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橡树岭自动计算机和逻辑机
ORACLE-SQL优化手册,提高SQL的运行效率,加速数据库事务-ORACLE-SQL optimization manual SQL improve operating efficiency and speed up database services
- 2022-03-30 08:35:23下载
- 积分:1
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Modbus是modicom公司提出得一种数据传送方式, 也是现在用的较多的现场总线之一,之所以它这么成功得被应用, 主要原因是因为Modbus协议的简单,和开...
Modbus是modicom公司提出得一种数据传送方式, 也是现在用的较多的现场总线之一,之所以它这么成功得被应用, 主要原因是因为Modbus协议的简单,和开放性较好-Modbus is modicom companies have a data transmission method is now used more fieldbus one reason why it was such a successful application, the main reason is because the Modbus protocol is simple, and openness better
- 2022-03-15 23:05:52下载
- 积分:1
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delphi问题集锦让你成为delphi高手
delphi问题集锦让你成为delphi高手-issue highlights let you become a master delphi
- 2022-07-19 10:57:25下载
- 积分:1
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对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采
用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,...
对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采
用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一
致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。-IQ receiver for the two most important parameters, namely I and Q components of two-way consistency between the amplitude and phase orthogonality may be adopted calculated using the following method: to I, Q 2 signals, respectively for FFT, to find a frequency domain signal amplitude, can be considered as two-way component caused by the range of 1 the I, Q 2 signals into one complex signal for FFT, the spectrum demand of the received image rejection ratio (ie, frequency domain signal and magnitude of the signal mirror ratio), through the image rejection ratio and extent of consistency, the receiver can be derived I and Q phase between the two-way component orthogonality.
- 2022-06-29 08:38:37下载
- 积分:1
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Serial development of a good book on the serial port control, programming and th...
很好的串口开发的电子书 关于串口控件编程以及CSerialPort类的使用与开发!-Serial development of a good book on the serial port control, programming and the use and development of CSerialPort class!
- 2022-01-23 10:32:50下载
- 积分:1
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TCP
Tcp-ip原理.doc-DEC- ip principle. Doc
- 2022-05-20 17:14:56下载
- 积分:1
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在VC6.0 cyapi.lib /文件7.0
cyapi.lib 的文件for vc6.0/7.0-cyapi.lib documents for vc6.0/7.0
- 2022-01-26 01:01:15下载
- 积分:1
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风投内幕,啊很难,我想知道他们当中有没有看到
风投内幕,啊难,不知有谁看到了
- 2022-06-30 15:27:11下载
- 积分:1
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数据结构与算法分析,Java版英文,PDF格式
数据结构与算法分析,Java版英文,PDF格式-Data Structure and Algorithm Analysis, Java Edition in English, PDF format
- 2022-01-25 17:23:54下载
- 积分:1
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nasm中文帮助文档,对学习nasm至关重要
nasm中文帮助文档,对学习nasm至关重要-nasm Chinese help documentation nasm is essential for learning! ! ! ! !
- 2022-07-08 13:07:36下载
- 积分:1