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(biāo)簽： receivers Signals GNSS Weak for
上傳時間： 2020-06-09
上傳用戶：shancjb
Universival Asychronous receiver/Transmitter（通用異步串行口），UART 是一種較為通用的數(shù)據(jù)傳輸?shù)姆椒ǎ碨tart Bit＋Data＋Check＋StopBit），而COM 口中Rx、Tx 的數(shù)據(jù)格式即為UART。UART 和RS232是兩種異步數(shù)據(jù)傳輸標(biāo)準(zhǔn).計算機(jī)中的COM1和COM2都是RS232串行通信標(biāo)準(zhǔn)接口。當(dāng)Uart 接口連到PC 機(jī)上時，需要接RS232電平轉(zhuǎn)換電路。
上傳時間： 2021-11-30
上傳用戶：
ADC模數(shù)轉(zhuǎn)換器件Altium Designer AD原理圖庫元件庫SV text has been written to file : 4.4 - ADC模數(shù)轉(zhuǎn)換器件.csvLibrary Component Count : 29Name Description----------------------------------------------------------------------------------------------------ADC0800 National 8-Bit Analog to Digital ConverterADC0809 ADC0831 ADCADC0832 ADC8 Generic 8-Bit A/D ConverterCLC532 High-Speed 2:1 Analog MultiplexerCS5511 National 16-Bit Analog to Digital ConverterDAC8 Generic 8-Bit D/A ConverterEL1501 Differential line Driver/receiverEL2082 Current-Mode MultiplierEL4083 Current Mode Four Quadrant MultiplierEL4089 DC Restored Video AmplifierEL4094 Video Gain Control/FaderEL4095 Video Gain Contol/Fader/MultiplexerICL7106 LMC6953_NSC PCI Local Bus Power SupervisorMAX4147 300MHz, Low-Power, High-Output-Current, Differential Line DriverMAX4158 350MHz 2-Channel Video Multiplexer-AmplifierMAX4159 350MHz 2-Channel Video Multiplexer-AmplifierMAX4258 250MHz, 2-Channel Video Multiplexer-AmplifierMAX4259 250MHz 2-Channel Video Multiplexer-AmplifierMAX951 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMAX952 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMC1496 Balanced Modulator/DemodulatorPLL100k Generic Phase Locked LoopPLL10k Generic Phase Locked LoopPLL5k Generic Phase Locked LoopPLLx Generic Phase Locked Loop水位計
標(biāo)簽： adc 模數(shù)轉(zhuǎn)換 altium designer
上傳時間： 2022-03-13
上傳用戶：
近距電能傳輸——高效安全近距電能傳輸一般基于電磁感應(yīng)原理進(jìn)行。在此技術(shù)基礎(chǔ)上，當(dāng)接收器鄰近發(fā)射器時才會進(jìn)行電能傳輸。電磁感應(yīng)技術(shù)的歷史長達(dá)百年，多年米一直應(yīng)用于各類電子產(chǎn)品中—如此普及全因其簡單、高效以及安全技術(shù)概覽以下將為你簡要介紹無線電能傳輸技術(shù)。System Overview(Communication)receiver sends messagesTo provide control information to the transmitterBy load modulation on the power signaTransmitter receives messagesTo receive control information frorn the recelverBy de-modulation of the reflected loadPower Pick Up( receiver)Secondary coil (L Serial resonance capacitor (C) for efficient power transfer Parallel resonance capacitor(C, )for detection purposes Rectifier: full bridge(diode, or switched)+ capacitor Output switch for(dis)connecting the loadreceiver modulates load by Switching modulation resistor(R,n),or Switching modulation capacitor(Ca)Transmitter de-modulates reflected load by Sensing pnmary coil curent (p)and/o Sensing primary coil voltage (V,
上傳時間： 2022-03-31
上傳用戶：
基于TMS320F28335的超聲波流量計硬件原理圖+軟件源碼本文以TMS320F28335 處理器為核心，設(shè)計一種用于管道流量測量的超聲波流量計。系統(tǒng)硬件由核心板，超聲波發(fā)射和接收電路，切換電路，超聲換能器，基于ADS805 的高速信號采集電路，人機(jī)交互以及電源等模塊構(gòu)成。采用時差法進(jìn)行管道流量測量，時差測量采用SCOT 加權(quán)的廣義互相關(guān)時延估計算法。本論文設(shè)計的超聲波流量計具有測量速度快、準(zhǔn)確性好、成本低等優(yōu)點(diǎn)。關(guān)鍵字：C2000，超聲波，流量，廣義互相關(guān)算法AbstractA kind of ultrasonic flowmeter using for the pipe flow measurement is designed based onTMS320F28335 in this paper. The system hardware consists of the following parts: the core board,ultrasonic signal transmitter and receiver circuits, switch circuit, ultrasonic transducer, signalacquisition circuit based on ADS805, human-computer interaction module and power supplymodule, etc. The system use the method of time difference for pipeline flow measurement and thetime difference is calculated by the time-delay algorithm of SCOT weighted generalizedcross-correlation. The ultrasonic flowmeter has the features of high testing speed, high precisionand low cost, etc.Keywords: C2000,Ultrasonic, Flow, Generalized Cross-Correlation Algorithm
標(biāo)簽： tms320f28335 超聲波流量計
上傳時間： 2022-05-06
上傳用戶：
CH7525 is a low-cost, low-power semiconductor device that translates the DisplayPort signal to HDMI/DVI. This innovative DisplayPort receiver with an integrated HDMI Transmitter is specially designed to target the notebook/ultrabook, tablet device and PC market segments. Through the CH7525’s advanced decoding / encoding algorithm, the input DisplayPort high-speed serialized multimedia data can be seamlessly converted to HDMI/DVI output.
上傳時間： 2022-06-02
上傳用戶：
ATS2819/ATS2819P標(biāo)準(zhǔn)應(yīng)用方案主要分為以下功能模塊：Power Supply，BlueTooth，Audio Input/Output（包括codec、I2C、SPDIF），F(xiàn)M receiver，disaplay（LED&LCD），USB，SPI NOR Flash Memory，SD/MMC/MS Card等。1.2原理圖設(shè)計總體原則1原理圖設(shè)計需要按照方案規(guī)格的要求實(shí)現(xiàn)各項(xiàng)硬件功能，盡量避免功能模塊相互間的資源沖突。如果存在I/O復(fù)用，接收復(fù)用等情況，除了需注意檢查I/O上電狀態(tài)，接口時序等，還需要注意復(fù)用的SIO工作頻率與工作電壓域是否符合要求(如WIO)，確保功能設(shè)計正確實(shí)現(xiàn)。2原理圖設(shè)計要求性能達(dá)到要求。如穩(wěn)定性，啟動電壓，功耗，ESD，EMI等。要注意檢查模塊電源開關(guān)狀態(tài)，選擇的原件標(biāo)稱及精度、材質(zhì)，接口保護(hù)元件和EMI濾波器等。3系統(tǒng)時鐘26MHZ，要求CL為7~9PF，精度為+-10PPM。這樣才能保證系統(tǒng)能正常工作。4當(dāng)設(shè)計PCB受限于模具大小時，各個模塊無法保證均能得到最優(yōu)的布局布線(如濾波電容要求靠近IC、走線上要求盡量少的過孔與盡可能短的走線)。因?yàn)樵诖私o出一個模塊優(yōu)先級以供設(shè)計人員參考，從而提高方案設(shè)計的效率，增加一版work的可行性。將優(yōu)先級以阿拉伯?dāng)?shù)據(jù)排列
標(biāo)簽： ats2819 tws 藍(lán)牙音箱
上傳時間： 2022-06-07
上傳用戶：
Introduction The Sil9135/Sil9135A HDMI receiver with Enhanced Audio and Deep Color Outputs is a second-generation dual-input High Definition Multimedia Interface(HDMI)receiver. It is software-compatible with the Sil9133receiver, but adds audio support for DTS-HD and Dolby TrueHD. Digital televisions that can display 10-or 12-bit color depth can now provide the highest quality protected digital audio and video over a single cable. The Sil9135and Sil9135A devices, which are functionally identical, can receive Deep Color video up to 12-bit,1080p @60Hz. Backward compatibility with the DVI 1.0specification allows HDMI systems to connect to existing DVI 1.0 hosts, such as HD set-top boxes and PCs. Silicon Image HDMI receivers use the latest generation Transition Minimized Differential Signaling(TMDS) core technology that runs at 25-225 MHz.The chip comes pre-programmed with High-bandwidth?
上傳時間： 2022-06-25
上傳用戶：
eeworm.com VIP專區(qū) 單片機(jī)源碼系列 67資源包含以下內(nèi)容：1. P89LPC912單片機(jī)數(shù)據(jù)手冊.pdf2. P89LPC932 Flash單片機(jī)使用指南.pdf3. PC MCU串行通信的應(yīng)用設(shè)計方法.pdf4. RSA加解密系統(tǒng)及其單芯片實(shí)現(xiàn).pdf5. PCF8563實(shí)時時鐘高精度調(diào)整方法.pdf6. PAM2862 1A LED Driver with Int.pdf7. AN070219 PCF8563中斷輸出功能.pdf8. SJA1000 Stand-alone CAN contro.pdf9. PCA82C250 PCA82C251 CAN Transc.pdf10. SJA1000獨(dú)立的CAN控制器應(yīng)用指南.pdf11. PCA82C250 CAN收發(fā)器應(yīng)用指南.pdf12. SCN2681 SCN68681和SCC2691數(shù)據(jù)通信.pdf13. Philips單片機(jī)P89V51RD2簡介.pdf14. 飛利浦SC16C器件和飛利浦低功耗SC16CxxxB器件之間.pdf15. P89V51RD2單片機(jī)看門狗的使用方法.pdf16. SC16C554 SC16C654 SC16C554B SC.pdf17. P89V51RD2的加密操作.pdf18. SC16C550應(yīng)用實(shí)例.pdf19. 如何在C語言中調(diào)用P89V51RD2的IAP功能.pdf20. P89LPC901實(shí)現(xiàn)ADC DAC及UART通信.pdf21. P89LPC900在高精度模數(shù)轉(zhuǎn)換場合的應(yīng)用.pdf22. P89C51Rx2xx硬件進(jìn)入ISP的方法.pdf23. Study-3 51單片機(jī)開發(fā)板原理圖.pdf24. 基于P87LPC760的DALI從機(jī).pdf25. PCA9515D PCA9515DP I2C中繼器.pdf26. PCA9534 8bit I2C bus and SMBus low power IO port with interru.pdf27. LPC900 Flash單片機(jī)鍵盤中斷.pdf28. PCA9516 5channel I2C hub.pdf29. PCA9535 PCA9535C 16bit I2C bus.pdf30. LPC700系列單片機(jī)看門狗復(fù)位應(yīng)注意的問題.pdf31. PCA9516 I2C中繼器.pdf32. PCA9536 4bit I2C bus and SMBus.pdf33. 內(nèi)置Reset WDT電路的串行E2PROM原理及應(yīng)用設(shè)計.pdf34. PCA9517 Level translating I2C-.pdf35. PCA9537 4bit I2C bus and SMBus.pdf36. X-tal oscillators on 8-bit mic.pdf37. PCA9517低電壓I2C總線中繼器.pdf38. PCA9538 8bit I2C bus and SMBus.pdf39. 8051系列單片機(jī)應(yīng)用系統(tǒng)的PROTEUS仿真設(shè)計.doc40. PCA9518 Expandable 5channel I2.pdf41. PCA9539 PCA9539R 16-bit I2C-bu.pdf42. 基于單總線技術(shù)蓄電池監(jiān)控系統(tǒng)設(shè)計.pdf43. PCA9518A I2C 中繼器集線器與擴(kuò)展器.pdf44. PCA9540B 2channel I2C bus mult.pdf45. 基于AT89C51應(yīng)用系統(tǒng)的串行通信設(shè)計.pdf46. PCA9519 4channel level transla.pdf47. PCA9541 2 to 1 I2C-bus master.pdf48. PCA9519 4通道I2C-bus SMBus 中繼器.pdf49. PCA9544A 4channel I2C multiple.pdf50. PCA9542A 2channel I2C bus mult.pdf51. PCA9544A I2C多路復(fù)用器.pdf52. PCA9544中文資料.pdf53. PCA9549 Octal bus switch with.pdf54. PCA9545A/PCA9545B/PCA9545C I2C.pdf55. PCA9549D/PCA9549PW/PCA9549B I2.pdf56. PCA9546A 4 channel I2C bus swi.pdf57. PCA9555 16bit I2C-bus and SMBu.pdf58. PCA9546A I2C多路復(fù)用器和開關(guān).pdf59. PCA9670 Remote 8-bit IO expand.pdf60. PCA9547 8 channel I2C bus mult.pdf61. PCA9671 Remote 16-bit IO expan.pdf62. PCA9547D/PW/BS I2C多路復(fù)用器和開關(guān).pdf63. PCA9672 Remote 8-bit IO expand.pdf64. PCA9548中文資料.pdf65. PCA9673 Remote 16-bit IO expan.pdf66. PCA9548A 8 channel I2C bus swi.pdf67. PCA9674 PCA9674A Remote 8-bit.pdf68. PCA9548AB I2C多路復(fù)用器和開關(guān).pdf69. 8-bit I2C-bus and SMBus IO port with reset.pdf70. PCA9698芯片的應(yīng)用.pdf71. PCA9698 I2C擴(kuò)展芯片.pdf72. PCF2123的中斷輸出功能.pdf73. TI新推29款Cortex-M3內(nèi)核Stelleris AR.pdf74. 端口RS-232工業(yè)PC104多串口卡.pdf75. TIPC1000帶視頻輸入接口的嵌入式觸摸平板電腦.pdf76. 串口調(diào)試助手用戶手冊.pdf77. PCM8416AS自動校準(zhǔn)功能智能型PC104高分辨率多功能.pdf78. TJA1042高速CAN 收發(fā)器.pdf79. COS-II調(diào)試插件.pdf80. PROFIBUS技術(shù)和應(yīng)用.pdf81. TJA1042 High-speed CAN transce.pdf82. TKStudio IDE集成開發(fā)環(huán)境升級記錄.pdf83. Replacement of NXP PCA9518 wit.pdf84. TJA1051高速CAN 收發(fā)器.pdf85. 1A SIMPLE STEP-DOWN SWITCHING.pdf86. RSM232隔離RS-232收發(fā)器.pdf87. TJA1051 High-speed CAN transce.pdf88. DUAL RS-232 DRIVER receiver WI.pdf89. RSM-4055 8通道隔離數(shù)字量輸入輸出模塊.pdf90. 外部工具用戶手冊.pdf91. XGate COP10 CANopen 嵌入式通信模塊.pdf92. RSM-6505 5通道熱電偶測量模塊.pdf93. 十六進(jìn)制編輯器.pdf94. ZigBee模塊ZICM2410應(yīng)用開發(fā)指南.pdf95. RSM-65055通道熱電偶測溫模塊.pdf96. 圖片字模助手.pdf97. ZY00xxGD-10W交直流兩用全電壓輸入AC-DC電源模.pdf98. TKStudio下SDCC_8051用戶使用手冊.pdf99. 定壓輸出隔離穩(wěn)壓單輸出系列.pdf100. ZY00xxGD-15W交直流兩用全電壓輸入AC-DC電源模.pdf
標(biāo)簽： 電子技術(shù)基礎(chǔ) 模擬電子技術(shù) 電子教案
上傳時間： 2013-04-15
上傳用戶：eeworm
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1
