首页|基于FPGA的自适应激光遥感地震波探测光学接收天线设计

基于FPGA的自适应激光遥感地震波探测光学接收天线设计

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激光遥感探测技术具有信息传输速度快、高精度和远距离探测等优点,可以很好地弥补地震勘探在地形复杂区域中存在的施工难度大、地震数据采集慢等缺点。在前期研究中利用波前传感器具有的高灵敏度、高探测效率和离轴探测等特点,将其用于地震波激光遥感探测之中,搭建激光遥感探测系统,探讨了地面振幅与波前传感器测量光斑的关系。为将该探测系统搭载到无人机上,实现由地面静态探测到在空中动态探测的转变,设计一种基于FPGA实现的自适应光学天线,旨在优化激光遥感探测系统对回波信号的接收效果。该自适应光学天线通过负反馈调节机制来实现自适应追踪和变焦,并根据接收到的信号质量进行实时调整。
Optical receiver antenna design for seismic wave laser remote sensing detection
Laser remote sensing detection technology has the advantages of fast information transmission speed,high precision and long-distance detection,which can well make up for the shortcomings of seismic exploration in are-as with complicated terrain,such as difficult construction and slow seismic data acquisition.In the previous study,the wavefront sensor,with its high sensitivity,high detection efficiency and off-axis detection,was used in the laser re-mote sensing detection of seismic waves,and a laser remote sensing detection system was constructed to explore the re-lationship between the ground amplitude and the spot measured by the wavefront sensor.In order to carry the detection system to the UAV and achieve the transformation from static detection on the ground to dynamic detection in the air,this paper designs an adaptive optical antenna based on FPGA,aiming at optimising the reception effect of the laser re-mote sensing detection system on the echo signals.The adaptive optical antenna achieves adaptive tracking and zoom by negative feedback adjustment mechanism,and makes real-time adjustment according to the received signal quality.

laser remote sensingadaptive trackingoptical antenna designFPGA

肖劲松、万绪伟、罗权、苏金善

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伊犁师范大学振动信号俘获与智能处理重点实验室,新疆伊宁 835100

激光遥感 自适应追踪 光学天线设计 FPGA

国家自然科学基金

62165015

2024

激光杂志
重庆市光学机械研究所

激光杂志

CSTPCD北大核心
影响因子:0.74
ISSN:0253-2743
年,卷(期):2024.45(6)
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