基于通用集成運(yùn)算放大器,利用MASON公式設(shè)計(jì)了一個(gè)多功能二階通用濾波器,能同時(shí)或分別實(shí)現(xiàn)低通、高通和帶通濾波,也能設(shè)計(jì)成一個(gè)正交振蕩器。電路的極點(diǎn)頻率和品質(zhì)因數(shù)能夠獨(dú)立、精確地調(diào)節(jié)。電路使用4個(gè)集成運(yùn)放、2個(gè)電容和11個(gè)電阻,所有集成運(yùn)放的反相端虛地。利用計(jì)算機(jī)仿真電路的通用濾波功能、極點(diǎn)頻率和品質(zhì)因數(shù)的獨(dú)立控制和正交正弦振蕩,從而證明該濾波器正確有效。 Abstract: A NEW multifunctional second-order filter based on OPs was presented by MASON formula. Functions, such as high-pass, band-pass, low-pass filtering, can be realized respectively and simultaneously, and can become a quadrature oscillator by modifying resistance ratio. Its pole angular frequency and quality factor can be tuned accurately and independently. The circuit presented contains four OPs, two capacitors, and eleven resistances, and inverting input of all OPs is virtual ground. Its general filtering, the independent control of pole frequency and quality factor and quadrature sinusoidal oscillation were simulated by computer, and the result shows that the presented circuit is valid and effective.
標(biāo)簽: MASON 多功能 二階 濾波器設(shè)計(jì)
上傳時(shí)間: 2013-10-09
上傳用戶:13788529953
jbuzzer is an application written in Java that allows mapping your comuter keyboard to sounds. It supports short samples as well as streaming format. The GUI allows dynamically adding and removing NEW slots for samples.
標(biāo)簽: application keyboard jbuzzer comuter
上傳時(shí)間: 2014-12-07
上傳用戶:qoovoop
該系統(tǒng)是本人課程設(shè)計(jì)作業(yè),因?yàn)闀r(shí)間關(guān)系,只用了兩天多的時(shí)間編成。所以有很多地方?jīng)]有得到增強(qiáng)。版本為1.0?,F(xiàn)作以下升級(jí)。 增加NEW,OPEN版本。 提高輸入容錯(cuò)。判斷輸入的對(duì)錯(cuò)。 時(shí)間關(guān)系,搜索功能為線性搜索,現(xiàn)增強(qiáng)如下:f_search:費(fèi)氏查找法;btree:二叉樹查找法;l_search:線性查找法; r_search:遞歸折半查找法;zcsear:雜湊碰撞查找法;o_sear:插補(bǔ)查找加強(qiáng)法; 排序是冒泡法,現(xiàn)增強(qiáng)為:heaps:累堆排序;binary:二叉樹排序;xieer:謝耳排序;sinsert:插入排序;quicks:快速排序;select:選擇排序法; 有時(shí)間不仿試試。
標(biāo)簽:
上傳時(shí)間: 2013-12-30
上傳用戶:釣鰲牧馬
最新的支持向量機(jī)工具箱,有了它會(huì)很方便 1. Find time to write a proper list of things to do! 2. Documentation. 3. Support Vector Regression. 4. Automated model selection. REFERENCES ========== [1] V.N. Vapnik, "The Nature of Statistical Learning Theory", Springer-Verlag, NEW York, ISBN 0-387-94559-8, 1995. [2] J. C. Platt, "Fast training of support vector machines using sequential minimal optimization", in Advances in Kernel Methods - Support Vector Learning, (Eds) B. Scholkopf, C. Burges, and A. J. Smola, MIT Press, Cambridge, Massachusetts, chapter 12, pp 185-208, 1999. [3] T. Joachims, "Estimating the Generalization Performance of a SVM Efficiently", LS-8 Report 25, Universitat Dortmund, Fachbereich Informatik, 1999.
上傳時(shí)間: 2013-12-16
上傳用戶:亞亞娟娟123
介紹幾種cpuThe 8xC251SA/SB/SP/SQ improves on the MCS-51 architecture and peripheral features, introducing the advanced register based CPU architecture i.e., the MCS 251 microcontroller architecture. The register based CPU supports a 40-byte register file. In addition, the 8xC251SA/SB/SP/SQ microcontroller has 256-Kbyte expanded external code/data memory space and 64-Kbyte stack space. The NEW controller is also specially designed to execute C code efficiently. More importantly, the 8xC251SA/SB/SP/SQ maintains binary code compatibility with MCS 51 microcontrollers but at the same time allows the use of the powerful MCS 251 microcontroller instruction set, with many NEW 8, 16 and 32 bit instructions available. The 8xC251SA/SB/SP/SQ has 512 bytes or 1 Kbyte of on-chip data RAM options and is available in 16 Kbytes and 8 Kbytes of on-chip ROM/OTPROM or ROMless options.
標(biāo)簽: architecture introducin peripheral improves
上傳時(shí)間: 2015-03-15
上傳用戶:ccclll
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(biāo)簽: ability reports The to
上傳時(shí)間: 2014-01-14
上傳用戶:franktu
在一個(gè)類中要用到另一個(gè)類的方法,通常是在文件 ∶ 頭import進(jìn)來(lái),然后在用到時(shí)再NEW一個(gè)對(duì)象,我現(xiàn)在 ∶ 希望我的一個(gè)類里有一個(gè)方法,該方法接受一個(gè)類名和 ∶ 一個(gè)方法名,然后在在程序中動(dòng)態(tài)的調(diào)用其他類的方法 ∶ 而不要在文件頭import該類,免得每引用一個(gè)類的方法就要 ∶ 從新編譯,如何實(shí)現(xiàn)呢? ∶ 另外在java里調(diào)c++的dll文件我也沒(méi)試通,請(qǐng)各位大蝦 ∶ 指教! ∶ 多謝,多謝!
標(biāo)簽:
上傳時(shí)間: 2013-12-21
上傳用戶:z1191176801
LED段碼計(jì)算工具,增加了方便的功能 NEW
上傳時(shí)間: 2015-03-23
上傳用戶:stvnash
先編寫MFC DLL,打開VC++6.0 => File => NEW => Project => MFC AppWizzard(dll),在 Project name 里輸入Calc =>Next => Finish. 好了,現(xiàn)在你打開Workspace的FileView就可以看到已經(jīng)有Calc.h、Calc.cpp、stdafx.h、stdafx.cpp這4個(gè)文件了.
上傳時(shí)間: 2013-12-21
上傳用戶:13681659100
學(xué)習(xí)類的,深入研究NEW和Delete,看后會(huì)很收益的:)
標(biāo)簽:
上傳時(shí)間: 2014-01-26
上傳用戶:jichenxi0730
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