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qrcode
二维码的规范,详细说明了二维码的编码方式和过程(qrcode specification)
- 2015-02-03 15:30:53下载
- 积分:1
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coif12Transform
The demand of high data rate services has been increasing very rapidly and there
is no slowdown in sight. We know that the data transmission includes both wired
and wireless medium. Often, these services require very reliable data transmission
over very harsh environment. Most of these transmission systems experience much
degradation such as large attenuation, noise, multipath, interference, time variance,
nonlinearities and must meet the finite constraints like power limitation and cost
factor. One physical layer technique that has gained a lot of popularities due to
its robustness in dealing with these impairments is multi-carrier modulation technique.
In multi-carrier modulation, the most commonly used technique is Orthogonal
Frequency Division Multiplexing (OFDM)
- 2012-11-24 20:44:51下载
- 积分:1
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melfb.zip
耳蜗实质上相当于一个滤波器组,耳蜗的滤波作用是在对数频率尺度上进行的,在1000HZ下,人耳的感知能力与频率成线性关系;而在1000HZ以上,人耳的感知能力与频率不构成线性关系,而更偏向于对数关系,这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )
- 2014-08-18 12:28:36下载
- 积分:1
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svpwm
三相桥式逆变器的SVPWM控制方式(应用s函数)(Three-phase bridge inverter SVPWM control method (s application function))
- 2020-08-26 16:18:13下载
- 积分:1
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matlab
有关matlab神经网络
——函数说明,可以帮助大家学习!(The matlab neural network- a function description that can help them to learn!)
- 2009-11-14 20:40:43下载
- 积分:1
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shiyan2_1
基于SIMULINK的PID控制器设计与仿真
在第二个和第三个环节之间有累加的扰动输入即:在 5 秒时,幅值为 0.5 的阶跃扰动;控制器为Gc(s) ,反馈环节 H (s )= 1。设定值为0 秒幅值 1 的阶跃信号。(SIMULINK-based PID controller design and simulation)
- 2015-02-14 23:04:57下载
- 积分:1
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work-TA-Final
matlab for pemula pepek busuk
- 2011-07-30 09:47:43下载
- 积分:1
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data
Emulation of the brl instruction for IA64 processors that don t support it in hardware.
- 2014-09-25 11:35:18下载
- 积分:1
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cordic
运用dds改进型算法 cordic算法实现将三角函数旋转任意角度的matlab代码(Using cordic to realize the manipulation of sin or cos function, which is changing their current phase into any given phase.)
- 2014-01-12 16:46:24下载
- 积分:1
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untitled001
屏幕上不停地出现随机(随机颜色,随机边长,随机线宽)的三角形(Constantly appear on the screen randomly (random color, random side, random width) of the triangle)
- 2010-07-11 23:19:09下载
- 积分:1