provided a hard decision of the Viterbi Decoder (2,1, 3) the source code and the...

ModSecurity is a web application firewall (WAF). With over 70% of attacks now carried out over the web application level, organisations need all the help they can get in making their systems secure. WAFs are deployed to establish an increased external security layer to detect and/or prevent attacks before they reach web applications. ModSecurity provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring and real-time analysis with little or no changes to existing infrastructure. 

用c语言实现fft和iir滤波器的设计。可以和matlab中的函数fft,filter等效。-used language fft and IIR filter design. Matlab can and the function fft, filter equivalent.

利用计算机串口通信，实现对GPRS模块的控制，并进行英文及汉字的编码及发送功能。-Computer serial communication is used to achieve control of the GPRS module and the code in English and Chinese characters and send functions.

GB20999-2007-T 交通信号控制机与上位机间的数据通信协议，该标准定义了交通信号机与上位机的行业标准，方便了不同厂家信号机与后台管控平台的对接。

数字电视系统原理及测试 介绍数字电视方面的原理知识-digital television system theory and test digital TV introduced the theory of knowledge

应用背景该代码用于在线多参数水质监测，测量DO，PH，EC，CHLA和TUR的参数及其温度数值，该代码已测试通过，可以使用，采用RS485串口通信，并运用modbus通信协议。关键技术本项目采用了通过STM32控制模拟开关，渐而控制五个传感器的导通情况，用来控制传感器发送采集到的数据，并将采集到的数据打包起来，发送发给上位机。

backup of my rom in pda in my head

qpsk & ofdm in awgn channel

CDMA中PN、Walsh码应用及调制解调的仿真实现-CDMA in the PN, Walsh code modulation and demodulation application and the Simulation

卷积码的维特比译码，约束长度为9，分别采用硬判决和软判决实现-Convolutional code Viterbi decoder, constraint length of 9, respectively, using hard-decision and realize soft-decision