undershooting

Applying source vessel to undershooting in 3-D marine seismic survey

三维地震勘探双船作业中炮船的应用

The reasons of five error sources including vertical axis , horizontal axis , sight line coder , TV undershooting value which can result in TV tracking system errors are analyzed .

分析了电视跟踪系统的垂直轴、水平轴、视轴、编码器、电视脱靶量五个误差源产生误差的原因，探讨了误差的取舍方法及相应的计算公式。

Based on the characteristics of space kinetic energy interception and advantages of proportional guidance , taking controlling the undershooting rate into account to increase precision , a terminal guidance method was designed to space kinetic energy interception problem .

针对空间动能拦截的特点，利用了比例导引法控制视线转率的优点，兼顾考虑了控制脱靶量以提高动能拦截精度，设计了空间动能拦截末段导引法。

Dynamic errors chiefly comprise alteration error by instruments ' run , error compounded by undershooting quantity as a result of time sampling no-synchronous , optical axis swaying error and atmosphere trembling error and other errors etc.

动态误差主要有仪器运动带来的各环节的变动误差、时间采样不同步造成的脱靶量合成误差、视轴晃动误差、大气抖动以及其它误差等。