SPLASH is a c++ class library that implements many of the Perl constructs and data types, including extensive regex regular Expression pattern matching. For those not familiar with Perl, it is an excellent scripting language by Larry Wall and is available for most platforms. This Class library provides List, String, Regular Expression, and text manipulation handling capabilities based on those provided in Perl
标签： implements constructs including library
上传时间： 2013-12-07
上传用户：1583060504
一个命令行运算器源代码 用C++写的命令行运算器，支持加、减、乘、除、乘方和小括号（可嵌套），乘方的符号是^^，因为在WINDOWS的命令行模式下^是一个连接符。 用法：cal Expression Expression = Expression op Expression Expression = (Expression) op = + | - | * | / | ^^
上传时间： 2013-12-24
上传用户：gxmm
Knowledge of the process noise covariance matrix is essential for the application of Kalman filtering. However, it is usually a difficult task to obtain an explicit Expression of for large time varying systems. This paper looks at an adaptive Kalman filter method for dynamic harmonic state estimation and harmonic injection tracking.
标签： application covariance Knowledge essential
上传时间： 2014-01-19
上传用户：litianchu
Text processing often involves matching text against a pattern. Although Java s character and assorted string classes offerlow- levelpattern- matching support, that support commonly leads to complex code. To help you write simplerpattern- matching code, Java provides regular Expressions. After introducing you to terminology and thejava.util. regex package, Jeff Friesen explores many regular Expression constructs supported by that package s Pattern class. Then he examines Pattern s methods and the additionaljava.util. regex classes. In conclusion, he presents a practical application of regular Expressions.
标签： processing character Although involves
上传时间： 2014-01-19
上传用户：爱死爱死
UC Library Extensions UnderC comes with a pocket implementation of the standard C++ libraries, which is a reasonably faithful subset. This documentation describes those UnderC functions and classes which are not part of the C++ standard. UC Library Builtin functions: Most of these are standard C functions, but there are a few unique to the UnderC system which give you runtime access to the compiler. You may evaluate Expressions, execute commands, compile code, etc. * Expands the text in expr using the UnderC preprocessor, putting the result into buff. void uc_macro_subst(const char* expr, char* buff, int buffsize) * Executes a UC #-command, like #l or #help. uc_cmd() expects the name of the command, _without_ the hash, e.g. uc_cmd("l fred.cpp") or uc_cmd("help"). void uc_cmd(const char* cmd) * Evaluates any C++ Expression or statement will return non-zero if unsuccessful.
标签： implementation Extensions libraries standard
上传时间： 2013-12-14
上传用户：leehom61
Implement the step 2 of two-level logic minimization. Our goal is to find the minimum (exact minimum) sum-of-products Expression for a given function.
标签： minimization Implement the two-level
上传时间： 2014-01-09
上传用户：无聊来刷下
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form Expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.
标签： frequency-offset estimation quadrature amplitude
上传时间： 2014-01-22
上传用户：牛布牛
This paper examines the asymptotic (large sample) performance of a family of non-data aided feedforward (NDA FF) nonlinear least-squares (NLS) type carrier frequency estimators for burst-mode phase shift keying (PSK) modulations transmitted through AWGN and flat Ricean-fading channels. The asymptotic performance of these estimators is established in closed-form Expression and compared with the modified Cram`er-Rao bound (MCRB). A best linear unbiased estimator (BLUE), which exhibits the lowest asymptotic variance within the family of NDA FF NLS-type estimators, is also proposed.
标签： performance asymptotic examines non-data
上传时间： 2015-12-30
上传用户：225588
表达式类型的实现: 1、 一个表达式和一颗二叉树之间，存在着自然的对应关系。 2、 假设算术表达式Expression内可以含有变量（a～z）、常量（0～9）和二元运算符（＋，－，*，/，^）。实现一下操作。 （1） ReadExpr(E)——以字符序列的形式输入语法正确的前缀表示式并构造表达式E。 （2） WritrExpr(E)——用带括弧的中缀表示式输出表达式E。 （3） Assign(V,c)——实现对变量V的赋值(V=c),变量的初值为0。 （4） Value(E)——对算术表达式E求值。 （5） CompoundExpr(P,E1,E2)——构造一个新的复合表达式（E1）P (E2)。
上传时间： 2013-12-09
上传用户：luke5347
本计算器实现了如下两个功能： 1、windows自带计算器的键盘输入加减乘除，目前没有连续运算功能操作：用户用键盘或者鼠标分别输入‘1’，‘＋’，‘2’，按‘＝’ 文本框显示运算结果‘3’。 2、表达式运算功能，目前只支持整数运算。操作：选择菜单Option->Expression，在文本框用键盘输入表达式如‘12/2+(4*5/4)*6’，按计算器上‘＝’，文本框显示运算结果 ‘12/2+(4*5/4)*6=36’。 3、换肤功能 提供了4种skin，可以自由切换。操作：菜单Skin->Load Skin,选择skin文件。
上传时间： 2016-06-30
上传用户：凤临西北
