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源码 matlab神经网络算法通信信号调制识别

%========================开始提取加噪信号的各类特征值================================ for n=1:1:50;     m=n*Ns;     x=(n-1)*Ns; for i=x+1:m;          %提取加噪信号'signal_with_noise=y+noise'的前256个元素,抽取50次     y0(i)=signal_with_noise(i); ...
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源码 matlab神经网络算法通信信号调制识别y

%========================开始提取加噪信号的各类特征值================================ for n=1:1:50;     m=n*Ns;     x=(n-1)*Ns; for i=x+1:m;          %提取加噪信号'signal_with_noise=y+noise'的前256个元素,抽取50次     y0(i)=signal_with_noise(i); ...
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技术资料 基于超声技术的室内定位设计

本设计以STC89LE52AD单片机和超声换能器为核心,采用时间到达法,移动节点的超声波接收模块和射频发射模块以及固定节点的超声波发射模块和射频信号接收模块。利用三点决定一个平面原理设定三个固定超声波发射点。用射频信号的发射和接收时间作为计时点,根据固定节点超声波发射和移动节点接收到超声波之间的时间差确定固定节点 ...
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模拟电子 了解模数转换器的噪声、ENOB

Abstract: Specifications such as noise, effective number of bits (ENOB), effective resolution, and noise-free resolution inlarge part define how accurate an ADC really is. Consequently, understanding the performance metrics related to noise isone of the most difficult aspects of transitioning from ...
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模拟电子 在单端应用中采用差分I/O放大器

  Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total outp ...
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模拟电子 用于信号调理的微电路

  Low power operation of electronic apparatus has becomeincreasingly desirable. Medical, remote data acquisition,power monitoring and other applications are good candidatesfor battery driven, low power operation. Micropoweranalog circuits for transducer-based signal conditioningpresent a sp ...
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模拟电子 Analog Circuit Design in Porta

•Founded in Jan. 08, 2001 in Shanghai, China.•Fabless IDH focused on Analog & Mixed Signal Chip design & marketing •Over 100 IC introduced.•Over 200 OEM Customer worldwide•ISO-9000 Certified•Distribution Channel in Taiwan, China & Japan To achieve 100% customer sa ...
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单片机编程 基于ATmega16的简易示波器设计

介绍了以AVR单片机ATmega16为核心,采用前端信号调理电路、程控增益放大器以及波形显示LCD(GDM12864A)实现的一个简易示波器。并给出该系统设计的硬件和软件设计方案。 Abstract:  Abstract:This paper introduces an easy digital storage oscilloscope based on the AVR microcontroller ATmega16,especially em ...
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工控技术 某飞行器舵机控制系统硬件设计

研究一种基于TMS320F28335 DSP(Digital Signal Processor)的全数字飞行器控制系统的硬件设计,分析了其结构组成:主控制器电路、舵面位置检测电路和通讯等硬件电路设计。经过多次试验调试,所设计的硬件系统可以满足飞行器性能要求。 ...
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单片机开发 A new cable fault location method based on wavelet reconstruction is proposed. In this method the

A new cable fault location method based on wavelet reconstruction is proposed. In this method the difference between the currents of faulty phase and sound phase under the high voltage pulse excitation is used as the measured signal and is decomposed in multi-scale by wavelet transform, then reconst ...
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