Method for realizing in-plane coordinate positioning by utilizing laser radar
A laser radar, coordinate positioning technology, applied in the direction of using re-radiation, electromagnetic wave re-radiation, measuring devices, etc., can solve the problem of unable to meet the real-time, precise positioning requirements, restrict the accuracy of measurement results, etc., to achieve efficient, fast, high-precision positioning, The effect of reducing costs and improving operational efficiency
Active Publication Date: 2019-05-07
BEIJING CEWEI TECH
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Problems solved by technology
None of the above three positioning methods can meet the real-time and precise positioning requirements of the radar scattering measurement system for coordinate information, which seriously restricts the further improvement of the accuracy of the measurement results. A new, high-precision real-time positioning technology is urgently needed
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[0026] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0027] figure 1 It shows a flow chart of a method for realizing in-plane coord...
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The invention discloses a method for realizing in-plane coordinate positioning by utilizing laser radar, which comprises confirming the number, the position and the layout of standby mark positions ofa target to be measured according to the measurement task requirement and the characteristic of the target to be measured before the measurement starts; arranging a corresponding omnidirectional laser target on the projection point of each mark position on the ground plane; establishing an omnidirectional laser target coordinate information base; performing 2D scanning with a range of 360 degreeon a mounting plane by the laser radar to obtain all the omnidirectional laser target information; screening out laser reflection signals from the signals reflected back from the omnidirectional lasertarget, and further confirming the reflected signals that belong to a same omnidirectional laser target; and obtaining a center point and a radius parameter of the omnidirectional laser target through a curve fitting algorithm, and further obtaining the precise coordinates of the laser radar relative to the omnidirectional laser target and the scanning direction of the laser radar. According to the method for realizing in-plane coordinate positioning by utilizing the laser radar, in the practice of measurement, the fast and high-precision positioning of in-plane coordinates can be achieved more efficiently by using the method; the operation efficiency is improved, and the measurement test cost is reduced.
Description
technical field [0001] The present application relates to the technical field of laser radar positioning, and more specifically, relates to a method for realizing in-plane coordinate positioning by using laser radar. Background technique [0002] Ideally, for any point in the plane, the three-point positioning method can be used for coordinate positioning, that is, it only needs to know the position coordinates of three points in the plane (the three points are not on a straight line), and measure the point to the point where the coordinates have been measured. Knowing the distance between the three points, you can calculate the exact coordinates of the point. [0003] In the practice of measuring the radar wave scattering characteristics of stealth equipment, in order to obtain the overall scattering characteristics of stealth equipment, the radar scattering measurement system is constantly moving around the stealth equipment. During the measurement process, in order to ob...
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Inventor 张澎彭刚苗鑫田进军
Owner BEIJING CEWEI TECH