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说明: This article introduces two new configurations for precision current sources and current mirrors. Both
circuits use n-p-n bipolar devices, but one provides a current source while the other provides a current sink. This
permits the use of current sources in IC designs implemented with processes that do not allow p-n-p devices.
Analog building blocks such as voltage-to-current converters, active loads, and sink and source current mirrors
can be constructed from the new circuits using only n-p-n devices. Furthermore, because these circuits achieve
the required precision without the use of high-gain amplifiers, the bandwidths of the circuits are large compared to conventional configurations. The source currents are dependent on a single reference voltage and exhibit good temperature sensivitity
- 2010-03-29 09:23:55下载
- 积分:1
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界面漂亮的JSP聊天室程序
界面漂亮的JSP聊天室程序,使用了基于jQuery实现的AJAX技术,运行前需要配置好JSP服务器,功能并不多,只实现了无刷新发送消息功能,帮助JSP新手更好的理解AJAX的使用。
- 2022-01-22 12:34:25下载
- 积分:1
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ofdm信道特性 channel
ofdm信道特性
Channel transmission simulator
Channel transmission simulator
%
% inputs:
% sig2 - noise variance
% Mt - number of Tx antennas
% Mr - number of Rx antennas
% x - vector of complex input symbols (for MIMO, this is a matrix, where each column
% is the value of the antenna outputs at a single time instance)
% H - frequency selective channel - represented in block-Toeplitz form for MIMO transmission
% N - number of symbols transmitted in OFDM frame
%
% outputs:
% y - vector of channel outputs (matrix for MIMO again, just like x matrix)
% create noise vector sequence (each row is a different antenna, each column is a
% different time index) note: noise is spatially and temporally white(channel characteristics of OFDM Channel transmission simulatorChannel transmission simulator inputs: sig2- noise variance Mt- number of Tx antennas Mr- number of Rx antennas x- vector of complex input symbols (for MIMO, this is a matrix, where each column is the value of the antenna outputs at a single time instance) H- frequency selective channel- represented in block-Toeplitz form for MIMO transmission N- number of symbols transmitted in OFDM frame outputs: y- vector of channel outputs (matrix for MIMO again, just like x matrix) create noise vector sequence (each row is a different antenna, each column is a different time index) note: noise is spatially and temporally white)
- 2008-06-06 10:33:53下载
- 积分:1
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c语言编程软件Dev-Cpp最新中文版
c语言编程软件Dev-Cpp最新中文版C programming language Dev-Cpp, the latest Chinese version(C programming language Dev-Cpp, the latest Chinese version)
- 2017-07-17 14:23:37下载
- 积分:1
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制作软盘镜像文件核心代码,希望对磁盘镜像学习者能有一定启示...
制作软盘镜像文件核心代码,希望对磁盘镜像学习者能有一定启示-floppy disk image file produced the core code, and I hope to disk mirroring learners can have a certain amount Inspiration
- 2022-07-18 14:53:32下载
- 积分:1
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TrajectoryOptimizationFmincon-master
说明: 使用MATLAB中fmincon函数进行约束规划,解决最优化问题(Fmincon function for trajectory optimization)
- 2019-03-01 16:56:25下载
- 积分:1
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基于51单片机的PS2键盘
基于51单片机设计的PS2键盘,是作为从机,通过PS2接口连接到电脑,程序包括开机自检,发送键值和矩阵扫描。经测试完全可用注意要在开机之前把键盘接上电脑接口,让电脑BIOS自检的时候对键盘进行设置,才能成功读取键盘的内容。
- 2022-01-31 17:33:53下载
- 积分:1
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nRF24L01无线模块
说明: nrf24l01通信的个别程序,希望有用(Nrf24l01 communication individual procedures, hope useful)
- 2020-06-19 15:40:02下载
- 积分:1
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netdisk
baidu netdisk download tool
- 2020-06-19 06:00:01下载
- 积分:1
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愤怒的小鸟
愤怒的小鸟是一款微信小游戏,这是源码,大家可以参考(Angry Birds is a Wechat game, this is the source code, you can refer to)
- 2020-06-20 19:00:02下载
- 积分:1