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深弹水中下潜攻击弹道的测试可以采用声外测和惯性测量组合内测的方法,可根据不同的使用环境和需求进行选择,而水下声外测的动态测试精度一般难以验证。提出采用坐标转换和对时同步,将声外测得到的弹道轨迹和惯组内测得到的弹道轨迹统一到同一大地坐标系,选取相同的时间点,对测量结果进行比对,完成声外测对深弹水下运动轨迹跟踪定位精度的验证。简要介绍了试验方案和数据处理方法,给出了比对实例,比较了两种弹道测试方法给出的水下运动目标位移、速度及下滑角度。
Deep-water underwater dive attack ballistic test can be combined with acoustic measurement and inertial measurement method, according to different environments and needs to choose, and underwater acoustic measurement of dynamic test accuracy is generally difficult to verify. It is proposed that coordinate transformation and time synchronization should be used to unify the ballistic trajectory obtained from the measurement of the sound and the trajectory of the trajectory measured by the inertial measurement unit into the same earth coordinate system and select the same time point to compare the measurement results to complete the acoustic measurement Verification of Trackball Positioning Accuracy for Depth Underwater Trajectory. A brief introduction of the experimental scheme and data processing method is given. A comparison example is given. The displacement, velocity and glide angle of the underwater sports target given by the two ballistic test methods are compared.