Airborne dual-wavelength area array imaging laser radar structure
A dual-wavelength laser and lidar technology, used in the re-radiation of electromagnetic waves, radio wave measurement systems, and utilization of re-radiation, etc., can solve the problems of great influence on detection efficiency and image distortion, and achieve overall structural layout and volume optimization, Compact and stable structure, the effect of improving efficiency
Pending Publication Date: 2020-12-08
HARBIN INST OF TECH
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[0003] Existing ground surveying and mapping airborne lidar usually adopts single-point scanning imaging. The scanning field of view and resolution have a great influence on the detection efficiency, and during the scanning process, there are image distortions caused by non-aircraft motion.
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[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0036] like Figure 1-Figure 10 As shown, an airborne dual-wavelength area array imaging laser radar structure includes a pod, a dual-wavelength laser detection system, a servo servo system, an image processing board 11, a servo servo system control board 13, a motor drive board 8 and an upper machine, the dual-wavelength laser detection system, servo servo system, image processing board 11, servo servo system control board 13, and motor drive board 8 are all arranged in the pod; the servo servo system includes a servo frame , motor, gyroscope 6, angle measuring grating and motor limiter, described motor, gyroscope 6, angle measuring grating and motor limiter motor are all installed on ...
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The invention provides an airborne dual-wavelength area array imaging laser radar structure which comprises a pod, a dual-wavelength laser detection system, a follow-up servo system, an image processing board, a follow-up servo system control board, a motor driving board and an upper computer. The dual-wavelength laser detection system, the follow-up servo system, the image processing board, the follow-up servo system control board and the motor driving board are all arranged in the pod; the follow-up servo system comprises a servo frame, a motor, a gyroscope, an angle measuring grating and amotor limiting stopper, and the motor, the gyroscope, the angle measuring grating and the motor limiting stopper are installed on the servo frame. According to the invention, the instantaneous field of view can be improved, and the detection field of view can be further improved by depending on a servo system. Effective miniaturized design is carried out in structural space, so that the device canbe mounted on the belly of a helicopter for ground detection.
Description
technical field [0001] The invention belongs to the technical field of laser radar, and in particular relates to an airborne dual-wavelength area array imaging laser radar structure. Background technique [0002] Laser has received more and more attention in the field of earth observation, and the most representative application is high-precision three-dimensional mapping, which is incomparable to any detection device. In addition, the intensity information obtained by lidar is used for vegetation coverage statistics, plant species statistics, vegetation affected by insect pests, water quality monitoring, Antarctic ice cover coverage, target classification and recognition and other applications. Lidar often uses a single band for detection. In order to ensure the effective application of intensity information, the accuracy of intensity information correction is very high, which also requires high intensity correction technology and target recognition algorithms. In recent y...
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IPC IPC(8): G01S17/89G01S7/481
CPCG01S17/89G01S7/4817G01S7/481
Inventor 孙剑峰周鑫刘迪王骐
Owner HARBIN INST OF TECH