导航技术

Inertial navigation is a key technique in modern weapon systems and aeronautic and astronautic field.

惯性导航技术是广泛应用于现代武器系统与航空航天领域的一项关键技术。

Along with the fast development of the electric computer technipue and the advancement of the modern control system,the combitnaion airmanship developed very fast since the 1970s.

随着电子计算机技术特别是微机技术的迅猛发展和现代控制系统理论的进步，从70年代开始组合导航技术开始迅猛发展起来。

Strapdown inertial navigation system is a kind of very advanced inertial navigation technology,and it is the developing direction of inertial navigation.

捷联式惯性导航系统是一种十分先进的惯性导航技术，是近年来惯性技术的一个发展方向。

Inertial integrated navigation system is the development emphasis of modern navigation technology.

惯性导航组合系统是现代导航技术的发展重点。

Strap-down inertial navigation system is a kind of advanced inertial navigation technology, which is the developing direction of inertial navigation.

捷联式惯性导航系统是一种先进的惯性导航技术，是近年来惯性技术的一个发展方向。

The key to vision-based navigation is rapid detection and recognition of obstacles. Stereo vision is rapid, accurate and easy to conceal, as it is a passive measurement, which does not emit light and radiation.

在地面自主车的各项关键技术中，视觉导航的主要功能是对各种道路场景进行快速识别和理解，从而确定移动机器人的可行驶道路区域，而视觉导航技术的关键是障碍物的快速检测与识别。

Advancement of CT machine: Since CT machine has been applied, with unceasing development of computer technique, detector technique, X-ray technique and new micro-electron and micro-technique have been used, thereby performance of computerized X-ray tomography machine has been improved greatly, it is era-changing identification of computerized X-ray tomography scan from bed plane scan to spiral scan.

CT机的进展：CT机器自问世以来，随着计算机技术，探测器技术，X线技术的不断发展以及新的微电子和显微技术不断的应用于CT机，从而提高了CT机的性能，标志着CT扫描从层面扫描到螺旋扫描的换代。2）图象后处理技术：螺旋CT的出现及计算机软件的开发，利用导航技术做出具有3D仿真内窥镜的图象，既，这种新的影像学方法，引起了广泛的关注。

Advancement of CT machine : Since CT machine has been applied , with unceasing development of computer technique, detector technique , X-ray technique and new micro-electron and micro-technique have been used , thereby performance of computerized X-ray tomography machine has been improved greatly , it is era-changing identification of computerized X-ray tomography scan from bed plane scan to spiral scan. 2The image after-treatment technique: With emergence of spiral computerized X-ray tomography and exploi...

1CT机的进展：CT机器自问世以来，随着计算机技术、探测器技术、X线技术的不断发展以及新的微电子和显微技术不断的应用于CT机，从而提高了CT机的性能，标志着CT扫描从层面扫描到螺旋扫描的换代。2图象后处理技术：螺旋CT的出现及计算机软件的开发，利用导航技术做出具有3D仿真内窥镜的图象，既，这种新的影像学方法，引起了广泛的关注。

In order to solve the heavy workload and the low efficiency of the train maneuver, one kind of train security alarm system based on GPS and INS technique was presented. The Kalman filter used in the information fusion of GPS and ISN was analyzed, solving the problem of the infinite position error of an INS and the slow modification rate of a GPS. By using the original train database to correct the mileage, the precision of the system was improved.

为了弥补目前火车车辆运行中人工统计调度工作量大、效率低等缺陷，提出了一种基于全球定位系统和惯性导航技术的火车安全告警系统的设计方案；重点讨论了GPS/INS在信息融合时所使用的卡尔曼滤波方法，避免了独立的惯性导航系统无限位置误差和GPS的1 Hz慢速数据修正的问题；利用原有国家铁路网数据库进行数据修正，进一步提高了系统的精度。

Global navigation satellite system is the trend of development and application of CNS/ ATMtechnology in civil aviation.

全球导航卫星系统是当今民航导航技术发展的应用趋势。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。