提出了基于切换增益衰减因子的变切换增益变结构控制律,实现了高精度的分布式卫星构型保持鲁棒控制,较好地克服了误差收敛时间和控制精度的矛盾;
The robust precise formation keeping of the DSS was realized based on the control law, and the conflict between control time and control precision was conquered using the control law.
设计了一种高精度时间间隔测量模块,该模块由单片机控制,采用脉冲计数原理,通过测量时间间隔内高频参考时钟个数,得到被测时间间隔的精确值。
Based on pulse counting principle, the high precision time interval can be obtained by measuring the number of the high-frequency reference clock through it.
实验结果表明:采用输入指令整形减振技术和压电陶瓷相结合的抑振策略,系统稳定时间缩短80%以上,双重驱动的抑振策略实现了高速高精度的运动控制。
Experiments validate that the stabilizing time is reduced by 80%. The dual drive strategy is an excellent way to realize high speed, high precision motion control.
利用高精度GPS后处理软件GAMIT/GLOBK对厦门集美跨海大桥B级GPS控制网的实测数据进行处理,分析海潮对GPS控制网的影响,指出海潮改正对近海短时间GPS观测高程方向的影响可达数厘米。
By using the after-treatment software GAMIT/GLOBK of high precision GPS, it treats with the observational data of class-B GPS control network for the Xiamen Jimei cross-sea bridge.
利用高精度GPS后处理软件GAMIT/GLOBK对厦门集美跨海大桥B级GPS控制网的实测数据进行处理,分析海潮对GPS控制网的影响,指出海潮改正对近海短时间GPS观测高程方向的影响可达数厘米。
By using the after-treatment software GAMIT/GLOBK of high precision GPS, it treats with the observational data of class-B GPS control network for the Xiamen Jimei cross-sea bridge.
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