导航系统

Intraoperative ultrasound is more accurate than intraoperative neuronavigator in deep intracranial cavernous angiomas resection.

在颅内深部海绵状血管瘤手术中术中超声定位较术中导航系统更加精确，有助于提高颅内深部海绵状血管瘤全切除率。

Three-dimensional visualization of brain atlases is an advanced technology that is very important to brain surgery navigation system, as a vital role in the positioning and surgical planning.

脑图谱的三维可视化是脑外科手术导航系统中一项关键技术，在对病灶的定位和手术计划上有着举足轻重的作用。

Based on the data of the investigation of the traffic volume and delay of the typical crossroads, this paper discusses the ways and means of modeling an Intersection Delay Model for crossroads, which is also applicable for VNS, and demarcates the model with necessary theoretical analysis.

论文通过城市路网中典型交叉口的流量、延误数据的分析，建立了城市路网中交叉口延误模型，在实测数据的基础上，标定了适用于车辆导航系统的交叉口延误模型。

It also exemplified some of the applications of these usages. Based on the data of the investigation of the velocity and traffic volume of the typical roads, this paper discusses the ways and means of modeling a Travel Time Model for Road Section, which is applicable for VNS, and demarcates the model.

论文分析了路网中典型路段的路段车速与流量调查、随车调查等实测数据，讨论了建立适用于车辆导航系统的路段行程时间模型的思路和方法，并标定了路段行程时间模型。

The method made lead and lag errors boil down to GPS errors, which could be emendated by map data on the basis of the observability of GPS errors along the vertical direction. A general Kalman filtering was constructed to process the information of corrected GPS and DRS later, Which decreased lead and lag errors in the integrated navigation system.

该方法是将超前滞后误差归结力为GPS误差，先利用GPS沿道路垂直方向上误差的可现测性进行GPS误差校正，再得校正的GPS信息与DRS信息进行卡尔曼滤波，从而喊少组合导航系统超前滞后误差。

In view of the characteristic of GPS/DR vehicle navigation system,a new federated filter was proposed.

针对车载GPS/DR组合导航系统的特点，提出了一种新的联邦滤波算法。

Application of Federated Filtering Theory to Designing Integrated Navigation Systems.

联邦滤波理论在组合导航系统设计中的应用。

The application of federated filtering algorithm to INS/GNSS/SAR system is investigated and its simulated.

研究了联邦滤波算法在INS/GNSS/SAR组合导航系统中的应用，并进行了仿真分析。

It has been very common to fly in heavy fogs and storms because of the improvement of navigation system.

由于改进了导航系统，所以在大雾和狂风暴雨中飞行早已成常事。

The plane homed to its carrier under the guide of electronic navigation system .

飞机在电子导航系统的引导下飞回防空母舰。home在这里作不及物动词，意为&回家&。

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。