查询词典 instrument flight

The common method, that all strong-correlation terms of the model are eliminated, can bring the loss in the engineering application, so the new method is proposed that the identified model reserves some correlation. The augmented matrix A is constructed by the outputΔW and the matrix S. The"determinating order based on ratio of determinant"is brought out to screen the strong-correlation terms in the structure identification. The latent root estimation is improved in screening the eigenvalues and eigenvectors. Thus the estimation precision is improved greatly.The consistence check of guidance instrument error coefficients of flight test and ground test is the purpose of flight experiment. The causes of inconsistency of the two models are analyzed. The hypothesis test of linear regression model based on F statistics is proposed to check the consistence.Finally, the instability of error coefficients is probably caused by the change of the flight environments, therefore, the relation between the error coefficients and flight environment is analyzed. The approach is presented to identify SINS guidance instrument error models and compensate the error in the segmented sections corresponding to the change of vertical acceleration of aircraft.

在结构辨识中，常用的方法由于将模型中的强相关项全部剔除而给工程应用带来损失，因此，本文提出了新的有益思想，即在保留一定相关性的基础上进行辨识：将输出向量ΔW与环境函数矩阵S构成增广矩阵A，然后采用"比定阶行列式"来剔除相关向量的方法，这样既可以尽可能多地保留了对落点影响大的强相关参数，又可以对落点影响小的强相关参数给予剔除；在参数估计中，改进了特征根估计中特征根和特征向量的筛选方法，提出"近零"准则，从而大大提高了参数估计的精度；再者，鉴于天地模型"一致性"检验是飞行试验和SINS制导工具误差系数分离的主要目的，因此，本文又深入分析了造成天地模型不一致的原因，提出了采用基于F统计的线性回归模型假设检验方法来进行捷联制导工具误差模型的天地"一致性"检验；最后，鉴于飞行环境剧烈变化可能会对惯性仪表误差系数稳定性带来一定的影响，因此本文深入地分析了SINS制导工具误差系数与外界环境的关系，提出了基于过载变化大小的分段辨识和分段实时补偿的算法。

At present, PR has extensive and important applications in many aspects such as space flight, aviation, busywork in sea and land, underground exploitation, manufacturing, computer-aided medical instrument, biological engineering and micro mechatronics system and so on.

目前，并联机器人已经在航天、航空、海底作业、地下开采、制造业、计算机辅助医疗设备、生物工程以及微机电系统等方面有着广泛而重要的应用。

Introduced a new UAV ground station software based on the techonlogy of vector map and virtual instrument. It also can plan the UAV flight line and monitor flight status in the vector map.

介绍了一种新的基于矢量地图和虚拟仪表技术的无人机导航地面站软件，在此基础上实现了导航地面站航线规划和目标跟踪功能。

The graphics display plays more and more important role in the Electronic Flight Instrument System.

机载电子综合显示系统中，图形显示占据重要的地位。

The problem of track measurement of model free flight by optical instrument is studied mainly.

主要讨论了采用光测设备测量模型自由飞的轨迹问题。

Be able to understand the basic concept and theory of composite instrument system and Electronic flight information system.

能了解复合式仪表系统与电子化飞行资讯系统架构。

L EFIS(electronic flight instrument system )— this system providesdisplays of information from various airplane systems.

l 电子飞行仪表系统——此系统提供飞机各系统不同系统的显示。

EFIS(electronic flight instrument system )— this system providesdisplays of information from various airplane systems.

电子飞行仪表系统——此系统提供飞机各系统不同系统的显示。

U.S. general aviation as a result of continued growth, the United States already have a complete general aviation industry, whose members include the following: United States aircraft manufacturers, parts manufacturers to the United States, the United States instrument avionics manufacturers, flight schools in the United States, the United States Flying Club, the United States Flight Simulator manufacturers, the United States maintenance base fixed, the United States airport development and management company, sales of U.S. aircraft, the U.S. aircraft leasing companies, aircraft broker the United States, the United States valued the company aircraft, the U.S. aircraft renovation company, the U.S. aircraft loans and insurance companies, property management companies to share the United States, the U.S. investment management business, the United States aviation fuel suppliers, the United States, such as security consultants.

由於美国通用航空的持续成长，美国已具备完整的通用航空工业，其成员包括：美国飞机制造商、美国零配件制造商、美国航空电子仪表制造商、美国飞行学校、美国飞行俱乐部、美国飞行模拟器制造商、美国固定维修基地、美国机场开发管理公司、美国飞机销售商、美国飞机租赁公司、美国飞机中介公司、美国飞机估价公司、美国飞机装修公司、美国飞机贷款和保险公司、美国产权分享管理公司、美国投资管理商、美国航油供应商、美国安全保障顾问公司等。

In order to investigate and develop advanced flight simulator with high fidelity and provide the simulator with actual and reliable navigation data, the data structure requirements of navigation database for the system of flight simulator prototype are presented. These requirements including the airport, runway, very high frequency omnidirectional radio range, instrument landing system, distance measuring equipment system, nondirectional beacon and marker beacon.

为了研究开发高逼真度的飞行模拟器，并为之提供真实可靠的导航数据，提出了飞行模拟器原型系统导航数据库的数据结构要求，即机场、跑道、甚高频全向信标、仪表着陆系统、测距仪系统、中波导航台和指点信标的数据结构要求。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。