SHA-1(Secure Hash Algorithm)是美國國家標準局(National Institute of Standard and Technology NIST)為了配合數位簽章演算法(Digital Signature Algorithm DSA)的使用所發布的聯邦資訊處理標準-FIPS PUB 180-1(Federal Information Processing Standard Publication 180-1),而SHA-1 則是SHA-1 (FIPS180)的改良版,現今與MD5 皆廣被使用拿來做密碼驗證功能.其設計的方法是根據MD4,來對輸入的資料訊息(Message)產生出一個160 位元的訊息摘要(Digest) ,對於資料安全性提供了有效的保障.
標簽: Technology Algorithm Institute National
上傳時間: 2014-01-01
上傳用戶:gxf2016
在單片機應用系統中,常用到模擬輸出,數模D/A轉換器(Digital to Analog Converter)是一種能把數字量轉換成模擬量的電子器件
上傳時間: 2016-04-11
上傳用戶:talenthn
This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and digital-to-analog converter (DAC) circuit element to obtain >28dB high frequency noise reduction when compared to classicalfrequency synthesis.
標簽: fractional-N transmitter bandwidth circuits
上傳時間: 2016-04-14
上傳用戶:er1219
基于調幅和調頻的基本原理,運用產生信號的兩種基本方法,使用CCS軟件以及Digital Signal Processor實現調幅調頻信號的發生。
上傳時間: 2014-01-01
上傳用戶:jqy_china
Qpsk signal Processing Code The DSP code should be efficient and accurate to properly demodulate the incoming signal. The DSP can be coded strictly in “C” or C-language can be intermingled with assembly code.include Real Time Digital Signal Processor Code – Main.c file BER Test Code
標簽: Processing demodulate efficient accurate
上傳時間: 2014-08-10
上傳用戶:dancnc
The neuro-fuzzy software for identification and data analysis has been implemented in the MATLAB language ver. 4.2. The software trains a fuzzy architecture, inspired to Takagi-Sugeno approach, on the basis of a training set of N (single) output-(multi) input samples. The returned model has the form 1) if input1 is A11 and input 2 is A12 then output =f1(input1,input2) 2) if input1 is A21 and input 2 is A22 then output =f2(input1,input2) 看不懂,據高手說,非常有用。
標簽: identification neuro-fuzzy implemented analysis
上傳時間: 2014-01-12
上傳用戶:zgu489
This exercise is aimed at exploring how rate control and adaptation of carrier sense threshold can affect spatial reuse (and hence aggregate throughput) in a multi-hop network.
標簽: adaptation exploring threshold exercise
上傳時間: 2016-05-07
上傳用戶:D&L37
Swarm是一個非常有用的仿真工具,這是Swarm的Java程序編寫教程,從最簡單的程序開始一步一步教會讀者如何使用Swarm來編寫程序,最終依據所建立的數學模型實驗Multi-agent的仿真
上傳時間: 2016-05-08
上傳用戶:ruan2570406
This zip file provides Getting Started quickly on the AT91RM9200 Evaluation Kit (AT91RM9200-EK) with Green Hills 3.6.1 Multi® 2000 Software Tool. Includes main.html file for help.
標簽: 9200 Evaluation provides Getting
上傳時間: 2013-12-26
上傳用戶:cuibaigao
high frequency design:The eye diagram provides visual information that can be useful in the evaluation and troubleshooting of digital transmission systems
標簽: information frequency evaluati provides
上傳時間: 2016-05-30
上傳用戶:小寶愛考拉