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以空间机器人在轨服务为背景,建立了卫星在轨自维护系统的地面遥操作平台.远端由安装
在卫星本体上的一个四自由度机器人和灵巧手的臂/手系统组成,当卫星出现故障时,遥操作者通
过空间鼠标和力反馈数据手套分别控制远端的臂/手系统排除卫星故障,实现卫星的自我维护.对
于地面一太空之间通讯的大时延,利用3D图形预测仿真技术克服时延的影响,并采用虚拟夹具法提
高遥操作系统的安全性和操作性能.在大时延及变时延(约7 s)的条件下,实现了武汉遥操作哈尔
滨的自维护机器人臂/手系统,成功地完成了
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本文是一篇模拟GPS接收机实时接收卫星信号并显示的设计论文,主要目的是模拟从GPS接收机接收数据并通过RS-232串行通信标准接口传输,然后按照一定格式显示出来。本设计主要是利用Visual C++ 强大的集成开发环境和快速创建各种应用程序的能力,创建各种图形操作界面,来编写一个实时接收并显示信息的窗体应用程序。本文介绍了GPS的一些历史和发展前景,GPS定位系统概况,GPS的数据传输码制、输出格式和Visual C++ 的发展、作用、集成开发环境和基础知识,以及完成该程序的关键技术: VC++
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利用所学数据链路层原理,自己设计一个滑动窗口协议,在仿真环境下编程实现有噪音信道环境下两站点之间无差错双工通信。信道模型为8000bps全双工卫星信道,信道传播时延270毫秒,信道误码率为10-5,信道提供字节流传输服务,网络层分组长度固定为256字节。
通过该实验,进一步巩固和深刻理解数据链路层误码检测的CRC校验技术,以及滑动窗口的工作机理。滑动窗口机制的两个主要目标:(1) 实现有噪音信道环境下的无差错传输 (2)充分利用传输信道的带宽。在程序能够稳定运行并成功实现第一个目标之后,运
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The DiSEqCä system is a communication bus between satellite receivers and
satellite peripheral equipment, using only the existing coaxial cable.
DiSEqCä can be integrated into consumer satellite installations to replace all
conventional
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现代通信应用基础知识,以及所能应用到的相关知识。-The modern wireless wired communication technologies, including satellite communications, microwave relay communications and wireless communications.
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道路运输车辆卫星定位系统北斗兼容车载终端通讯协议技术规范-Road transport vehicles Beidou satellite positioning system vehicle terminal communication protocol compatible technical specifications
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The Multichannel Aviation Satellite Communications System (MCS SATCOM) is a worldwide mobile communications system providing continuous VOICE and DATA COMMUNICATION SERVICES to and from the Aircraft.In addition to the Airborne Avionics (referred to a
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计算机网络数据链路选择性重传实验。
设计一个滑动窗口协议,在仿真环境下编程实现有噪音信道环境下两站点之间无差错双工通信。信道模型为8000bps 全双工卫星信道,信道传播时延270毫秒,信道误码率为,信道提供字节流传输服务,网络层分组长度固定为256字节。-Computer network data link selective retransmission experiment. Design of a sliding window protocol in simulation pro
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Satellite packet communication service
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无线通信qpsk调制键控移相调制(QPSK):调制效率高,要求传送途径的信噪比低,适合卫星广播。
-The wireless communication phase shift keying modulation qpsk modulation (QPSK): high modulation efficiency of the transmission path low SNR required for satellite broadcasting.
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本程序包含中轨通信卫星C波段馈电链路上下行预算,以及S,L波段业务链路上下行链路预算,并附有word文档说明-The program contains the C-band communication satellite orbit feeder link budget down the line, as well as S, L-band uplink and downlink traffic link budget, along with word document explains
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小推力卫星轨道转移仿真,基于电推进的系统。研究分析从地球转移轨道得到静止轨道所需燃料。-The earth s communication satellite of concept design Based on the ion propulsion technology
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Direct sequence spread spectrum (DSSS) communication systems has been widely
used in these years for its advantage of wide spectrum, low working Signal-to-Noise
ratio (SNR), anti-interference, anti-multipath effect and capability of LPI and LPD.
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CDMA (OFDM-CDMA), offers several key advantages such as immunity against narrowband interference and robustness in frequency-selective fading channels[2]. Such desirable properties make MC-CDMA an attractive choice for the present and future radio-co
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提供单片机对北斗卫星定位模块通信协议NMEA0183解析的C语言编程。-Provide single chip microcomputer of beidou satellite positioning module communication protocol NMEA0183 parsing C language programming.
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JD-GCS01无人机地面站系统
产品介绍
JD-GCS01无人机地面站系统是无人机自动驾驶仪配套地面站指挥控制系统,内置60KM远距离通讯数传电台、图传及图像采集卡、GPS/BD双频卫星接收机、摇杆,具有便携、集成化高、处理能力强等特点。
电源:内置锂离子聚合物电池,可实现220V/电池双供电模式。
充电功耗:<15W;电池连续工作时间:>2h
外形尺寸:510x420x200mm 重量:6kg-JD-GCS01 UAV Ground Stati
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卫星移动通信的信道特点及仿真模型,AWGN信道估计matlab仿真。-Satellite mobile communication channel characteristics and simulation model, AWGN channel estimation matlab simulation.
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部标JT808服务端,JTT 808-2011 道路运输车辆卫星定位系统终端通讯协议及数据格式(Standard JT808 server, JTT 808-2011 road transport vehicle satellite positioning system terminal communication protocol and data format)
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在圆内随机分布的传感器节点利用波束成形与卫星直接通信。(Distributed sensor nodes that is randomly distributed in the circle can create a direct communication with satellite using Beamforming.)
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Node localization algorithms that can be easily integrated into deployed wireless sensor networks (WSNs)
and which run seamlessly with proprietary lower layer communication protocols running on off-the-shelf
modules can help operators of large farm
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