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aa
说明: 用DS18B20和89C51实现的恒温控制系统(DS18B20 and 89C51 with the temperature control system to achieve)
- 2009-06-14 02:37:11下载
- 积分:1
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71402020-M701_Camera-YHM701F_03.1(GC0329)
Camera GC0329 0.3M FPC EFL=1.82mm
- 2013-08-01 19:08:56下载
- 积分:1
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ULA
已知:信号中心波长为2,天线阵元的间距为1米,快拍数为2000,空中有四个
源信号,假设它们的频率
四个源信号的方向分别为:
求:
1)在不加入噪声的情况下,观察并计算协方差矩阵特征值,并对它的特点
加以说明
2)分别采用MUSIC算法,CAPON算法, ESPRIT算法在下面四种情况下,对
上述四个信号源的波达方向进行估计,并画出它们的空间谱图;
①在不加入噪声的情况下,
②在加入高斯白噪声的情况下,假设信噪比为10dB
3)在信噪比变化范围为-20dB~+20dB时,分别采用MUSIC算法,CAPON算
法, ESPRIT算法,对上述四个信号源的波达方向进行估计,并画出波达方
向估计误差,随着信噪比变化的曲线图(即横轴为信噪比,纵轴为误差值)()
- 2008-07-01 16:10:08下载
- 积分:1
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Diary
自己做的日志管理系统,做的不好,数据库链接还有点问题但是文档写得很详细(Dairy )
- 2011-11-16 13:20:20下载
- 积分:1
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small-target-detection-
介绍了经典的时频分布和检测理论的同时,作者利用时频分布的方法,将一
维时间信号转化到二维的时频空间中,通过提取图像的特征来判决信号和杂波,
采用的数据是使用McMaster IPIX雷达,在加拿大东海岸附近测得的。实测数据
研究表明此方法可以得到很好的检测结果。
(In this paper,we first review the time-frequency analysis and time
-frequency-based detection methods.Secondly,by analyzing a mass of the measured
data of sea clutter,we show the difference of time-frequency geometric features
between echoes with a target and pure sea clutter.Finally,we given the detection
algorithm based on the time-frequency geometric features.The results of the measured
data show that the proposed method can effectively find low-velocity small targets in
sea clutter.This approach is a novel try to detect small targets in sea clutter.)
- 2012-03-12 14:08:00下载
- 积分:1
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PITE3980
说明: PITE3980蓄电池放电仪监测系统管理说明书,整个系统完全解释,欢迎下载交流。(PITE3980 battery discharge was monitored system management manual, the entire system is fully explained, please download the exchange.)
- 2010-03-26 18:30:46下载
- 积分:1
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huirexitongzhengding
说明: 单回路整定,主要对象为锅炉汽水系统,所运用的方法为三冲凉控制。(Single-loop tuning, the main target for the boiler water system, the method used for the control of the three showers.)
- 2010-04-01 15:25:37下载
- 积分:1
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MIS
是不错的MIS规划书,基于C、java、vb、vc等都可以,很好的编程资料(It s a good planning book about MIS,basing on Cjavavbvc...,good programing material)
- 2012-03-01 19:00:24下载
- 积分:1
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lianglun
两轮平衡车设计电路等!!稳定安全使用,有设计图电路图等(Wheeled design of the circuit. ! Stable and safe to use, design schematic)
- 2012-08-09 09:14:02下载
- 积分:1
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Archlab.pdf
CSAPP体系结构实验文档,通过hcl设计优化流水线处理器,令人受益匪浅(CSAPP handout)
- 2013-04-13 10:00:43下载
- 积分:1