Rotating shafts experience a an elliptical motion called whirl. It is important to decompose this motion into a forward and backward whil orbits. The current function makes use of two sensors to generate a bi-directional spectrogram. The method can be extended to any time-frequency distribution ％ ％ compute the forward/backward Campbell/specgtrogram ％ ％ INPUT: ％ y (n x 2) each column is measured from a different sensor ％ /////// ％ __ ％ |s1| y(:,1) ％ |__| ％ __ ％ / \ ________|/ ％ | | | s2 |/ y(:,2) ％ \____/ --------|/ ％ ％ Fs Sampling frequnecy ％ ％ OUTPUT: ％ B spectrogram/Campbel diagram ％ x x-axis coordinate vector (time or Speed) ％ y y-axis coordinate vector (frequency [Hz])
标签： experience elliptical decompose important
上传时间： 2015-06-23
上传用户：372825274
-- Booth Multiplier -- This file contains all the entity-architectures for a complete -- k-bit x k-bit Booth multiplier. -- the design makes use of the new shift operators available in the VHDL-93 std -- this design passes the Synplify synthesis check -- download from: www.fpga.com.cn & www.pld.com.cn
标签： entity-architectures Multiplier contains complete
上传时间： 2015-07-02
上传用户：2467478207
波形发生器，带TESTBENCH， 多平台 -- the design makes use of the new shift operators available in the VHDL-93 std -- this design passes the Synplify synthesis check -- download from: www.fpga.com.cn & www.pld.com.cn
标签： 波形发生器
上传时间： 2014-01-20
上传用户：familiarsmile
THIS is really two books in one: a tutorial and a reference manual for JDBC, the application programming interface that makes it possible for programmers to access databases from Java. The goal is to be useful to a wide range of readers, from database novices to database experts. Therefore, we have arranged the book so that information needed only by experts is separated out from the basic material. We hope that driver developers as well as application programmers and MIS administrators will find what they need. Because different sections are aimed at different audiences, we expect that few people will read every page. We have sometimes duplicated explanations in an effort to make reading easier for those who do not read all sections. This book will be most helpful to those who have some knowledge of the Java programming language and SQL (Structured Query Language), but one doesn t need to be an expert in either to understand the basic concepts presented here.
标签： application reference tutorial program
上传时间： 2015-08-04
上传用户：zhengzg
The extraordinary growth of the World Wide Web has been fueled by the ability it gives authors to easily and cheaply distribute electronic documents to an international audience. As Web documents have become larger and more complex, however, Web content providers have begun to experience the limitations of a medium that does not provide the extensibility, structure, and data checking needed for large-scale commercial publishing. The ability of Java applets to embed powerful data manipulation capabilities in Web clients makes even clearer the limitations of current methods for the transmittal of document data.
标签： extraordinary the ability authors
上传时间： 2015-08-11
上传用户：ANRAN
ARM7硬件说明与开发 The ARM7 is a low-power, general purpose 32-bit RISC microprocessor macrocell for use in application or customer-specific integrated circuts (ASICs or CSICs). Its simple, elegant and fully static design is particularly suitable for cost and power-sensitive applications. The ARM7’s small die size makes it ideal for integrating into a larger custom chip that could also contain RAM, ROM, logic, DSP and other cells.
标签： ARM7 microprocessor low-power macrocell
上传时间： 2013-12-17
上传用户：3到15
A Java Framework for connecting to and exchanging data from GPS units to J2ME Mobile Devices. Serial and Bluetooth connections to GPS devices. Support for NMEA-0183 GPS Standard. An Observer-Design Pattern makes the library extendable. Based on GPSlib4j.
标签： connecting exchanging Framework Devices
上传时间： 2014-12-05
上传用户：yzhl1988
ZIP压缩、解压缩算法库，完全C++实现，支持多种平台。下面是英文描述： This library adds zip compression and decompression functionality to your program, allowing you to create and modify ZIP files in the compatible way with WinZip, PKZIP and other popular archivers. Its easy and practical interface makes the library suitable for the beginners as well as for the advanced users.
上传时间： 2013-11-28
上传用户：hopy
"poco" (Spanish & Italian for "little") OLAP provides a web-based, crosstab reporting tool for your datawarehouse. While it s not an OLAP server or full fledged data mining solution, pocOLAP makes your data easy to use and understand ... for free!
标签： for web-based reporting crosstab
上传时间： 2013-12-17
上传用户：wl9454
The aim of this application note is to show to scan the 4x4 matrix keypad multiplexed with a four 7-segment display. The software attached to this application note scans the pressed key and displays it on the multiplexed 7- segment LEDs. This application note makes obvious Interrupt capability of the STR710 device to offer a better key scan .
标签： application multiplexed matrix keypad
上传时间： 2015-09-13
上传用户：thuyenvinh
