Software-defined radios (SDRs) have been around for more than a decade. The first complete Global Positioning System (GPS) implementation was described by Dennis Akos in 1997. Since then several research groups have presented their contributions. We therefore find it timely to publish an up-to-date text on the sub- ject and at the same time include Galileo, the forthcoming European satellite- based navigation system. Both GPS and Galileo belong to the category of Global Navigation Satellite Systems (GNSS).
標簽： A_Software-Defined_GPS_and_Galile o_Receiver
上傳時間： 2020-06-09
上傳用戶：shancjb
This book is about global navigation satellite systems (GNSS), their two main instru- ments, which are a receiver and a simulator, and their applications. The book is based on an operational off-the-shelf real-time software GNSS receiver and off-the-shelf GNSS signalsimulator.Theacademicversionsofthesetoolsarebundledwiththisbookandfree for readers to use for study and research.
標簽： Navigation Geophysics Satellite Digital and
上傳時間： 2020-06-09
上傳用戶：shancjb
XINUO GN150系列 船載GNSS導航接收機
上傳時間： 2021-10-15
上傳用戶：qdzhuning
Multisim官方示例Multisim仿真例程基礎電路范例135例合集:Chapter 1 - RLC CircuitsChapter 2 - DiodesChapter 3 - TransistorsChapter 4 - AmplifiersChapter 5 - OpampsChapter 6 - FiltersChapter 7 - Miscellaneous CircuitsFundamental Circuits.pdf004 Parallel DC Circuits.ms10005 Series-Parrallel DC Circuit.ms10006 Current Analysis.ms10007 Millmans Theorem 1.ms10008 Millmans Theorem 2.ms10009 Kirchhoff's Current Law.ms10010 Thevenin's Theorem.ms10011 Superposition Principle.ms10012 Nortons Theorem and Source Conversion.ms10013 AC Voltage Measurement.ms10014 Frequency Response of the Series RL Network.ms10015 RL High and Low Pass Filter.ms10016 Frequency Response of the Series RC Network.ms10017 RC High and Low Pass Filter.ms10019 Center-Tapped Full-Wave Rectifier.ms10020 Bridge Rectifier.ms10021 Capacitor-Input Rectifier Filter.ms10022 Diode Clipper (Limiter).ms10023 Diode Clipper.ms10024 Diode Clamper (DC Restorer).ms10025 Diode Voltage Doubler.ms10026 Zener Diode and Voltage Regulation 1.ms10027 Zener Diode and Voltage Regulation 2.ms10028 Zener Diode and Voltage Regulation 3.ms10105 TTL Inverter.ms10107 TTL Gate.ms10109 OR Gate Circuit.ms10111 Over-Damp Circuit.ms10113 Critical-Damp Circuit.ms10115 Series RLC Circuit 1.ms10117 Clapp Oscillator.ms10119 Differential Amplifier 1.ms10121 Differential Amplifier in Common Mode.ms10123 LC Oscillator with Unity Gain Buffer.ms10125 Notch Filter.ms10127 PNP Differential Pair.ms10129 Crossover Network.ms10131 Second-Order High-Pass Chebyshev Filter.ms10133 Third-Order High-Pass Chebyshev Filter.ms10135 Fifth-Order High-Pass Filter.ms10
標簽： multisim
上傳時間： 2021-10-27
上傳用戶：trh505
ADS1118模塊資料熱電偶測量文檔資料硬件參考設計及MSP430軟JDEMO代碼:430BOOST-ADS1118 Booster Pack.pdfADS1118-english.pdfads1118.pdfCJMCU-1118資料IMP NOTICE for REF DESIGNS.pdfMSP430-ADS1118PCBPrecision Thermocouple Measurement with the ADS1118.pdfSCH and BOMTemperature Sensing.pdf使用ADS1118進行精密熱電偶測量.pdf模數轉換術語詞匯表.pdf高速數據轉換.pdf
上傳時間： 2021-11-03
上傳用戶：zhaiyawei
TwinCAT 3 入門教程Version 4.13畢孚自動化設備貿易（上海）有限公司2020 年 10 月前言TwinCAT3 是基于 PC 的控制軟件并且它開啟了一個新的時代，是倍福公司歷史上又一個里程碑。特別是在高效的工程領域中 TwinCAT3 將模塊化思想以及其靈活的軟件架構，融入到整個平臺。幾乎每一種控制應用程序都能在 TwinCAT3 中實現。從印刷設備、木工設備、塑料機械或門窗設備、風力發電機和實驗臺，亦或是樓宇，諸如劇院，以及運動場，一切都可以通過 TwinCAT3 實現自動化。用戶可以選擇不同的編程語言來實現這些應用。除了經典的 PLC 編程語言的IEC 61131-3，用戶現在也可以用高級語言 C 或 C++，以及 MATLAB?/ Simulink?。整合了運動功能從而簡化了工程項目，以及全新的安全應用編輯更加人性化。這些以及更多的特性都證明了為什么 TwinCAT3 也名為擴展的自動化。本書針對任何想要學習倍福 TwinCAT3 軟件如何實現基于 PC 控制編程的讀者，閱讀本書需要預先具備 IEC61131-3，C/C++或 MATLAB?/ Simulink?中至少一種編程語言的知識。本書內容的架構安排如下：第一章介紹 TwinCAT3 軟件架構，如何選擇合適的 Visual Studio，以及如何安裝幫助系統。第二章介紹了 TwinCAT3 試用版授權以及完整版授權激活方式，同時介紹了兩種全新硬件授權設備的介紹和使用。第三章介紹了 TwinCAT3 中如何掃描硬件，以及虛擬層和物理層直接的連接如何實現。第四章圍繞 IEC61131-3 的概念展開了說明，講述了 IEC61131-3 標準的核心概念，語法以及 IEC61131-3 新標準擴充的部分。第五章介紹如何創建一個 TwinCAT3 項目，并且選擇 ST（結構文本）語言進行簡單編程，調用功能塊，在線檢測與調試的過程。第六章介紹如何選擇 PLC 中自帶的 HMI 功能編輯一個完整的界面，并且實現全屏顯示，用戶管理，網頁瀏覽等功能。第七章全面介紹 TwinCAT3 中 Measurement 功能的使用，包括如何創建一個
標簽： twincat
上傳時間： 2021-12-17
上傳用戶：shjgzh
高通(Qualcomm)藍牙芯片QCC5151_硬件設計詳細指導書（官方內部培訓手冊）共52頁其內容是針對硬件設計、部分重要元器件選擇(ESD，Filter）及走線注意事項的詳細說明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天線 走線的注意事項)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 QSPIinterface 8 USB interfaces 8.1 USB device port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection
上傳時間： 2022-01-24
上傳用戶：XuVshu
Agilent 34401A Service Guide.pdfIEC Measurement Category II includes electrical devices connected to mains at an outlet on a branch circuit. Such devices include most small appliances, test equipment, and other devices that plug into a branch outlet or socket. The 34401A may be used to make measurements with the HI and LO inputs connected to mains in such devices, or to the branch outlet itself (up to 300 VAC). However, the 34401A may not be used with its HI and LO inputs connected to mains in permanently installed electrical devices such as the main circuit-breaker panel, sub-panel disconnect boxes, or permanently wired motors. Such devices and circuits are subject to overvoltages that may exceed the protection limits of the 34401A. Note: Voltages above 300 VAC may be measured only in circuits that are isolated from mains. However, transient overvoltages are also present on circuits that are isolated from mains. The Agilent 34401A are designed to safely withstand occasional transient overvoltages up to 2500 Vpk. Do not use this equipment to measure circuits where transient overvoltages could exceed this level. Additional Notices Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC This product complies with the WEEE Directive (2002/96/EC) marking requirement. The affixed product label (see below) indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product is classified as a "Monitoring and Control instrumentation" product. Do not dispose in domestic household waste. To return unwanted products, contact your local Agilent office, or see www.agilent.com/environment/product for more information. Agilent 34138A Test Lead Set The Agilent 34401A is compatible with the Agilent 34138A Test Lead Set described below. Test Lead Ratings Test Leads - 1000V, 15A Fine Tip Probe Attachments - 300V, 3A Mini Grabber Attachment - 300V, 3A SMT Grabber Attachments - 300V, 3A Operation The Fine Tip, Mini Grabber, and SMT Grabber attachments plug onto the probe end of the Test Leads. Maintenance If any portion of the Test Lead Set is worn or damaged, do not use. Replace with a new Agilent 3413
標簽： agilent
上傳時間： 2022-02-20
上傳用戶：
SCB10H series pressure elements are high performance absolute pressure sensors. The sensors are based on Murata's proven capacitive 3D-MEMS technology. They enable exceptional possibility for OEM customers to integrate pressure measurement function in an optimal way into their products. SCB10H series elements can be designed to match the application specific pressure range. It is a bare capacitive sensor element that enables optimized application specific package and electronics design.
標簽： 傳感器
上傳時間： 2022-03-03
上傳用戶：
設計了農業溫濕度智能控制系統,該系統采用DHT11溫濕度傳感器作為溫濕度采集模塊,單片機選用AT89C52代替并調用Virtual terminal模擬串口通信,LCD1604液晶顯示器實時顯示溫濕度,實現了溫濕度的測量、顯示,可自動控制加熱、降溫、加濕、通風,實現溫濕度控制以及超限報警處理,并利用Proteus與Keil進行實際電路的仿真。試驗表明,該系統實現了可靠的溫濕度監控。We described the design of an intelligent control system of agriculture temperature and humidity.The system uses DHT11 temperature and humidity sensor as the temperature and humidity acquisition module.The SCM adopts AT89C52 to replace and call the virtual terminal for simulating serial communication.LCD1604 displays temperature and humidity in real time,which implements the measurement and display of temperature and humidity.The system is able to automatically control heating,cooling,humidification and ventilation,to achieve temperature and humidity control and over-limit alarm processing.The system also uses Proteus and Keil for actual circuit simulation.The experiment shows that the system is capable of reliable temperature and humidity monitoring.
上傳時間： 2022-03-26
上傳用戶：aben
