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导出高精度海洋重力仪系统的速度控制方程、角速度控制方程和纬度控制方程。以高精度海洋重力仪系统中平台的横倾角、纵倾角、运载体的东向速度误差、北向速度误差和运载体的纬度误差为变量,导出高精度海洋重力仪系统误差模型,并进行了系统误差仿真实验.理论分析和仿真实验表明:高精度海洋重力仪的系统误差形成过程分为误差积累、误差衰减和误差稳定三个阶段;0~1800 s是系统误差积累阶段,最大系统误差约为3.0×10-6m/s2;由于水平阻尼网络的作用,从1800~3000 s是仪系统误差衰减阶段;3000 s以后,系统误差进入稳定阶段,仿真4000 s时,系统误差约为2.246×10-6m/s2。
Derive the speed control equation, angular velocity control equation and latitude control equation of high precision ocean gravity system. Taking the heliostat, heel angle, the eastward velocity error of the carrier, the northward velocity error and the latitude error of the carrier as the variables, the error model of the high precision ocean gravimeter was derived and the system Error simulation experiment.The theoretical analysis and simulation results show that the process of system error formation in high precision ocean gravity meter is divided into three stages: error accumulation, error attenuation and error stabilization. 0 ~ 1800 s is the accumulation phase of system error, and the maximum system error is about 3.0 × 10-6m / s2. Due to the effect of horizontal damping network, the system error attenuation stage from 1800 to 3000 s. After 3000 s, the system error entered a stable stage. When the simulation is 4000 s, the system error is about 2.246 × 10- 6m / s2.