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机载     
相关语句
  airborne
    Study of Airborne Digital Map Technique and Its Application
    机载三维数字地图技术及应用研究
短句来源
    MONOPULSE TECHNIQUE IN AIRBORNE RADAR
    机载雷达中的单脉冲技术
短句来源
    DESIGN OF AIRBORNE FIBER-OPTIC DATA BUS SYSTEM
    机载光纤数据总线系统的设计
短句来源
    L-Band Airborne TV Transmission Antenna
    机载L波段电视发射天线
短句来源
    PERFORMANCE EVALUATION OF FREQUENCE DOMAIN CFAR PROCESSING IN MEDIUM PRF AIRBORNE PD RADAR
    中等PRF机载PD雷达频域恒虚警处理性能计算
短句来源
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  an airborne
    Application of a Kalman Filter in an Airborne Tracking Servo System
    卡尔曼滤波器在机载跟踪伺服系统中的应用
短句来源
    Semi-physical Simulation Test of an Airborne Comprehensive Avionic System
    关于机载航空电子综合系统的半物理仿真测试
短句来源
    Engineering Development of an Airborne Prototype Integrated SINS/GPS System
    SINS/GPS组合导航系统机载样机的工程研制
短句来源
    Construction Design of Centrical Receiver in an Airborne Electronic Equipment System
    某机载电子设备系统中央接收机结构设计
短句来源
    Research on Methods of Stabilization &Tracking Control for an Airborne Electro-Optical Tracking &Pointing Platform
    机载光电跟瞄平台稳定与跟踪控制方法研究
短句来源
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  onboard
    British Onboard Oxygen Generating System
    英国机载三层同心圆型分子筛制氧系统
短句来源
    Development of molecular sieve oxygen generating system on board in Britain
    英国机载分子筛制氧系统简介
短句来源
    Study of Task Assignment of Aircraft Onboard Machine Electronic Equipment Control and Management Integrated
    机载机电设备综合控制管理系统任务分配研究
短句来源
    The Analysis and Comparison of LTPB and FDDI Network on Board
    机载LTPB与FDDI网络分析与比较
短句来源
    ASSESSMENT OF AIRCRAFT COMBAT SURVIVABILITY ENHANCED BY COMBINED RADAR STEALTH AND ONBOARD ELECTRONIC ATTACK
    雷达隐身和机载电子攻击组合增强的飞机作战生存力评估(英文)
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  airborne data
    Study and Realization of Airborne Data Bus Simulation System Based on Multithreading Technique
    基于多线程技术的机载总线仿真系统的研究与实现
短句来源
    Therefore the airborne data transmitting bus are one of the key technologies of the avionics integrated system. In the design of the avionics integrated system, the performance of the airborne data transmitting bus played an indispensable role.
    因而,机载数据传输总线是航空电子综合系统中的关键技术之一,在航空电子综合系统的设计中,机载数据传输总线的性能变得十分重要。
短句来源
    In addition, because the airborne data base is stored in flash memory that is inviolate and random access, the speed of data retrieval and access is improved and the airborne data is reliable.
    此外 ,以闪存为存储介质的内存数据库使系统检索和读取机载数据的速度大大提高 ,且闪存的非易失性保证了机载数据的可靠性
短句来源
    The contents include a distributed system architecture for airborne data acquisition,an open bus structure in data acquisition unit,the synchronous sampling of signals,digital signal processing,full software programming and automatic test,etc.
    主要内容有 :机载数据采集的分布式体系结构、采集器内部开放式总线结构、同步采样、数字信号处理、全软件编程和自动化检测 ;
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      airborne
    Analysis of airborne antenna using a FEM-UTD hybrid method
          
    In this paper, the near-field vector components were used to combine the FEM method and the uniform-geometrical theory of diffraction (UTD) method for analyzing phased array antenna mounted on an airborne platform.
          
    DBS imaging and GMTI in a wideband airborne mechanic scanning radar
          
    By compensating the range migration in wideband airborne mechanic scanning radar, the proposed DBS imaging algorithm can efficiently improve the resolution of a DBS image.
          
    The radome, which is often used to house airborne scanning radar antennas, causes a large boresight error and boresight error slope of the radar antenna.
          
    更多          
      an airborne
    In this paper, the near-field vector components were used to combine the FEM method and the uniform-geometrical theory of diffraction (UTD) method for analyzing phased array antenna mounted on an airborne platform.
          
    Development of an airborne SAR real-time digital imaging processor
          
    An airborne SAR real-time digital imaging processor is presented, and its real-time digital imaging principle and main technical parameters are analyzed briefly.
          
    Field detection of chlorophyll-a concentration in the sea surface layer by an airborne oceanographic lidar
          
    An airborne oceanographic lidar, with a frequency-tripled Q-switched Nd: YAG laser of 355 nm, has been designed to measure chlorophyll-a (Chl-a) concentration in the sea surface layer by the Ocean Remote Sensing Institute, OUC.
          
    更多          
      onboard
    The results of an analysis of velocity fluctuations in the plasma sheet of the Earth's magnetotail measured onboard INTERBALL Tail Probe satellite are presented.
          
    The determination was carried out using the data of onboard measurements of the Earth's magnetic field intensity.
          
    The onboard air compressor, gyrodynes, and the crew activity are among these sources.
          
    Some Features of Vibrational Perturbations onboard the MirOrbital Station
          
    A number of scientific and technical experiments were carried out and are still being carried out onboard the Mirorbital station in various fields: physics of fluids, space materials study, astrophysics, biotechnology, and so on.
          
    更多          
      airborne data
    These coefficients are recalibrated by minimizing the difference between airborne data and upward continued surface data (external calibration) and by minimizing the errors at line crossings (internal calibration) respectively.
          
    The methodology is based on fusing a variety of satellite-based image types (optical, thermal, microwave) together with airborne data (optical and thermal infrared) and ancillary data sources such as geological and topographic maps.
          
    It results in a fast and efficient algorithm which can be used worldwide (with the exception of the polar regions) for the reduction of airborne data used for geoid determination.
          
    Airborne data, obtained by COLD during research campaigns in Australia and Brazil in the frame of international projects, are also presented to demonstrate COLD in-flight performance.
          
    Effects of Airborne Data Link Communication on Demands, Workload and Situation Awareness
          
    更多          


    This paper sums up the investigation on application of the monopulse technique to airborne radar.Some typical airborne monopulse radar systems are discussed, and by taking the amplitude-comparison monopulse technique for an example, some cruxes in the monopulse technique are investigated and the data ensuring the performances of the system are given. The application of the monopulse technique to the angle-measurement and tracking in airborne radar are also described.The factors which influence the accuracy of...

    This paper sums up the investigation on application of the monopulse technique to airborne radar.Some typical airborne monopulse radar systems are discussed, and by taking the amplitude-comparison monopulse technique for an example, some cruxes in the monopulse technique are investigated and the data ensuring the performances of the system are given. The application of the monopulse technique to the angle-measurement and tracking in airborne radar are also described.The factors which influence the accuracy of the angle-measurement and tracking are pointed out and the performance of ECCM of the monopulse airborne radar is analyzed.Furthermore several particular applications of the monopulse technique to multifunction airborne radars, such as air-to-ground ranging, the improvement in angle resolution, terrain avoidance and following, etc. are discussed.Finally, it is pointed out that the main purposes in the application of the monopulse technique to airborne radar are to improve the performance of ECCM and to realize the multifunction of airborne radar by use of the signals in sum and difference beams.

    本文总结机载雷达中单脉冲技术的研究和应用,着重讨论幅度比较系统的关键技术,给出有关数据。 机载雷达中的单脉冲技术着眼于抗干扰性能和特殊应用。这些应用包括空对地测距、角分辨力改进、地形防撞。本文阐述了这些特殊应用。

    In this paper,a filtering theory is applied to the multiple closed-loop feedback system for tracking a single target in range,velocity,azimuth and elevation in an airborne radar.First of all,according to relative motion between.arget and antenna,the vector differential equation of the states used to control the four tracking loop is established.Then,the corresponding nonlinear filtering algorithm is derived.Finally,the results of computer simulation are given.The results of computer simulation show that in a...

    In this paper,a filtering theory is applied to the multiple closed-loop feedback system for tracking a single target in range,velocity,azimuth and elevation in an airborne radar.First of all,according to relative motion between.arget and antenna,the vector differential equation of the states used to control the four tracking loop is established.Then,the corresponding nonlinear filtering algorithm is derived.Finally,the results of computer simulation are given.The results of computer simulation show that in a wide range the time varying system using Kalman filter can keep better performance than the ordinary one without optimal filter.The system involving nonlinear filtering has a performance closed to the linear filtering one in steady-state response,but the former achieves performance improvement in transient response and in large error.Using Kalman filter,the tracking loops are coupled each other,and its performance is better than that of seperate loops.Finally,we show that a particular merit of this mathematical model,established in aim coordinate system,is less sensitive to target's manoeuvre.Therefore,the system performance is almost as good as an adoptive estimator,but which is sensitive to measurement noise.As the signal to noise ratio of radar varies in a wide range,we should take adaptive method in measuring noise.The technique used and results obtained are also available for ground radar,shipborne radar and other tracking systems,either active or passive.

    本文论述将滤波理论应用于机载雷达中对单个目标进行距离、速度、方位角和高低角跟踪的多环反馈系统。首先根据目标和天线的相对运动建立控制四坐标跟踪环所需的状态矢量微分方程,然后推导相应的非线性滤波算法。最后给出计算机的模拟结果。计算机模拟的结果清晰地说明采用最佳滤波的系统性能比通常的有很大改善,并且这种瞄准轴坐标系的最佳系统对目标的随机机动是不灵敏的。 本文所讨论的方法和得出的结论可以延用到地面雷达、舰载雷达以及其他有源和无源的跟踪系统。

    This paper presents a schematic system circuit diagram, manipulated by a microprocessor, for illustrating. The logic relations between the remote-controlled and sequence-controlled variables in the control system of a certain pilotless aircraft. Discussion is also made of interface circuits and system software design.The work is an attempt made to replace some airborne devices with a microprocessor.With substantial modification to the logic relations, the system software is designed to give a higher flging quality...

    This paper presents a schematic system circuit diagram, manipulated by a microprocessor, for illustrating. The logic relations between the remote-controlled and sequence-controlled variables in the control system of a certain pilotless aircraft. Discussion is also made of interface circuits and system software design.The work is an attempt made to replace some airborne devices with a microprocessor.With substantial modification to the logic relations, the system software is designed to give a higher flging quality and reliability and make the commanding and guideing operations more convenient for navigators on the ground.

    本文介绍某无人机遥控和程控控制量逻辑关系由微处理机来实现的系统方案,接口电路、以及系统软件的设计。这是应用微机技术,取代部分机载设备的一次赏试。在系统软件设计中,对控制量的逻辑关系作了较大的更动。这样就扩大了系统的功能,提高了飞行品质和可靠性,也有利于地面领航员的指挥引导。

     
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