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python-2.6
python软件下载，最新的python软件，好用，里面的内容协议都是最新的。(python software download, latest python software, easy to use, the contents of which are the latest agreement.)
- 2021-05-13 21:30:02下载
- 积分：1
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ModernWicorwaveFilterStructureAndDesign
现代微波滤波器的结构与设计
一本非常经典的书，对从事滤波器设计的朋友很有帮助.(Modern Microwave Filter Design)
- 2010-01-10 02:45:51下载
- 积分：1
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chaos
吕金虎、陈关荣的混沌时间序列分析及其应用pdf版图书(吕金虎, Chen Guanrong Chaotic Time Series Analysis and Its Application pdf version of the book)
- 2008-04-27 22:32:59下载
- 积分：1
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10_3
说明： 通信天线建模与MATLAB仿真分析一书中10-3题目代码(Communication Antenna Modeling and MATLAB Simulation Analysis 10-3 Topic Codes)
- 2020-06-17 19:00:01下载
- 积分：1
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nannvshengshibie
本文通过对男性和女性声音的语音特征的研究，发现男女声的基音频率存在较大的差异，并设计了基于基音频率分析的男女声识别系统。男女声识别系统由以下三个模块电路构成：话筒放大器，低通滤波器，半波整流电路，单片机测量控制模块。话筒放大器采用NE5532P音前置芯片，对语音信号进行放大；八阶低通滤波器MAX293完成基音信号的提取；单片机STC12C5410AD实现频率测量和控制输出功能。经仿真与电路实测，男女声的识别效果良好。(In this paper, the voices of male and female voice characteristics of the findings of a study of the fundamental frequency of the sound of men and women there is a big difference, and the design of frequency analysis based on the pitch of the voice recognition system for men and women. Voice Recognition System for men and women from the circuit the following three modules: the microphone amplifier, low-pass filter, half-wave rectifier circuit, single-chip measurement control module. NE5532P sound using the microphone pre-amplifier chip amplification of voice signals eight MAX293-order low-pass filter to complete the extraction of pitch signal STC12C5410AD single-chip realization of the frequency of measurement and control output. By circuit simulation and measurement, the identification of male and female voices well.)
- 2009-04-12 16:23:04下载
- 积分：1
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lunwen
两篇关于模型简化的博士论文，对于研究模型简化方面的很有用。(2 on a simplified model of doctoral thesis research model for the simplification of very useful.)
- 2008-06-24 11:46:20下载
- 积分：1
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Python核心编程（第二版）
说明： python核心编程书籍,适合小白入门的一本书强烈推荐(Python core programming books)
- 2020-06-17 08:20:01下载
- 积分：1
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python-2.6
python软件下载，最新的python软件，好用，里面的内容协议都是最新的。(python software download, latest python software, easy to use, the contents of which are the latest agreement.)
- 2021-05-13 21:30:02下载
- 积分：1
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wxPythonInAction
wxPythonInAction一书及其源代码，内容详尽(The book of wxPythonInAction,with its original codes,being very well detailed)
- 2021-01-28 23:58:35下载
- 积分：1
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Teradat
Teradat语言扩展了标准数据库语言，使用起来更加灵活，开发效率更高(Teradat language extends the standard database language, to use more flexible, more efficient development of)
- 2010-02-09 10:39:52下载
- 积分：1
