Aircraft laser receiving equipment

Abstract

The invention relates to aircraft laser receiving equipment. The equipment includes a terminal body, an upper cover and a lower cover. The upper cover and the lower cover are respectively disposed atan upper end and a lower end of the terminal body and form a closed cavity. Laser through holes are disposed on the upper cover. A detection circuit, a preamplifier circuit, a signal processing and peak value hold circuit, an analog-to-digital conversion circuit, a main control circuit and a power supply circuit are disposed in the closed cavity. The detection circuit, the preamplifier circuit andthe signal processing and peak value hold circuit are sequentially and electrically connected. The signal processing and peak value hold circuit are electrically connected with the analog-to-digitalconversion circuit and the main control circuit respectively. The analog-to-digital conversion circuit is electrically connected with the main control circuit. According to the equipment, the laser through holes can be opened or closed, irreparable damage caused by the sand stone, rain and snow weathers on an inside in long-term idling is prevented, lasers can be received and detected in real timethrough the detection circuit, real-time laser capturing and detection are facilitated, long-distance measurement and determination are effectively realized, and detection accuracy is higher.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to an aircraft laser receiving device. Background technique [0002] Satellite surveying and mapping technology is changing with each passing day, and the resolution of satellite images has broken through the sub-meter level. However, surveying and mapping products used in resource investigation, environmental monitoring, polar surveying and mapping, disaster emergency response and other industries are limited by elevation accuracy. In order to make up for the lack of elevation accuracy of domestic three-dimensional surveying and mapping products, some experts and scholars have proposed a new idea of ​​combining a spaceborne laser altimeter and a three-dimensional surveying camera on the same platform for composite surveying and mapping to improve the high precision of satellite uncontrolled surveying. The laser receiving terminals are all open settings, which are easy to be damaged ...

AI Technical Summary

Problems solved by technology

[0002] Satellite surveying and mapping technology is changing with each passing day, and the resolution of satellite images has broken through the sub-meter level. However, surveying and mapping products used in resource investigation, environmental monitoring, polar surveying and mapping, disaster emergency response and other industries are limited by elevation accuracy.

In order to make up for the lack of elevation accuracy of domestic three-dimensional surveying and mapping products, some experts and scholars have proposed a new idea of ​​combining a spaceborne laser altimeter and a three-dimensional surveying camera on the same platform for composite surveying and mapping to improve the high precision of satellite uncontrolled surveying. The laser receiving terminals are all open settings, which are easy to be damaged in the outdoor environment, and the maintenance cost is relatively high, especially in harsh environments, such as sand, stone, rain and snow, which will cause irreparable damage to the ground laser receiving terminal

In addition, when carrying out laser height measurement outdoors, due to the characteristics of small laser energy emitted by the laser, short pulse time, and long transmission distance, the current receiving terminal has poor reception stability and signal detection accuracy, resulting in low equipment reliability. Difference

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