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function
汉化的数字信号处理工具箱1.0版中的Matlab 函数
用于<数字信号处理及MATLAB实现>一书
(Localization of digital signal processing toolbox of Matlab 1.0 function,
Used for "digital signal processing and MATLAB > )
- 2012-05-20 15:30:20下载
- 积分:1
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BroadbandMIMO-OFDMwirelesscommunications
一篇关于宽带MIMO-OFDM系统的文章,从最基本的系统结构,到复杂的信道估计等都有极其详细的论述,可以说代表了当今MIMO-OFDM系统研究的潮流和研究现状的总述!(one of the Broadband MIMO-OFDM articles from the most basic system structure, to complex channel estimation and others all have very detailed exposition It can be said on behalf of today's MIMO-OFDM system and the trend of the total study to the status quo!)
- 2007-05-04 23:24:13下载
- 积分:1
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matpower
最优潮流 基于matlab 经过测试 可以使用(OPF has been tested can be used based on matlab)
- 2020-11-23 20:49:33下载
- 积分:1
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1D-FDTD
一维FDTD,MATLAB代码,可以绘制场量动图(One-dimensional FDTD, MATLAB code, you can draw the amount of field action figure)
- 2021-02-10 20:49:52下载
- 积分:1
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Fsk
FSK调制方法 (FSK modulation)
- 2010-07-20 20:37:05下载
- 积分:1
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sift
1 SIFT 发展历程
SIFT算法由D.G.Lowe 1999年提出,2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式,对其进行改进。
2 SIFT 主要思想
SIFT算法是一种提取局部特征的算法,在尺度空间寻找极值点,提取位置,尺度,旋转不变量。
3 SIFT算法的主要特点:
a) SIFT特征是图像的局部特征,其对旋转、尺度缩放、亮度变化保持不变性,对视角变化、仿射变换、噪声也保持一定程度的稳定性。
b) 独特性(Distinctiveness)好,信息量丰富,适用于在海量特征数据库中进行快速、准确的匹配[23]。
c) 多量性,即使少数的几个物体也可以产生大量SIFT特征向量。
d) 高速性,经优化的SIFT匹配算法甚至可以达到实时的要求。
e) 可扩展性,可以很方便的与其他形式的特征向量进行联合。
4 SIFT算法步骤:
1) 检测尺度空间极值点
2) 精确定位极值点
3) 为每个关键点指定方向参数
4) 关键点描述子的生成
本包内容为sift算法matlab源码(1 SIFT course of development
SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement.
2 the SIFT main idea
The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant.
3 the main features of the SIFT algorithm:
a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability.
b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23].
c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors.
d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements.
e) The scalability can be very convenient fe)
- 2012-05-25 15:31:16下载
- 积分:1
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电动汽车充电功率需求的统计学建模方法
电动汽车充电功率需求的统计学建模方法,可以看看喔(Electric vehicle charging power requirements of the statistical modeling methods, you can see Oh)
- 2011-09-14 10:59:43下载
- 积分:1
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paper5
Synchronization and partial synchronization of linear maps
- 2015-02-07 20:59:22下载
- 积分:1
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matlab_Koch
利用Matlab对Kouch曲线的程序编写,能生成Koch曲线并绘制图形,级数作为外部参数输入,可调整。(The use of Matlab program of Kouch curve to write, can generate Koch curve and graphics rendering, series as external input parameters, can be adjusted)
- 2013-12-09 22:16:41下载
- 积分:1
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PAPR
关于OFDM降低PAPR的方法,并给出了clipping前后的CCDF曲线图。(About OFDM PAPR reduction method, and gives the CCDF diagram of curves before and after clipping.)
- 2015-04-21 19:24:09下载
- 积分:1