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Satellite-UAV-Vehicle

  • 數字衛星設備控制兼容的天線供電系統設計

    Abstract: This application note discusses a design for a phantom antenna power-supply system compatible with theDigital Satellite Equipment Control (DiSEqC) communication standard, using the MAX16948 automotive dual, highvoltageLDO/switch. The presented application circuit provides a remote antenna power supply and also enables onewaycommunication from the radio head unit to the remote antenna. This system architecture offers flexibility inDiSEqC tone-burst frequency choice (100Hz to 30kHz), enabling users the ability to select the best frequency for theirapplication.

    標簽: 數字衛星 控制 兼容 供電系統設計

    上傳時間: 2013-11-17

    上傳用戶:fnhhs

  • 基于光電傳感器導向的AGV控制系統的設計_開題報告(宋延華)_畢業論文(設計)

    本課題選用光電傳感器作為導向傳感器,以設計出使用方便、價格低廉、引導精確、響應速度快的AGV工廠自動運貨車為研究目的。 AGV是自動導引運輸車(Automated Guided Vehicle)的英文縮寫,是當今柔性制造系統(FMS)和自動化倉儲系統中物流運輸的有效手段。自動導引運輸車系統的核心設備是自動導引運輸車,作為一種無人駕駛工業搬運車輛,一般用蓄電池作為動力,載重量從幾公斤到上百噸,工作場地可以是辦公室、車間,也可以是港口、碼頭。 現代的AGV都是由計算機控制的,車上裝有微處理器。多數的AGVS配有系統集中控制與管理計算機,用于對AGV的作業過程進行優化,發出搬運指令,跟蹤傳送中的構件。裝備有電磁或光學等自動導引裝置,能夠沿規定的導引路徑行駛,具有安全保護以及各種移載功能的運輸車,工業應用中不需駕駛員的搬運車,以可充電之蓄電池為其動力來源。一般可透過電腦來控制其行進路線以及行為,或利用電磁軌道(electromagnetic path-following system)來設立其行進路線,電磁軌道黏貼於地板上,自動導引運輸車則依循電磁軌道所帶來的訊息進行移動與動作。 AGV以輪式移動為特征,較之步行、爬行或其它非輪式的移動機器人具有行動快捷、工作效率高、結構簡單、可控性強、安全性好等優勢。與物料輸送中常用的其他設備相比,AGV的活動區域無需鋪設軌道、支座架等固定裝置,不受場地、道路和空間的限制。因此,在自動化物流系統中,最能充分地體現其自動性和柔性,實現高效、經濟、靈活的無人化生產。 AGV的常用引導方式有電磁感應式引導,激光引導,電磁陀螺式引導等,通過對這種引導方式的比較,我們選用光電傳感器作為導向傳感器,因為光電檢測方法具有精度高、反應快、非接觸等優點,而且可測參數多,傳感器的結構簡單,形式靈活多樣。選用紅外傳感器作為蔽障傳感器,因為紅外線對外界環境光線的適應能力比較強。用直流測速發電機作為速度傳感器。設計出使用方便、價格低廉、引導精確、響應速度快的AGV。

    標簽: AGV 光電傳感器 控制系統 報告

    上傳時間: 2015-01-02

    上傳用戶:LANCE

  • 物流分析工具包。Facility location: Continuous minisum facility location, alternate location-allocation (ALA)

    物流分析工具包。Facility location: Continuous minisum facility location, alternate location-allocation (ALA) procedure, discrete uncapacitated facility location Vehicle routing: VRP, VRP with time windows, traveling salesman problem (TSP) Networks: Shortest path, min cost network flow, minimum spanning tree problems Geocoding: U.S. city or ZIP code to longitude and latitude, longitude and latitude to nearest city, Mercator projection plotting Layout: Steepest descent pairwise interchange (SDPI) heuristic for QAP Material handling: Equipment selection General purpose: Linear programming using the revised simplex method, mixed-integer linear programming (MILP) branch and bound procedure Data: U.S. cities with populations of at least 10,000, U.S. highway network (Oak Ridge National Highway Network), U.S. 3- and 5-digit ZIP codes

    標簽: location location-allocation Continuous alternate

    上傳時間: 2015-05-17

    上傳用戶:kikye

  • dvbsnoop is a DVB/MPEG stream analyzer program. The program can be used to sniff, monitor, debug, d

    dvbsnoop is a DVB/MPEG stream analyzer program. The program can be used to sniff, monitor, debug, dump or view DVB/MPEG/DSM-CC/MHP stream information (digital television or data broadcasts) sent via satellite, cable or terrestrial.

    標簽: program dvbsnoop analyzer monitor

    上傳時間: 2013-12-14

    上傳用戶:zhangyi99104144

  • This m-file simulates MPSK (theoretical and simulated) with Gray coding This m-file simulates MPSK

    This m-file simulates MPSK (theoretical and simulated) with Gray coding This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).

    標簽: simulates m-file This MPSK

    上傳時間: 2014-01-11

    上傳用戶:372825274

  • This submission includes the presentation and model files that were used in delivering a webinar on

    This submission includes the presentation and model files that were used in delivering a webinar on 12-15-05 that covered the topic of modeling Hybrid Electric Vehicles. Hybrid electric vehicles (HEVs) have proven they can substantially improve fuel economy and reduce emissions. Because HEVs combine an electric drive with the internal combustion engine (ICE) in the powertrain, the vehicle?s kinetic energy can be captured during braking and transformed into electrical energy in the battery. The dual power source also means that the ICE can be reduced in size and can operate at its most efficient speeds.

    標簽: presentation submission delivering includes

    上傳時間: 2015-12-24

    上傳用戶:zl5712176

  • This paper investigates the design of joint frequency offset and carrier phase estimation of a mult

    This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.

    標簽: investigates estimation frequency carrier

    上傳時間: 2015-12-30

    上傳用戶:ls530720646

  • Digital broadcasting systems for television, sound and data services Framing structure, channel c

    Digital broadcasting systems for television, sound and data services Framing structure, channel coding and modulation for 11/12 GHz satellite services

    標簽: broadcasting television structure services

    上傳時間: 2016-01-03

    上傳用戶:rishian

  • This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding.

    This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).

    標簽: theoretical simulates simulated results

    上傳時間: 2016-01-19

    上傳用戶:pompey

  • There are numerous MATLAB m-files included in this software package. Thus, the the authors have bund

    There are numerous MATLAB m-files included in this software package. Thus, the the authors have bundled all files and sample data in a *.zip file (KTHorb.zip). The Readme.txt file describes the directories created when the .zip file is unpacked. The file Matlab_implementation.doc (or Matlab_implementation.txt) describes some of the classes and methods included in the package for GPS satellite orbit interpolation.

    標簽: the numerous included software

    上傳時間: 2016-03-08

    上傳用戶:qweqweqwe

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