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通讯/手机编程 Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assum
Computes BER v EbNo curve for convolutional encoding / soft decision
Viterbi decoding scheme assuming BPSK.
Brute force Monte Carlo approach is unsatisfactory (takes too long)
to find the BER curve.
The computation uses a quasi-analytic (QA) technique that relies on the
estimation (approximate on ...
邮电通讯系统 This program simulates the bit-error-rate (BER) performance of OSTBC with L=4 antennas over the fr
This program simulates the bit-error-rate (BER) performance of OSTBC
with L=4 antennas over the frequency flat Rayleigh block fading channel
The code is developed for real orthogonal design, code rate 1/2
modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.
单片机开发 NRF905驱动代码 // The content of this struct is nRF905 s initialize data. // CH_NO=1 433MHZ Normal O
NRF905驱动代码
// The content of this struct is nRF905 s initialize data.
// CH_NO=1 433MHZ Normal Opration,No Retrans RX,TX Address is 4 Bytes
// RX TX Payload Width is 32 Bytes Disable Extern Clock Fosc=16MHZ
// 8 Bits CRC And enable
数值算法/人工智能 I ve written some many years ago dynamic Huffman algorithm to compress and decompress data. It is ma
I ve written some many years ago dynamic Huffman algorithm to compress and decompress data. It is mainly targeted to data with some symbols occuring more often than the rest (e.g. having some data file consisted of 3 different symbols and their total number of occurence in that file s1(1000), s2(200 ...
单片机开发 As mentioned, most computers include a serial port. The only hardware setup required is connecting t
As mentioned, most computers include a serial port. The only hardware setup required is connecting the serial cable to the serial port on the PC and the serial port on the instrument. The serial instrument may include some hardware drivers or software utilities for communication, and should include ...
加密解密 This file contains a C++Builder 4 project called SimplyChaos-X ver 3.1 (SCX31). SCX31 is an encry
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 ...
加密解密 Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种
Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种，被美国NIST作为DSS(DigitalSignature Standard)。算法中应用了下述参数：
p：L bits长的素数。L是64的倍数，范围是512到1024；
q：p - 1的160bits的素因子；
g：g = h^((p-1)/q) mod p，h满足h < p - 1, h^((p-1)/q) mod p > 1；
x：x < q，x为私 ...
嵌入式Linux Flash中内置了一个状态寄存器（Status Register
Flash中内置了一个状态寄存器（Status Register，SR）来指示Flash的当前工作状态和各种操作是否成功。要读取SR的当前值需要向CUI发送读状态寄存器命令（Read Status Register），命令码为0x70，SR中的内容将在DQ[7:0]上输出。The Read Status Register （0x70）command causes subsequent reads to output data from the SR ...
加密解密 这学期刚学密码学
这学期刚学密码学，RSA算法相对简单，于是写了这个小软件.开发环境:VC++6.0。
RSA的安全性依赖于大数分解。公钥和私钥都是两个大素数。据猜测，从一个密钥和密文推断出明文的难度等同于分解两个大素数的积。
数据加密算法RSA的关键在于大素数的生成,本软件采取数组形式解决大素数的存储和运算问题,可生成超过1024位的十 ...
单片机开发 The acceptance and introduction of serial communication to more and more applications has led to re
The acceptance and introduction of serial communication to more and more
applications has led to requirements that the assignment of message identifiers to
communication functions be standardized for certain applications. These applications
can be realized with CAN more comfortably, if the address r ...