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m5
说明： 这是国外一本经典教材附带的程序，通信系统的matlab实现，所含例子丰富(This is a classic foreign materials attached to the procedures, communications systems to achieve matlab contains abundant examples of)
- 2009-05-21 20:34:20下载
- 积分：1
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busdatas
linedatas of IEEE standard systems for Optimal power flow
- 2009-06-06 13:27:59下载
- 积分：1
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Bode-Niquist-locus-graph
自己编写的伯德图、尼奎斯特图、根轨迹图的Matlab绘图程序，虽然小、简单，却很实用。便于大家教学中分析习题。(I have written Byrd map, Nyquist diagram, root locus diagram of the Matlab graphics program, although small, simple, very practical. Facilitate the analysis of U.S. teaching exercises.)
- 2008-08-06 19:30:28下载
- 积分：1
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yiliaofeiyongcesuan0609
基于matlab程序对医疗保险费用进行测算，对于医疗保险费用的测算很有帮助(Based on the matlab program to calculate the cost of medical insurance, medical insurance costs for the estimated useful)
- 2011-10-14 15:15:35下载
- 积分：1
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g_rank
yoahsd jsoifn skahfh sakfdoaiw skjahwqo askhdpa aslkda (yoahsd jsoifn skahfh sakfdoaiw skjahwqo askhdpa aslkda)
- 2013-11-03 17:23:25下载
- 积分：1
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IGBTBuck
buck电路，元器件是IGBT，最简单的实例(buck circuit, components are IGBT, the simplest example of)
- 2010-06-04 16:14:21下载
- 积分：1
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finefrequencyoffest
ofdm精同步算法实现，包含slot_test和其他8个模块(ofdm fine synchronization algorithm, including slot_test, and other 8 modules)
- 2009-10-07 16:31:07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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ZF
说明： 迫零预编码是基于单小区，简单且实用的信道检测算法，用于和MMSE多小区用户的信道检测比较(Zero-forcing precoding is based on a single-cell, channel detection is relatively simple and practical channel detection algorithm for multi-cell users and MMSE)
- 2015-03-25 10:04:56下载
- 积分：1
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filter_silvio_wavrecords
Function to generate a voice signal, adding noise, and filtering to recover the original signal.
- 2014-02-04 20:58:47下载
- 积分：1
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