The idea behind differential GPS is to remove as much errors as possible from the range measurements by establishing these errors at a reference site. In its most simple setup, a GPS receiver is located at a well surveyed position and its (pseudo) range measurements are compared with the actual calculated range from this receiver to the SV s. The differences between measured ranges and calculated ranges at the reference receiver are applied as corrections to the ranges measured by other receiver(s) close by.
标签： differential measurements possible behind
上传时间： 2013-12-19
上传用户：zgu489
Lex helps write programs whose control flow is directed by instances of regular expressions in the input stream. It is well suited for editor-script type transformations and for segmenting input in preparation for a parsing routine.
标签： expressions instances directed programs
上传时间： 2016-11-16
上传用户：时代电子小智
Boost provides free peer-reviewed portable C++ source libraries. We emphasize libraries that work well with the C++ Standard Library. Boost libraries are intended to be widely useful, and usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. We aim to establish "existing practice" and provide reference implementations so that Boost libraries are suitable for eventual standardization. Ten Boost libraries are already included in the C++ Standards Committee s Library Technical Report (TR1) as a step toward becoming part of a future C++ Standard. More Boost libraries are proposed for the upcoming TR2. Boost works on almost any modern operating system, including UNIX and Windows variants. Follow the Getting Started Guide to download and install Boost. Popular Linux and Unix distributions such as Fedora, Debian, and NetBSD include pre-built Boost packages. Boost may also already be available on your organization s internal web server.
标签： libraries peer-reviewed emphasize provides
上传时间： 2016-12-05
上传用户：semi1981
MySQL claims to be the world s most popular open source database, and with good reason. It is free, runs on a wide variety of platforms, is relatively simple, easy to configure and performs well even under significant load. By comparison to some other popular database management systems, configuring it is quite simple, but there are still a sufficiently wide variety of security-relevant configuration issues to make securing it a challenge.
标签： database popular claims source
上传时间： 2016-12-13
上传用户：王者A
This document is a "practical guide" to very quickly setup CVS/RCS source code control system. This document has custom shell scripts which are wrappers on top of CVS. These scripts provide an easy user interface for CVS. Several shell scripts are provided to make RCS more easy to use. The information in this document applies to Linux and as well as to all other flavors of Unix liks Solaris, HPUX, AIX, SCO, Sinix, BSD, SCO, etc.. and BeOS.
标签： This practical document control
上传时间： 2014-01-16
上传用户：gxmm
The invention of the compound additive for alkaline PH value of more than 13 strong base will not only be able to prevent soil acidification, can effectively improve the soil acidic, as well as the rich soil of minerals, in the air to absorb the carbon and nitrogen for The use of plants.
标签： invention compound additive alkaline
上传时间： 2013-12-08
上传用户：xauthu
unified configuration interface. small configuration library for programs written in c, can be used for shell scripts as well.
标签： configuration interface programs unified
上传时间： 2017-01-04
上传用户：ynsnjs
Fully revised to cover the latest standards and technologies, XML and Java(TM), Second Edition provides the practical solutions developers need to design powerful and portable Web-based applications. Featuring step-by-step examples, this book focuses on harnessing the power of Java(TM) and XML together to streamline the development process. XML and Java(TM), Second Edition provides new coverage of emerging areas such as document management, databases, messaging, servlets, JDBC, data binding, security, and more. It begins with an overview of XML programming techniques, standard APIs, and tools. Building upon this foundation, the book goes on to cover the latest technologies, including DOM Level 2, SAX2, XSLT, SOAP, WSDL, and UDDI. It explores the role of these major middleware technologies in XML and Java-based Web application development, as well as the limitations and potential pitfalls.
标签： technologies and standards Edition
上传时间： 2014-01-05
上传用户：hj_18
Perl and XML XML is a text-based markup language that has taken the programming world by storm. More powerful than HTML yet less demanding than SGML, XML has proven itself to be flexible and resilient. XML is the perfect tool for formatting documents with even the smallest bit of complexity, from Web pages to legal contracts to books. However, XML has also proven itself to be indispensable for organizing and conveying other sorts of data as well, thus its central role in web services like SOAP and XML-RPC. As the Perl programming language was tailor-
标签： programming text-based XML language
上传时间： 2014-01-07
上传用户：jichenxi0730
this procedure is simulated document management system disk space management, Disk Management, directory management (single-level directory) of a simulation program, as well as university computer courses on operating system design a case, we only reference
标签： management Management procedure simulated
上传时间： 2017-02-05
上传用户：zhuoying119
