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High
This paper presents a clustering approach
which estimates the specific subspace and the intrinsic dimension of each class. Our approach
adapts the Gaussian mixture model framework to high-dimensional data and estimates
the parameters which best fit the data. We obtain a robust clustering method called High-
Dimensional Data Clustering (HDDC). We apply HDDC to locate objects in natural images
in a probabilistic framework. Experiments on a recently proposed database demonstrate the
effectiveness of our clustering method for category localization.
- 2009-06-22 12:49:53下载
- 积分：1
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3-(2)
电池热失控热安全仿真研究实验报告SCI henhaode a (Battery thermal runaway thermal safety simulation research lab reports SCI)
- 2017-04-03 19:51:52下载
- 积分：1
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wsn path using Dijkstra
wsn using djkstra, use to find the shortest path between the nodes
- 2018-01-24 02:35:05下载
- 积分：1
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Sparsity-Inducing-DOA
基于稀疏分解的宽带信号DOA估计方法，使用了基于贝叶斯的方法具有良好的估计精度和分辨率(Wideband signal sparse decomposition DOA estimation method based on the use of a method based on Bayesian estimation has good accuracy and resolution)
- 2014-09-26 21:25:20下载
- 积分：1
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biyesejitognxinxitong
中文摘要
正交频分复用（ OFDM ， Orthogonal Frequency Division
Multiplexing）是当前一种非常热门的通信技术。它即可以被看作是一种
调制技术，也可以被看作是一种复用技术。由于它具有抗多径衰落和频谱
利用率高的特点，因此被广泛应用于高速数字通信领域，比如应用于IEEE
802.11a无线局域网（WLAN）的物理层等等。
我的毕业设计的核心任务是：采用 FPGA 来实现一个基于OFDM 技术
的通信系统中的基带数据处理部分，即调制解调器。其中发射部分的调制
器包括：信道编码（Reed-Solomon 编码），交织，星座映射，FFT和插
入循环前缀等模块。我另外制作了相应的解调器，可以实现上述功能的逆
变换。
另外，我还对OFDM技术， IEEE 802.11a的标准文献，基于Simulink
的 OFDM 模型和仿真，ALTERA 公司的技术和 IP Core 的使用等方面进
行了研究。这些在文章中都有体现。
(Abstract
Orthogonal frequency division multiplexing (OFDM, Orthogonal the Frequency Division,
Multiplexing) is a very popular communication technology. It can be seen as a
Modulation technique can also be seen as a multiplexing technique. Because of its resistance to multipath fading and spectrum
High utilization characteristics, and is widely used in high-speed digital communications, such as used in IEEE
802.11a wireless LAN (WLAN) physical layer.
The core mission of my graduation project: FPGA to implement a technology based on OFDM
Communication systems in baseband data processing part, ie the modem. These emission part of the modulation
Includes: channel coding (Reed-Solomon coding), interleaving, constellation mapping, FFT and interpolation
Into the cyclic prefix modules. I also produced a corresponding demodulator can achieve the inverse of the above functions
Transformation.
In addition, OFDM technology, the IEEE 802.11a standard literature, based on Simulink
)
- 2012-05-20 21:58:18下载
- 积分：1
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kd
说明： Справка по дельфи
на русском языке
- 2009-10-12 17:55:59下载
- 积分：1
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A-new-memetic-algorithm-approach-for-the-price-ba
memetic algorthium in the distributed generation enivorment
- 2013-09-01 00:47:10下载
- 积分：1
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Phase-Migration
关于地震偏移方法中相移法的详细描述，对于初学者很有帮助。(Migration of seismic data by phase shift)
- 2014-05-03 11:01:19下载
- 积分：1
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MFSKsymblerate
介绍了如何利用FSK信号的小波脊线，进行FSK信号的符号率估计(the estimation of symbol rate for FSK signal)
- 2009-09-04 11:21:22下载
- 积分：1
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HJ-1AFVgusuanfangfa
基于HJ_1A高光谱数据的植被覆盖度估测方法研究(Vegetation coverage estimation method based on HJ_1A hyperspectral data)
- 2013-01-25 09:23:11下载
- 积分：1
