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qkdmath
book about quantum security and quantum technique , like bb84 and sarg04 and other protocols
- 2013-02-08 02:16:10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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opening-system
说明: 操作系统课件 习题 ppt 和很好的课后习题答案(Operating system software ppt and good after-school exercises exercises answers)
- 2011-03-12 10:40:57下载
- 积分:1
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集成运算放大器应用电路集萃
一本有效用于学习运算放大器的书籍,通过多种实验图纸给出了详细的工作状况(A book for effective learning of operational amplifiers)
- 2019-06-20 14:54:40下载
- 积分:1
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EXEebookedit
EXE电子书制作讲解了如何制作EXE格式的电子书,是一本比较好的参考资料。(EXE ebook creating explain how to produce EXE format e-books, is a good reference.)
- 2006-12-27 10:32:28下载
- 积分:1
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super-wavelet-analysis
超小波分析与应用的讲义,包含2、3、4、7、8、9章内容,有塔式算法、脊波和曲波变换、Surfacelet变换等(The the super wavelet analysis and application of handouts, 2,3,4,7,8,9 chapter, tower algorithm, ridgelet and curvelet transform, Surfacelet transform etc.)
- 2012-12-30 14:33:45下载
- 积分:1
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OptiSystem-Simulate-examples
Optisystem 模拟实例大全,初学应该不错(Optisystem simulate examples, good for new users)
- 2015-05-01 05:53:37下载
- 积分:1
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hackbaseVIP_43
黑客基地VIP会员内部培训资料!
第43讲:零起点教你手动对软件脱壳(Hackers VIP membership base within the training materials! 43 Lecture: beginners to teach you the software manually shelling)
- 2010-06-29 11:14:34下载
- 积分:1
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200909081238
邵伟华四柱预测学入门,doc 文件格式的 占卜类的 电子书(ShaoWeiHua test zhouyi)
- 2009-09-08 12:41:52下载
- 积分:1
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book
VLSI数字信号处理系统:设计与实现(英文版)_[K.Parhi著][机械工业出版社][2003][801页].pdf(VLSI Digital Signal Processing Systems: Design and Implementation (English) _ [K. Parhi a] [Machine Press] [2003] [801]. Pdf)
- 2010-12-22 11:29:44下载
- 积分:1