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数据结构 密码学界牛人Victor Shoup用C++编写数论类库。 NTL is a high-performance, portable C++ library providing data struct
密码学界牛人Victor Shoup用C++编写数论类库。
NTL is a high-performance, portable C++ library providing data structures and algorithms for arbitrary length integers for vectors, matrices, and polynomials over the integers and over finite fields and for arbitrary precision floating point arithmetic.
N ...
matlab例程 复接入
复接入，B/W双用户使用直接扩频序列
％ >>>multiple access b/w 2 users using DS CDMA
％ >>>format is : cdmamodem(user1,user2,snr_in_dbs)
％ >>>user1 and user2 are vectors and they should be of equal length
％ >>>e.g. user1=[1 0 1 0 1 0 1] , user2=[1 1 0 0 0 1 1],snr_in_dbs=-50
％ >>>or snr_in_dbs=50 ju ...
Windows CE pccard driver s3c2440.The S3C2440A offers outstanding features with its CPU core, a 16/32-bit ARM92
pccard driver s3c2440.The S3C2440A offers outstanding features with its CPU core, a 16/32-bit ARM920T RISC processor designed by
Advanced RISC Machines, Ltd. The ARM920T implements MMU, AMBA BUS, and Harvard cache architecture
with separate 16KB instruction and 16KB data caches, each with an 8-word ...
数据结构 用两个数组实现的基数排序方法
用两个数组实现的基数排序方法，时间为（array.length）的平方
文件格式 XTHIDE is a GUI that allows the user to hide a text message in an image file. The user will be ask
XTHIDE is a GUI that allows the user to hide a text message in an image file.
The user will be asked for a key that will be used to both encode and decode the text into an image.
The key can be of length from 2 to 900 characters.
The encryption pattern for a key hell is not a subset of the encr ...
数值算法/人工智能 Measuring Frequency Content in Signals I this section we will study some non parametric methods fo
Measuring Frequency Content in
Signals
I this section we will study some non parametric methods for spectrum estimation
of a stochastic process. These methods are described in the literature.
All methods are based on the Periodogram which is defined for a sequence x[n]
with length N according to ...
嵌入式/单片机编程 使用FPGA/CPLD设置语音AD、DA转换芯片AIC23
使用FPGA/CPLD设置语音AD、DA转换芯片AIC23，FPGA/CPLD系统时钟为24.576MHz
1、AIC系统时钟为12.288MHz，SPI时钟为6.144MHz
2、AIC处于主控模式
3、input bit length 16bit output bit length 16bit MSB first
4、帧同步在96KHz
压缩解压 This code implements the arithmetic coding algorithm used for text compression. At present it takes
This code implements the arithmetic coding algorithm used for text compression. At present it takes an input of fixed length but that can be modified in the code as required.
数据结构 伸展树
伸展树，基本数据结构，The tree is drawn in such a way that both of the edges down from a node are the same length. This length is the minimum such that the two subtrees are separated by at least two blanks.
其他书籍 摘 要 文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。 简单介绍了有损静态图
摘 要
文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。
简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。
介绍JPEG基本原理：JPEG对灰度图像的压缩处理 ...