Many applications have required the positioning accuracy of a GLOBAL Navigation Satellite System (GNSS). Some applications exist in environments that attenuate GNSS signals, and, consequently, the received GNSS signals become very weak. Examplesofsuchapplicationsarewirelessdevicepositioning,positioninginsensor networks that detect natural disasters, and orbit determination of geostationary and high earth orbit (HEO) satellites. Conventional GNSS receivers are not designed to work with weak signals. This book presents novel GNSS receiver algorithms that are designed to work with very weak signals.
標簽： Receivers Signals GNSS Weak for
上傳時間： 2020-06-09
上傳用戶：shancjb
As you may have guessed from the title, this book is about GPS (the satellite-based GLOBAL Positioning System) and maps; digital maps to be exact.
標簽： GPS_for_Dummie
上傳時間： 2020-06-09
上傳用戶：shancjb
Of the various applications that satellites have been used for, one of the most promising is that of GLOBAL positioning. Made possible by GLOBAL Navigation Satellite Systems, GLOBAL positioning enables any user to know his or her exact position on Earth. Nowadays, the only fully functioning system is the American GLOBAL Positioning System (GPS). However, the European system, known as Galileo, is expected to be operative in 2012.
上傳時間： 2020-06-09
上傳用戶：shancjb
keil5 漂亮的主題包，看起來很舒服解壓文件，把GLOBAL.prop文件復制、替換到 “\Keil_v5\UV4“keil5安裝路徑下重啟keil5就可以了，有必要可以保留自己原版本的GLOBAL.prop文件 ，以便恢復
標簽： keil
上傳時間： 2022-02-01
上傳用戶：
在全球氣候變暖和石油資源短缺的形勢下,推動新能源汽車的發展將成為汽車行業一種新的發展方向。在大力發展新能源電動汽車行業的同時還應兼顧電動汽車充電設施的發展,因此對電動汽車充電樁的設計與研究顯得十分必要。對電動汽車直流充電樁的硬件系統進行設計,主要的硬件電路包括安全監測電路、總壓采集電路、溫濕度檢測電路、語音電路。軟件包括主要流程圖和溫濕度檢測流程圖。Under the situation of GLOBAL warming and shortage of petroleum resources,promoting the development of new energy vehicles will become a new development direction for the automotive industry.While vigorously developing the new energy electric vehicle industry,we should also take into account the development of electric vehicle charging facilities.Therefore,the design and research of electric vehicle charging piles is very necessary.The hardware system of the electric vehicle DC charging pile is designed.The main hardware circuits include safety monitoring circuit,total voltage collecting circuit,temperature and humidity detecting circuit,voice circuit and CAN communication.The software includes a main flow chart and a temperature and humidity detection flow chart.
標簽： 電動汽車
上傳時間： 2022-04-03
上傳用戶：jason_vip1
INTERNATIONAL STANDARD NORME INTERNATIONALEPart 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.About the IEC The International Electrotechnical Commission (IEC) is the leading GLOBAL organization that prepares and publishes International Standards for all electrical, electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published.
標簽： IEC
上傳時間： 2022-04-19
上傳用戶：fliang
主要內容一、物聯網概念的提出與演進二、世界主要國家/地區物聯網發展概況三、物聯網中的關鍵問題與典型案例四、物聯網相關標準發展概況五、RFID與嵌入式系統物聯網概念的提出與演進1999年，EPC GLOBAL前身麻省理工Auto-ID中心提出"Internet of Things"的構想：物品上裝置的電子標簽存儲唯一的EPC碼，利用RFID技術完成標簽數據的自動采集，通過與互聯網相連的EPC IS服務器提供對應該EPC的物品信息-物品信息互聯網絡2005年，國際電信聯盟（ITU）發布名為《Internet of Things》的技術報告：“物聯網”是信息和通信技術（ICTs）中的新維度from anytime，any place connectivity for anyone，we will now have connectivity for anything RFID技術、傳感器技術和嵌入式智能技術是物聯網的基礎使能性技術2008年，IBM提出“智慧的地球：Smart Planet"首先，各種創新的感應科技被嵌入各種物體和設施中，令物質世界被極大程度的數據化第二，隨著網絡的高度發達，人、數據和各種事物都將以不同方式聯入網絡第三，先進的技術和超級計算機則可以對這些堆積如山的數據進行整理、加工和分析，將生硬的數據轉化成實實在在的洞察，并幫助人們做出正確的行動決策
上傳時間： 2022-06-26
上傳用戶：
弗洛伊德 (Thomas L.Floyd) (作者), 余璆 (譯者)。《國外電子與通信教材系列:數字電子技術(第10版)》是一本關于數字電子技術的經典教材。最新版適應全球化。帶來了新的一些改動,包括圖畫更豐富，引進了 Moore and Mealy 狀態機等。
標簽： 數字電子技術
上傳時間： 2022-06-27
上傳用戶：bluedrops
Keil Theme Selector V1.0.zip\Keil Theme Selector V1.0\Keil Theme Selector 里面有prop文件，用漢字表明了顏色，修改名字為GLOBAL.prop覆蓋到UV4文件夾即可每個文件都親測可用。
標簽： keil
上傳時間： 2022-07-21
上傳用戶：
Meta首份元宇宙白皮書稱，如果元宇宙技術從 2022 年開始被采用，到 2031 年，元宇宙技術將為全球 GDP 貢獻 3.01 萬億美元，其中三分之（1.04 萬億美元）來自亞太地區。2022-the-potential-GLOBAL-economic-impact-of-the-metaverse報告原文下載，PDF文檔下載
上傳時間： 2022-07-26
上傳用戶：canderile
