditions, marking takeoff and landing for pilots. and sliding routes. The working condition and reliability of navigation lights are closely related to the safety of aircraft take-off and landing, and its performance will have problems with the influence of the surrounding environment and its own life, which will affect the safe operation of the airport. Light intensity detection is very important. [0003] The light intensity detection vehicle for navigational lights is a...

AI Technical Summary

Problems solved by technology

The traditional positioning system uses discretely distributed light intensity detection sensors, and 11 positioning probes are evenly distributed in the concave part at the rear and lower part of the sensor belt, and the count of Doppler ranging pulses is determined by determining the peak value of the horizontal and vertical light intensity The deviation between the reset point and the midline of the light sensing belt and the direction of the navigation light may lead to the missed detection of the navigation light due to the existence of the gap between the probes, and due to the differences in the circuit parameters of each sensor, there may be a peak value of the light intensity. misjudgment, thereby reducing the accuracy of light intensity detection of navigation aids

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