近岸渔网激光探测特性与实验研究  

Laser detection characteristics and experimental study of inshore fishing net

作　　者：张鑫 宗思光[1] 余扬[2] 梁善永[1] ZHANG Xin;ZONG Siguang;YU Yang;LIANG Shanyong(Collegeof Electronic Engineering Naval University of Engineering,Wuhan 430033,China;WUhan University,Wuhan 430070,China)

机构地区：[1]海军工程大学电子工程学院,武汉430034 [2]武汉大学,武汉430070

出　　处：《激光杂志》2023年第3期105-110,共6页Laser Journal

基　　金：国防科研基金(No.2019-JCJQ-JJ-056)。

摘　　要：在近海岸复杂水体环境下,弱小渔网目标的探测、识别、定位具有较强的挑战性。针对以上问题,采用脉冲激光探测的方式,基于积分雷达方程,仿真分析了渔网目标倾角、探测距离和漫反射强度对接收回波能量的影响,搭建了渔网后向散射回波探测系统,对不同条件下的回波信号进行了验证分析。结果表明,探测距离4 m时渔网目标探测信噪比最高;随距离的增加,目标回波信号峰值幅度逐渐降低;目标倾角为正值的回波强度强于目标倾角为负值的回波强度。验证了脉冲激光探测技术在水下渔网探测理论及方法的可行性。可为水下渔网探测技术工程化提供支撑。In the complex water environment near the coast,the detection,recognition and positioning of weak and small fishing net targets are very challenging.In view of the above problems,the paper adopts the pulse laser detection method,based on the integral radar equation,simulates and analyzes the influence of the fishing net target inclination,detection distance and diffuse reflection intensity on the received echo energy,builds the fishing net backscatter echo detection system,and verifies and analyzes the echo signals under different conditions.The results show that the signal-to-noise ratio of fishing net target detection is the highest when the detection distance is 4m;With the increase of distance,the peak amplitude of target echo signal decreases gradually;The echo intensity with positive target inclination is stronger than that with negative target inclination.The feasibility of the theory and method of pulse laser detection technology in underwater fishing net detection is verified.It can provide support for the engineering of underwater fishing net detection technology.

关 键 词：积分雷达方程 渔网探测 激光雷达 仿真研究 实验研究 

分 类 号：TN249[电子电信—物理电子学]