查询词典 flight vehicle

Finally, the flight control system of aerospace vehicle under hypersonic condition is designed by using the proposed method.

最后，将该算法用于空天飞行器姿态控制系统的设计，仿真结果表明了该算法的有效性。

By analyzing the results obtained above, the dynamic characteristics and flight specialty of hypersonic vehicle can be understood.

此外，还能为高超声速飞行器的飞行控制系统设计提供适当的被控对象。

Furthermore, it is possible to provide appropriate objects to design flight control systems for hypersonic vehicle.

针对高度非线性和强耦合的高超声速飞行器数学模型，引入了反馈线性化原理，将其非线性的数学模型转化成符合控制设计要求的等效线性模型。

A pilot vehicle system mathematical model containing nonlinear control elements of the flight control system is established by the describing function method; the limit cycle of PVS is determined; the relation between the limit cycle and pilot induced oscillation and the influence of nonlinear control elements on PIO are explored.

采用描述函数法建立了含有非线性控制系统的人机系统数学模型，确定了系统的极限特性，探讨了极限环与驾驶员诱发振荡之间关系和操纵系统非线性因素对PIO影响等。

Using this method, the controller design for performance and robustness can be designed separately, which has the potential to overcome the conflict between performance and robustness in the traditional feedback framework. Third, to make the vehicle meet the performance index in full flight envelop, a H∞ gain-scheduled controller based on Linear Varying Parameter system are designed. A LPV plant with a linear fractional dependent variable can be represented by upper LFT (Linear Fractional Transformation) interconnection.

通过把非线性系统简化为了线性变参数系统，再有通过线性分式变换将LPV系统转化为一个线性定常系统和不确定性组成的LFT互联形式，使之转换成为一个经典鲁棒控制问题，然后通过求解一组线性矩阵不等式得到变增益H_∞控制器。

The objective of this paper is to design the reentry flight control laws for the Suborbital Reusable Launch Vehicle based on nonlinear dynamic-inversion.

基于非线性动态逆理论，设计了亚轨道可重复使用运载器的再入控制律。

CPU of airborne computer implements existing data acquisition of unpiloted vehicle with low efficiency. To improve the efficiency and to solve problems on reliability, real time and precision, the design of acquisition system based on DSP which can make a circuit acquisition for 54 channels data is put forward. After acquisition, the data can transfer between the system and CPU of airborne computer through dual-port RAM. The software and hardware methods to revise ADC on DSP are described. Evidences show that the system can meet with the flight control system on reliability, real time and precision.

现有无人飞行器数据采集均由机载计算机主处理器完成，效率较低，为了提高效率，解决数据采集的可靠性、实时性及精度等问题，设计了一种基于DSP处理器的数据采集系统，该数据采集系统能够对54路模拟量进行巡回采集，给出了系统的软硬件实现方法，在数据采集结束后，系统通过双端口RAM与机载计算机主处理器进行数据传递；为了提高DSP片内ADC的采集精度，给出了片内ADC的软硬件校正方法；实验证明，该系统具有较高的可靠性，能够满足飞行控制系统对传感器数据采集的实时性及精度要求。

The plant may be used in a vehicle such as an aircraft in order to provide a vertical take-off and hover capability as well a level flight power source.

该设备可以在如航空器的交通工具中使用，以提供垂直起飞和盘旋能力，以及用作水平飞行动力源。

Navy's MQ-8B Fire Scout unmanned aerial vehicle made its first flight this week, at the Webster Field annex of Patuxent River Naval Air Station, in St.

美海军国中MQ行销火童军无人机进行首次飞行本周韦伯斯特在外地附件patuxent河海军航空站圣inigoes、马里兰

Flight mechanics ; Towed air-launch system ; Reusable launch vehicle; Catenary theory ; Towline

飞行力学；拖曳式空中发射系统；重复使用运载器；悬垂线理论；拖缆

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。