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在线试题库系统的设计与实现
随着网络技术的飞速发展,现在很多国外的大学和社会其他部门都已经开设了远程教育,通过计算机网络实现异地教育和培训。当前,计算机硬件技术的发展已经达到了相当高的水平。但是,远程教育软件的开发目前还处于起步阶段,随着这项技术的不断深入发展,就要求有更好、更完善的软件系统应用到远程教育当中去,这就给软件设计人员提出了更高的设计要求。
- 2020-11-27下载
- 积分:1
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STMF407蓝牙遥控小车
蓝牙遥控小车,绝对可以运行。。。。详细请看我的蓝牙小车篇。
- 2021-05-07下载
- 积分:1
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多目标优化进化算法程序
基于NSGA-2思想的多目标优化程序,采用进化算法处理多目标实值优化问题
- 2020-12-03下载
- 积分:1
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陷波滤波器matlab程序
陷波器是一种特殊的带阻滤波器,其阻带在理想情况下只有一个频率点,因此也被称为点阻滤波器。这种滤波器主要用于消除某个特定频率的干扰,例如,在各种测量仪器和数据采集系统中用于消除电源干扰的工频陷波器。
- 2020-11-27下载
- 积分:1
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张正友相机标定Opencv实现(完整程序+棋盘图)实例源码
张正友相机标定Opencv实现,附棋盘图和14张不同角度标定图。包含完整的工程代码,有详细的注释说明,一键运行。实现了相机标定、输出相机内参、外参、旋转和平移矩阵、标定效果评价、以及使用标定结果对原始棋盘图进行矫正。
- 2020-12-06下载
- 积分:1
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Lumped Elements for RF and Microwave Circuits (Bahl 2003)
Lumped Elements for RF and Microwave Circuits英文版,射频微波电路入门Lumped Elements for RFand microwave circuitsFor a listing of recent titles in the Artech House Microwave library,turn to the back of this bookLumped Elements for RFand microwave circuitsInder bahlArtech houseBoston londonwww.artechhouse.comLibrary of Congress Cataloging-in-Publication DataBahl, I.J.Lumped elements for RF and microwave circuits /Inder Bahlp cm.--(Artech House microwave libraryncludes bibliographical references and indexISBN 1-58053-309-4(alk. paper1. Lumped elements(Electronics) 2. Microwave integrated circuits. 3. Radiofrequency integrated circuits. 4. Passive components. I. Title. II. SeriesTK7874.54B342003621.38132-dc212003048102British Library Cataloguing in Publication DataBahl, I. J. Inder jit)Lumped elements for RF and microwave circuits.-(Artech House microwave library1. Radio circuits 2. Microwave circuits I. Title621.38412ISBN1-58053-3094Cover design by Igor Valdmar2003 ARTECH HOUSE, INC.685 Canton StreetNorwood Ma 02062All rights reserved Printed and bound in the United States of America. no part of this bookmay be reproduced or utilized in any form or by any means, electronic or mechanical, includingphotocopying, recording, or by any information storage and retrieval system, without permissionn writing from the publisherall terms mentioned in this book that are known to be trademarks or service marks have beenappropriately capitalized. Artech House cannot attest to the accuracy of this information. Useof a term in this book should not be regarded as affecting the validity of any trademark or servicemarkInternational Standard Book Number: 1-58053-309-4Library of Congress Catalog Card Number: 200304810210987654321To my adorable grandsons, Karan and Rohan Kaushal, with whom I play, cry,and laugh, and who have provided me with the idea and inspiration towrite this bookContentsPrefaceXVAcknowledgmentsXXIntroduction1.1 History of Lumped Elcements)Why Use Lumped Elements for rF andMicrowave circuits1.3 L, C, R Circuit Elements1.4 Basic Design of Lumped Elements4.1 Capacitor1.4.2 Inductor4.3 Resistorumped-Element Modelin1. 6 Fabrication1.7 ApplicationsReferencesInductors2.1 IntroductionLumped Elements for RF and Microwave Circuits2.2 Basic Definitions2.2.1 Inductance2.2.2 Magnetic Energy182.2.3 Mutual Inductance202. 2. 4 Effective Inductance202.2.5Imedang2.2.6 Time Constant2.2.7 Quality Factor222.2.8 Self-Resonant Frequency232.2.9aximum Current Ratin2.2.10 Maximum Power Rating2.2.11 Other Parameters232.3 Inductor Configurations242.4 Inductor models2. 4. 1 Analytical Models252.4.2 Coupled-Line Appiroach282.4.3 Mutual Induse arppi342.4.4 Numerical Approach362.4.5 Measurement-Based model382.5 Coupling Between Inductors452.5. 1 Low-Resistivity Substrates2.5.2 High-Resistivity Substrates462.6 Electrical Representations2.6. 1 Series and Parallel representations2.6.2 Network Representations51References52Printed Inductors573.1 Inductors on Si Substrate583.1.1 Conductor Loss3.1.2 Substrate Loss3. 1.3 Layout Considerations3.1.4 Inductor Model3. 1.5 Q-Enhancement Techniques3.1.6 Stacked-Coil Inductor803.1.7 Temperature Dependence84
- 2021-05-07下载
- 积分:1
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带高斯白噪声的Kalman滤波Matlab代码(带注释)
带高斯白噪声的Kalman滤波Matlab代码,每一步都有详细的注释,和kalman滤波的五个公式对应。并有高斯白噪声的产生函数,function G = CreateGauss(E,D,M,N) %产生均值为E,方差为D,MxN的高斯白噪声矩阵
- 2020-12-02下载
- 积分:1
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ENVI5.0-5.3SP1汉化
ENVI是一个完整的遥感图像处理平台,ENVI5.0-5.3SP1汉化包,覆盖同名文件夹下文件即可,操作简单,5.3SP1亲测可用。
- 2020-07-01下载
- 积分:1
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stm32f103c8t6频率计.zip
基于stm32f103c8t6的频率计,测频范围,最小0.几Hz,最大到几MHz,自动变档位,精度挺高。
- 2020-12-06下载
- 积分:1
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AD9910 QPSK实现,ISE完整代码
ISE13.2以上可以编辑,直接打开可用,连bit文件都有,直接打开就好
- 2021-05-07下载
- 积分:1