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Cross-Entropy

互相關函數,cross-correlation function

互相關函數,cross-correlation function

標簽： cross-correlation function 函數

上傳時間： 2017-09-28

上傳用戶：huannan88
cross-correlation function

cross-correlation function

標簽： cross-correlation function

上傳時間： 2017-09-28

上傳用戶：kr770906
互相關函數,cross-correlation function

互相關函數,cross-correlation function

標簽： cross-correlation function 函數

上傳時間： 2017-09-28

上傳用戶：ecooo
1602.rar

1602顯示程序顯示CROSS FIRE 基于8051系列單片機附電路圖

標簽： 1602

上傳時間： 2013-07-16

上傳用戶：lw852826
三相固能繼電器

Specification: 輸入信號：DC9-32V&AC100-240V 適用負載：電熱負載，電感負載控制方式：零點觸發（Zero cross turn-on）輸入額定電壓：AC 110-440±10% 輸入額定電流：200-400A 使用頻率：50/60Hz 使用環境：-10℃-50℃ 90%RH 冷卻方式：風冷式

標簽： 三相繼電器

上傳時間： 2013-11-14

上傳用戶：拔絲土豆
基于開關電容技術的鎖定放大器設計

鎖定放大是微弱信號檢測的重要手段。基于相關檢測理論，利用開關電容的開關實現鎖定放大器中乘法器的功能，提出開關電容和積分器相結合以實現相關檢測的方法，并設計出一種鎖定放大器。該鎖定放大器將微弱信號轉化為與之相關的方波，通過后續電路得到正比于被測信號的直流電平，為后續采集處理提供方便。測量數據表明鎖定放大器前級可將10-6 A的電流轉換為10-1 V的電壓，后級通過帶通濾波器級聯可將信號放大1×105倍。該方法在降低噪聲的同時，可對微弱信號進行放大，線性度較高、穩定性較好。 Abstract: Lock-in Amplifying（LIA）is one of important means for weak signal detection. Based on cross-correlation detection theory， switch in the swithched capacitor was used as multiplier of LIA， and a new method of correlation detection was proposed combining swithched capacitor with integrator. A kind of LIA was designed which can convert the weak signal to square-wave， then DC proportional to measured signal was obtained through follow-up conditioning circuit， providing convenience for signal acquisition and processing. The measured data shows that the electric current（10-6 A） can be changed into voltage（10-1 V） by LIA， and the signal is magnified 1×105 times by cascade band-pass filter. The noise is suppressed and the weak signal is amplified. It has the advantages of good linearity and stability.

標簽： 開關電容鎖定放大器

上傳時間： 2013-11-29

上傳用戶：黑漆漆
基于OMAP1510的mp3播放器設計

　　第一章序論……………………………………………………………6 　　1- 1 研究動機…………………………………………………………..7 　　1- 2 專題目標…………………………………………………………..8 　　1- 3 工作流程…………………………………………………………..9 　　1- 4 開發環境與設備…………………………………………………10 　　第二章德州儀器OMAP 開發套件…………………………………10 　　2- 1 OMAP介紹………………………………………………………10 　　2-1.1 OMAP是什麼?…….………………………………….…10 　　2-1.2 DSP的優點……………………………………………....11 　　2- 2 OMAP Architecture介紹………………………………………...12 　　2-2-1 OMAP1510 硬體架構………………………………….…12 　　2-2.2 OMAP1510軟體架構……………………………………...12 　　2-2.3 DSP / BIOS Bridge簡述…………………………………...13 　　2- 3 TI Innovator套件 -- OMAP1510 ……………………………..14 　　2-2.1 General Purpose processor -- ARM925T………………...14 　　2-2.2 DSP processor -- TMS320C55x …………………………15 　　2-2.3 IDE Tool – CCS …………………………………………15 　　2-2.4 Peripheral ………………………………………………..16 　　第三章在OMAP1510上建構Embedded Linux System…………….17 　　3- 1 嵌入式工具………………………………………………………17 　　3-1.1 嵌入式程式開發與一般程式開發之不同………….….17 　　3-1.2 Cross Compiling的GNU工具程式……………………18 　　3-1.3 建立ARM-Linux Cross-Compiling 工具程式………...19 　　3-1.4 Serial Communication Program………………………...20 　　3- 2 Porting kernel………………………………………………….…21 　　3-2.1 Setup CCS ………………………………………….…..21 　　3-2.2 編譯及上傳Loader…………………………………..…23 　　3-2.3 編譯及上傳Kernel…………………………………..…24 　　3- 3 建構Root File System………………………………………..…..26 　　3-3.1 Flash ROM……………………………………………...26 　　3-3.2 NFS mounting…………………………………………..27 　　3-3.3 支援NFS Mounting 的kernel…………………………..27 　　3-3.4 提供NFS Mounting Service……………………………29 　　3-3.5 DHCP Server……………………………………………31 　　3-3.6 Linux root 檔案系統……………………………….…..32 　　3- 4 啟動及測試Innovator音效裝置…………………………..…….33 　　3- 5 建構支援DSP processor的環境…………………………...……34 　　3-5.1 Solution -- DSP Gateway簡介……………………..…34 　　3-5.2 DSP Gateway運作架構…………………………..…..35 　　3- 6 架設DSP Gateway………………………………………….…36 　　3-6.1 重編kernel……………………………………………...36 　　3-6.2 DEVFS driver…………………………………….……..36 　　3-6.3 編譯DSP tool和API……………………………..…….37 　　3-6.4 測試……………………………………………….…….37 　　第四章 MP3 Player……………………………………………….…..38 　　4- 1 MP3 介紹………………………………………………….…….38 　　4- 2 MP3 壓縮原理……………………………………………….….39 　　4- 3 Linux MP3 player – splay………………………………….…….41 　　4.3-1 splay介紹…………………………………………….…..41 　　4.3-2 splay 編譯………………………………………….…….41 　　4.3-3 splay 的使用說明………………………………….……41 　　第五章程式改寫………………………………………………...…...42 　　5-1 程式評估與改寫………………………………………………...…42 　　5-1.1 Inter-Processor Communication Scheme…………….....42 　　5-1.2 ARM part programming……………………………..…42 　　5-1.3 DSP part programming………………………………....42 　　5-2 程式碼………………………………………………………..……43 　　5-3 雙處理器程式開發注意事項…………………………………...…47 　　第六章效能評估與討論……………………………………………48 　　6-1 速度……………………………………………………………...48 　　6-2 CPU負載………………………………………………………..49 　　6-3 討論……………………………………………………………...49 　　6-3.1分工處理的經濟效益………………………………...49 　　6-3.2音質v.s 浮點與定點運算………………………..…..49 　　6-3.3 DSP Gateway架構的限制………………………….…50 　　6-3.4減少IO溝通……………….………………………….50 　　6-3.5網路掛載File System的Delay…………………..……51 　　第七章結論心得…

標簽： OMAP 1510 mp3 播放器

上傳時間： 2013-10-14

上傳用戶：a471778
Rainbow is a C program that performs document classification usingone of several different methods,

Rainbow is a C program that performs document classification usingone of several different methods, including naive Bayes, TFIDF/Rocchio,K-nearest neighbor, Maximum Entropy, Support Vector Machines, Fuhr sProbabilitistic Indexing, and a simple-minded form a shrinkage withnaive Bayes.

標簽： classification different document performs

上傳時間： 2015-03-03

上傳用戶：希醬大魔王
The ability to create groups of reports, and grant users access to reports by group. The ability to

The ability to create groups of reports, and grant users access to reports by group. The ability to generate reports as PDF, XLS, HTML, and CSV files. The ability to generate bar, pie and xy charts for inclusion in reports. The ability to schedule and email PDF, XLS, and CSV reports. The ability to define reusable report parameters. Available parameter types include Date, Text, and Query Parameters. The ability to create multiple DataSources for use in generating reports. Support for JNDI DataSources and internal connection pooling via Commons-DBCP is included. The ability to upload and hot deploy new reports. Web based administration of users, groups, reports, parameters, and datasources. Cross platform database support via Hibernate based persistence layer. Available in a preconfigured bundle with Apache Tomcat.

標簽： ability reports The to

上傳時間： 2014-01-14

上傳用戶：franktu
This toolbox distributes processes over matlab workers available over the intranet/internet (SPMD or

This toolbox distributes processes over matlab workers available over the intranet/internet (SPMD or MPMD parallel model). It is very useful for corsely granular parallelization problems and in the precesence of a distributed and heterogeneus computer enviroment. No need for configuration files ! Cross platforms, cross OS and cross MATLAB versions. Workers can be added to the parallel computation even if it has started. No need of a common file system, all comms are using tcpip connections

標簽： over distributes available processes

上傳時間： 2014-01-03

上傳用戶：希醬大魔王