KEYWORDS: Roads, LIDAR, Data conversion, Unmanned aerial vehicles, Diseases and disorders, Data processing, Data modeling, Transportation, Sensors, Laser frequency
In view of the situation that using vehicle mounted sensors to detect ruts in rut detection technology can cause secondary pressure damage to the road surface ,a method of using multi rotor unmanned aerial vehicles equipped with laser radar to detect ruts is proposed ,and a scheme of multi rotor unmanned aerial vehicles equipped with laser radar acquisition system is designed .Existing rut calculation methods are analyzed, and virtual wire method is used to calculate rut depth .Laser radar data on the Zhenglan Banner section of the national highway G207 are actually collected .Study the characteristics of the road segment data, verify the rutting algorithm in this article, and provide rutting road segment results.
Compared to coherent beam combining, incoherent beam combining can complete the output of high power laser beam with high efficiency, simple structure, low cost and high thermal damage resistance, and it is easy to realize in engineering. Higher target power is achieved by incoherent beam combination which using technology of multi-channel optical path correction. However, each channel forms a spot in the far field respectively, which cannot form higher laser power density with low overlap ratio of faculae. In order to improve the combat effectiveness of the system, it is necessary to overlap different faculae that improve the target energy density. Hence, a novel method for incoherent combining of far-field laser beams is present. The method compromises piezoelectric ceramic technology and evaluation algorithm of faculae coincidence degree which based on high precision multi-channel optical path correction. The results show that the faculae recognition algorithm is low-latency(less than 10ms), which can meet the needs of practical engineering. Furthermore, the real time focusing ability of far field faculae is improved which was beneficial to the engineering of high-energy laser weapon or other laser jamming systems.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.