Device and method for detecting positioning precision of high-precision airborne laser radar system
An airborne laser radar and positioning accuracy technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of judging the accuracy of feature points and other problems, and achieve the effect of small measurement error, simple operation, and convenient field use
Inactive Publication Date: 2013-06-26
四川省科学城久利科技实业有限责任公司 +2
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The latter method also has errors in the accuracy of judging feature points due to the size of the feature and whether it is judged whether the surface or line is regular, the density of the laser point cloud, and the error between the laser foot point and the reflection point. The density of the point cloud or the task error when looking for feature points in the field is about 10cm
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[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0028] Such as figure 1 , figure 2 As shown, a positioning accuracy detection device for a high-precision airborne laser radar system includes a GPS receiver support frame, a GPS receiver, a detection rod side support frame, a first laser foot point detection rod, and a second laser foot point detection rod And the central support frame of the detection rod, the GPS receiver is fixed on the GPS receiver support frame, the GPS receiver level adjustment mechanism is set on the GPS receiver support frame, and the detection rod side support frame is 4, which can also be increased or decreased according to the environment. 4 detection rod side support frames support th...
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Abstract
The invention discloses a device and a method for detecting positioning precision of a high-precision airborne laser radar system. The device comprises a GPS (global position system) receiver support, a GPS receiver, a plurality of side detecting-bar supports, a first laser foot point detecting bar, a second laser foot point detecting bar and a center detecting-bar support. The GPS receiver is fixedly mounted on the GPS receiver support which is provided with a GPS receiver level adjustment mechanism. The side detecting-bar supports support the first laser foot point detecting bar and the second laser foot point detecting bar on the same horizontal plane. One end of the first laser foot point detecting bar and one end of the second laser foot point detecting bar are intersected on the center detecting-bar support, and the included angle between the first laser foot point detecting bar and the second laser foot point detecting bar is equal to or larger than 90 degrees. Accordingly, the device has the advantages of operational simplicity and low detection error, and is convenient to use in field.
Description
technical field [0001] The invention relates to the field of laser radar positioning, in particular to a positioning accuracy detection device and detection method of a high-precision airborne laser radar system. Background technique [0002] At present, the LiDAR system is an active system that integrates laser ranging, global positioning system, inertial navigation system technology and high-resolution digital imaging technology to quickly obtain three-dimensional high spatial resolution of ground and ground targets. observation system. In the past ten years, airborne LiDAR technology has been widely accepted in developed countries in the world as a method of accurately and quickly obtaining 3D surface information, and has broad development prospects in many fields such as terrain monitoring, environmental monitoring, and 3D test modeling. Application requirements (Ackeman F, et al, Airborne laser scanning - present status and future expectation. ISPRS JPRS, 1999(54):64-6...
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Inventor 韩晓言胡灿明自强宋梁周毅
Owner 四川省科学城久利科技实业有限责任公司