CAJ | 학술논문

针对侧扫声纳系统声图中的几何失真问题，通过拖鱼坐标系的七参数模型，分析了侧扫声纳系统拖鱼姿态、速度、升沉及声线弯曲对侧扫声纳声图造成的几何失真，建立了声图中拖鱼姿态改正、船速和升沉改正以及声线弯曲改正模型，并分析模型误差。研究结果表明：所用模型可有效改善声图的几何形变，模型误差小，对水下目标探测具有一定的理论和实践意义。
침대측소성납계통성도중적궤하실진문제，통과타어좌표계적칠삼수모형，분석료측소성납계통타어자태、속도、승침급성선만곡대측소성납성도조성적궤하실진，건립료성도중타어자태개정、선속화승침개정이급성선만곡개정모형，병분석모형오차。연구결과표명：소용모형가유효개선성도적궤하형변，모형오차소，대수하목표탐측구유일정적이론화실천의의。
In order to correct the geometric distortion in Side-Scan Sonar images, this study using the seven-parameters transform formula of the tow coordinate, analyzed the effect of tow’s attitude, speed, heave and sound velocity profile, geometric distortion in side scan sonar, and derived the model for correcting geometric distortion produced by tow’s attitude, speed, heave and sound velocity profile. The study result shows that the model can correct geometric distortion in side scan sonar image effectively, with little error, having theoretical and practical significance in target-detecting underwater.