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This file contains a C++Builder 4 project called SimplyChaos-X ver 3.1 (SCX31). SCX31 is an encryption tool. I designed it as my graduation paper work. SCX31 is a symmetric stream cipher built on chaos function, one time pad cipher and inspiration from Ground Effect (aviation). The key length can b ...

用fpga实现的DA转换器，有说明和源码，VDHL文件。 A PLD Based Delta-Sigma DAC Delta-Sigma modulation is the simple, yet powerful, technique responsible for the extraordinary performance and low cost of today s audio CD players. The simplest Delta-Sigma DAC consists of a Delta-Sigma modulator and a one ...

linux下用C语言写的聊天程序！/*BUG and NOTE: Not join protect to Shared Memory Segments,example Semaphore Arrays. Not check the parameters validity. When transmit may be error. If the client program no right exit,others cannot know,the service program shouldbe check the client program whether exist t ...

射频卡读写模块的资料，值得学习，发出来与大家共享。采用PHILIPS 公司的非接触技术设计的微型嵌入式非接触式IC卡读写模块。内嵌MF RC500射频基站，用户不必关心射频基站复杂的控制方法，只需要简单地通过选定的UART 或IIC 接口发送命令就可以对卡片进行所有的操作。该读卡模块是专门针对Mifare One读卡器设计的，带有默认 ...

Use this program to decode the Manchester Code of the RFID. Validate the accessibility of detected card. Including a keypad controller, generally a all in one card access reader.

Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve voice performance, has an unusual affect on digital QAM data signals which are transmitted over the same channel. The ...

Peers is a very minimalistic SIP User-Agent. It s a softphone, written in java, and it has been tested on linux and windows. It allows a user to call from one PC to another on a local area network, using SIP/SDP/RTP with Ulaw encoding for voice.

Multirate filters provide a practical approach to designing and implementing finite response (FIR) filters with narrow spectral constraints. By changing the input data rate at one or more intermediate points the filter lengths and computational rates can be greatly reduced when compared to a standar ...

In this paper, we present LOADED, an algorithm for outlier detection in evolving data sets containing both continuous and categorical attributes. LOADED is a tunable algorithm, wherein one can trade off computation for accuracy so that domain-specific response times are achieved. Experimental result ...

This code is described in "Computational Geometry in C" (Second Edition), Chapter 8. It is not written to be comprehensible without the explanation in that book. Prints out one arm configuration to reach given target. Assumes number of links >= 3. Input: nlinks Number of links L1 L2 ... Ln Link l ...