Research On Wide-spectrum Image Data Acquisition System In Twodimensional Laser Warning

In the new historical period and international strategic environment,laser technology has received wide attention in the modern military field.To cope with the increasing laser threats,laser warning technology has become a hot spot for research in countries around the world.How to efficiently and accurately obtain laser wavelength,orientation,pulse width and other information to achieve accurate identification of laser equipment types is an important challenge that needs to be solved in laser warning technology at present.For this reason,this thesis investigates the part of high speed and accurate data transmission in a high precision,wide spectrum laser warning integrated detection system.Firstly,the simple working principle of the grating diffraction two-dimensional laser warning system is analyzed,and then it is derived adout the theoretical equation of the incident laser wavelength and angle.In addition,the appropriate broad-spectrum camera,lens focal length parameters and grating constants are selected to meet the requirements of accuracy and reliability of the warning system data transmission.Secondly,this paper proposes a high-speed image data transmission system based on Gigabit Ethernet,which meets the requirements of real-time monitoring and precise warning of the laser integrated warning machine.The Ethernet communication module circuit is designed so that the diffraction spot images can be captured by the broad-spectrum camera,and the highspeed and reliable data transmission is completed by this module;the image visualization interface of the upper computer is designed,and the data is transmitted by the USB interface module to realize the diffraction spot image display,so that the reliability of the Ethernet transmission effect can be verified;the experimental test system is built to capture the laser diffraction images of 532 nm and 1313 nm wavelength,and verify the imaging effect of visible and near-infrared wavelengths.Later,it analyze the imaging effect of the optical part of the laser warning system through the diffraction spot images.This system is assembled and tested in the broad spectrum of two-dimensional laser warning data acquisition system,and the transmission efficiency of the data transmission system is tested through the wireshark tool,and the measurement results are analyzed.Finally,the two-dimensional laser warning test system was built for acceptance.The experimental test results show that the image data transmission system meets the real-time highprecision detection requirements of the two-dimensional laser warning system in terms of imaging quality and transmission reliability.In addition,the actual Gigabit Ethernet data transmission rate of the system can reach up to 590 Mbps,which is nearly 60% of the full transmission rate,providing high-speed and reliable data information for the high-precision and high-speed two-dimensional laser warning system.