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本文介绍了一种用AT89C51单片机实现的卫星天线跟踪控制器的控制原理,硬件结构及软件设计方法.-This paper introduces the control principle of a satellite antenna tracking controller with AT89C51 microcontroller, the hardware architecture and software design methods.
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Radar systems, based on bistatic radar concept
attracted a substantial attention in the recent years. Passive
coherent location systems using “transmitters of opportunity”
like radio or TV broadcasters, GSM base stations,
satellite communicat
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很好的GPS/INS超紧组合导航的文章,关键词:GPS,INS,超紧组合导航,抗干扰-The performance of an Ultra-Tightly Coupled
(UTC) Global Positioning System/Inertial Navigation System
(GPS/INS) is evaluated using a system simulation of the GPS
receiver and navigation processing.
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针对小型无人机在无卫星导航信号条件下的导航问题, 结合光流及地标定位设计了使用摄像头、惯性测量器件、超声测距仪等传感器融合的无人机室内导航方法. 文章使用补偿角速率的光流微分法计算帧间像素点小位移, 并用前后误差算法提取精度较高的点, 避免像素点跟踪错误, 提高了光流测速的精度 对得到的光流场用均值漂移算法进行寻优, 得到光流场直方图峰值, 以此计算光流速度. 本文提出了无累积误差的连续地标定位算法, 实时测量无人机位置. 通过多速率卡尔曼滤波器对观测周期不一致的位置、速度信息进行最优估计. 在
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outputs tracking satellite for gps reciever
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design tracking and acquisition satellite for gps reciever
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