Just what is a regular expression, anyway? Take the tutorial to get the long answer. The short answer is that a regular expression is a compact way of describing complex patterns in texts. You can use them to search for patterns and, once found, to modify the patterns in complex ways. You can also use them to launch programmatic actions that depend on patterns. A tongue-in-cheek comment by programmers is worth thinking about: "Sometimes you have a programming problem and it seems like the best solution is to use regular expressions now you have two problems." Regular expressions are amazingly powerful and deeply expressive. That is the very reason writing them is just as error-prone as writing any other complex programming code. It is always better to solve a genuinely simple problem in a simple way when you go beyond simple, think about regular expressions. Tutorial: Using regular expressions
标签： expression the tutorial regular
上传时间： 2013-12-19
上传用户：sardinescn
Real-Time Digital Signal Processing Implementations, Applications, and Experiments with the TMS320C55x John Wiley & Sons, Inc. 2001 By Sen M. Kuo and Bob H. Lee 4.6.1 Experiment 4A - Twiddle Factor Generation 4.6.2 Experiment 4B - Complex Data Operation 4.6.3 IExperiment 4C - mplementation of DFT 4.6.4 Experiment 4D - Experiment Using Assembly Routines
标签： Implementations Applications Experiments Processing
上传时间： 2016-05-24
上传用户：ikemada
This file contains a selection of VHDL source files which serve to illustrate the diversity and power of the language when used to describe various types of hardware. The examp terms of basic logic gates, to more complex systems, such as a behavioural model of a microprocessor and associated memory. All of the examples can be simulated using any synthesised using current synthesis tools.
标签： illustrate diversity selection contains
上传时间： 2016-06-06
上传用户：yimoney
使用fft实现的快速卷积，对于很多情况均有用处，使用complex模板类实现
上传时间： 2013-12-03
上传用户：c12228
ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noise variance ％ Mt - number of Tx antennas ％ Mr - number of Rx antennas ％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column ％ is the value of the antenna outputs at a single time instance) ％ H - frequency selective channel - represented in block-Toeplitz form for MIMO transmission ％ N - number of symbols transmitted in OFDM frame ％ ％ outputs: ％ y - vector of channel outputs (matrix for MIMO again, just like x matrix) ％ create noise vector sequence (each row is a different antenna, each column is a ％ different time index) note: noise is spatially and temporally white
标签： transmission simulator Channel inputs
上传时间： 2016-07-22
上传用户：kelimu
This Source-Navigator, an IDE for C/C++/Fortran/Java/Tcl/PHP/Python and a host of other languages. Source-Navigator includes powerful source code comprehension features that help a developer understand complex relationships between elements of a program s source.
标签： Source-Navigator languages Fortran Python
上传时间： 2013-12-22
上传用户：yyyyyyyyyy
Abstract—Wireless networks in combination with image sensors open up a multitude of previously unthinkable sensing applications. Capable tools and testbeds for these wireless image sensor networks can greatly accelerate development of complex, yet efficient algorithms that meet application requirements. In this paper, we introduce WiSNAP, a Matlab-based application development platform intended for wireless image sensor networks. It allows researchers and developers of such networks to investigate, design, and evaluate algorithms and applications using real target hardware. WiSNAP offers standardized and easy-to-use Application Program Interfaces (APIs) to control image sensors and wireless motes, which do not require detailed knowledge of the target hardware. Nonetheless, its open system architecture enables support of virtually any kind of sensor or wireless mote. Application examples are presented to illustrate the usage of WiSNAP as a powerful development tool.
标签： combination previously multitude Abstract
上传时间： 2013-12-03
上传用户：D&L37
矩阵类 简单的矩阵类的编写，其中包含Rationalnumber类，Complex类的编写
上传时间： 2016-08-13
上传用户：sy_jiadeyi
FFTW, a collection of fast C routines to compute the Discrete Fourier Transform in one or more dimensions.The fftw/ directory contains the source code for the complex transforms, and the rfftw/ directory contains the source code for the real transforms.
标签： collection Transform Discrete routines
上传时间： 2016-08-17
上传用户：yoleeson
This book provides a complete intermediate-level discussion of microcontroller programming using the C programming language. It covers both the adaptations to C necessary for targeting an embedded environment, and the common components of a successful development project. C is the language of choice for programming larger microcontrollers (MCU), those based on 32-bit cores. These parts are often derived from their general-purpose counterparts, and are both as complex and feature-rich. As a result, C (and C++) compilers are necessary and readily available for these MCUs. 是初学入们，嵌入式的好教材！@简单易懂
标签： intermediate-level microcontroller programming discussion
上传时间： 2013-12-18
上传用户：lo25643
