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笔者长期从事移动通信系统的无线链路调制与解调、物理层实现方面的工作。在移动通信GSM系统中,我们进行语音或者业务信道解调时,都会遇到CRC的求解。通常在硬件DS...
笔者长期从事移动通信系统的无线链路调制与解调、物理层实现方面的工作。在移动通信GSM系统中,我们进行语音或者业务信道解调时,都会遇到CRC的求解。通常在硬件DSP实现时,特别是40位CRC求解时候,由于生成多项式有41项,DSP最大一次能处理40位,所以使用单个寄存器会遇到一些困难,那么以下这个程序将会解决这一困难(这是针对定点DSP、C55xx的编程实现方法)。-The author has long been engaged in mobile communication system modulation and demodulation of wireless links, the physical layer to achieve work. GSM in the mobile communications system, we have a voice or channel demodulation operations, it will encounter the solution of CRC. DSP hardware usually realize, especially when solving the 40 CRC, as the generation polynomial has 41, DSP can handle the largest 40, so using a single register may encounter some difficulties, then following this process will solve this One difficulty (which is for fixed-point DSP, C55xx realize programming methods).
- 2022-06-18 05:18:56下载
- 积分:1
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RSA演示代码,运行环境VC++6.0,研究RSA的可以
RSA演示代码,运行环境VC++6.0,研究RSA的可以-RSA demo code, runtime environment VC++ 6.0, Research RSA can
- 2022-02-11 13:21:18下载
- 积分:1
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tuyecrypt
tuyecrypt-2.1a
- 2022-08-20 14:23:40下载
- 积分:1
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Sun公司Dream项目,DVB CAS系统
Sun公司Dream项目,DVB CAS系统-Sun Company Dream Project, DVB CAS system
- 2023-07-15 07:45:03下载
- 积分:1
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rsa加密算法实例
rsa加密算法实例-rsa encryption algorithm examples
- 2022-11-16 00:45:03下载
- 积分:1
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CRC16 turn a small program, very good with the ah, we try
转CRC16的小程序,很好用呀,大家试一试-CRC16 turn a small program, very good with the ah, we try
- 2023-05-28 18:20:04下载
- 积分:1
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对JPEG2000图像的小波系数的最高两位平面用随机数进行加密
对JPEG2000图像的小波系数的最高两位平面用随机数进行加密-JPEG2000 images of wavelet coefficients with the highest two-plane random number encrypted
- 2022-11-18 13:15:05下载
- 积分:1
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delphi编写的加壳程序,实现对文件保护
delphi编写的加壳程序,实现对文件保护-delphi write the packers program to realize File Protection
- 2022-08-23 18:21:54下载
- 积分:1
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一些重要的加密算法的实现
一些重要的加密算法的实现---主要是针对大学密码学课程中的算法实践,例如: 维吉尼亚密码,置换密码,移位密码-Some key encryption algorithm--- mainly aimed at the realization of the University of cryptography algorithms for practical courses, such as: Virginia password, replacement password, password, and so shift
- 2022-11-14 20:50:03下载
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/* RSA Demo 1.0 版 * 版权所有 (C) 2004 赵春生 * 2004.04.25 * http://timw.yeah.net * http...
/* RSA Demo 1.0 版 * 版权所有 (C) 2004 赵春生 * 2004.04.25 * http://timw.yeah.net * http://timw.126.com * 本程序调用Miracl ver 4.82大数运算库,详见其附带手册。 * P,Q,N,D,E使用RSATool2生成。 */ 编译提示: 一:将Project-Settings-Settings For(All Configuration)-C/C++中Category项的 Precompiled Headers设置成:Automatic use of precompiled headers(图1)。 二:将ms32.lib添加到工程中(图2)。 三:MIRACL是C库。 extern "C" { #include "miracl.h" #include "mirdef.h" } #pragma comment( lib, "ms32.lib" )-/* RSA Demo version 1.0* Copyright (C) 2004 Zhao Chunsheng 2004.04.25*** http://timw.126.com http://timw.yeah.net* The procedures called Miracl ver 4. The majority of computing for 82, as detailed in its fringe manual.* P, Q, N, D, E use RSATool2 generation.*/Compiler Tip : 1 : Project-Settings- Settings For (All Configuration)- C/C Category, of OO Headers set : Automatic use of precompiled headers (Figure 1). 2 : ms32.lib added to the project (Figure 2). 3 : MIRACL C library. Extern "C" (# include "miracl.h"# include "mirdef.h")# pragma
- 2023-01-22 15:25:03下载
- 积分:1