Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increasingly important. The compressed signalprocessing range mandates a commensurate reductionin reference noise to maintain resolution. Noise ultimatelytranslates into quantization uncertainty in A to D converters,introducing jitter in applications such as scales, inertialnavigation systems, infrared thermography, DVMs andmedical imaging apparatus. A new low voltage reference,the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT.Figure 1 lists salient specifi cations in tabular form. Accuracyand temperature coeffi cient are characteristic ofhigh grade, low voltage references. 0.1Hz to 10Hz noise,particularly noteworthy, is unequalled by any low voltageelectronic reference.
上傳時間： 2013-10-30
上傳用戶：wxhwjf
This application note discusses a variety of approaches for interfacing analog signals to 5V powered systems. Synthesizing a "rail-to-rail" op amp and scaling techniques for A/D converters are covered. A voltage-to-frequency converter, applicable where high resolution is required, is also presented.
上傳時間： 2013-10-12
上傳用戶：181992417
C# Network Programming by Richard Blum ISBN:0782141765 Sybex ?2003 (647 pages) This book helps newcomers get started with a look at the basics of network programming as they relate to C#, including the language抯 network classes, the Winsock interface, and DNS resolution.
標簽： Programming 0782141765 Network Richard
上傳時間： 2014-01-06
上傳用戶：WMC_geophy
pb 制作sql2000后臺，簡單的足球俱樂部管理軟件，系數據庫的課程設計，拿來大家分享，不足之處，多多指教，用戶名:root密碼:super
上傳時間： 2015-05-10
上傳用戶：qiao8960
This a program to implement the so-called "dancing link" which is introduced in Knuth s paper. This is really a super acrobatic and I am sure that not many programmers can understand the algorithms.
標簽： This introduced implement so-called
上傳時間： 2013-12-11
上傳用戶：784533221
Windows下讀寫硬件的工具. RW - Read & Write utility, for hardware engineers, firmware (BIOS) engineers, driver developers, QA engineers, performance test engineers, diagnostic engineers, etc., This utility access almost all the computer hardware, including PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, Super I/O, Clock Generator, DIMM SPD, SMBus Device, CPU MSR Registers, ATA/ATAPI Identify Data, ACPI Tables Dump (include AML decode), Embedded Controller, USB Information and LPT Remote Access. And also an Command Window is provided to access hardware manually.
標簽： engineers firmware hardware Windows
上傳時間： 2015-07-01
上傳用戶：xc216
This example application is a collection of Flash Lite do s and don ts from the usability point of view. The application contains real examples and animations of static examples that help you to see problematic issues in real life on a Nokia device. The application is optimized for devices with the resolution 170 x 208 pixels used in portrait mode. This example application is closely related to the document Flash Lite: Visual Guide, and it is highly recommended to read the document before going through this example.
標簽： application collection usability example
上傳時間： 2015-10-05
上傳用戶：trepb001
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
Jpeg2000編解碼器，附VC、Delphi等常用編程語言的使用例程 J2K-Codec ver 1.9 === === === === === === === === ===== Make your graphics look better with an easy-to-use JPEG 2000 decoding component. J2K-Codec can help game developers, screensaver creators and many others to improve their products--to achieve better image quality and reduce installation package size. The new image compression standard based on wavelet technology has many interesting features not available in the old JPEG, such as alpha-channel and varied resolution levels.
上傳時間： 2013-12-27
上傳用戶：kytqcool
Uniform random number generators by Agner Fog, 2001 - 2007 randomc.zip contains a C++ class library of uniform random number generators of good quality. The random number generators found in standard libraries are often of a poor quality, insufficient for large Monte Carlo calculations. This C++ implementation provides random number generators of a much better quality: Better randomness, higher resolution, and longer cycle lengths. The same random number generators are available as libraries coded in assembly language for higher speed. These libraries can be linked into projects coded in other programming languages under Windows, Linux, BSD, etc. The library files are available in the archive asmlib.zip. Non-uniform random number generators are provided in stocc.zip.
標簽： generators contains Uniform randomc
上傳時間： 2014-12-01
上傳用戶：royzhangsz
