Description: The need for accurate monitoring and analysis of sequential data arises in many scientic, industrial
and nancial problems. Although the Kalman lter is effective in the linear-Gaussian
case, new methods of dealing with sequential data are required with non-standard models.
Recently, there has been renewed interest in simulation-based techniques. The basic idea behind
these techniques is that the current state of knowledge is encapsulated in a representative
sample from the appropriate posterior distribution. As time goes on, the sample evolves and
adapts recursively in accordance with newly acquired data. We give a critical review of recent
developments, by reference to oil well monitoring, ion channel monitoring and tracking
problems, and propose some alternative algorithms that avoid the weaknesses of the current
methods. Platform: |
Size: 419574 |
Author:阳关 |
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Description: 此程序实现的是对一幅图像进行卡尔曼滤波实现多天线时变信道下基于卡尔曼滤波跟踪的数字图像通信系统仿真-Realize this procedure is the image of a Kalman filter to achieve multi-antenna time-varying channel tracking based on Kalman filtering of digital image communication system simulation Platform: |
Size: 46080 |
Author:袁辉 |
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Description: 《MIMO-OFDM关键技术的研究和完整仿真平台的建立》，建立了一个完整的MIMO-OFDM的仿真平台，为实际的硬件平台提供解决方案，给出性能评估。为建立这个完整的仿真平台，本文从MIMO-OFDM信号模型，提出系统实现的各个关键技术:帧同步和载波频偏估计、信道估计、采样同步和载波跟踪、空时/频编解码。- MIMO-OFDM key technology research and the establishment of a complete simulation platform , the establishment of a complete MIMO-OFDM simulation platform, for the actual hardware platform to provide solutions, given performance evaluation. For the establishment of the integrity of the simulation platform, this article from the MIMO-OFDM signal model, the system in all key technologies: frame synchronization and carrier frequency offset estimation, channel estimation, sampling synchronization and carrier tracking, space-time/frequency codecs. Platform: |
Size: 2463744 |
Author:李继龙 |
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Description: GSM TCH/FS 信道编码仿真
仿真通信系统包括内外编码器、交织重排器、加性/突发或混合干扰信道、去交织反重排器、内外译码器，模拟了信息从信源到信宿的全过程；
在高斯噪声、突发干扰或混合信道下测试每个步骤对误码率和系统性能的影响，通过数字及图形的比较，得出通信系统中各个模块的作用。-GSM TCH/FS channel coding simulation Simulation of communication systems, including internal and external encoder, interleaving rearrangement, and additive/sudden or mixed channel interference, de-interlacing anti-rearrangement, and internal and external decoder, analog information from the source to the letter places the entire process in Gaussian noise, sudden disruption or mixed channel to test each step of the bit error rate and system performance, through the figures and graphics comparison, the communication system in the role of each module. Platform: |
Size: 45056 |
Author:123456 |
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Description: 数据辅助的载波相位跟踪，在第n个接收符号的DFT之后，导引子载波等于信道频率响应和已知符号的乘积根据余下的频率误差旋转以后的结果。-Data-aided carrier phase tracking in the first n months after receiving DFT symbols, guided subcarriers equivalent channel frequency response and known symbol of the product in accordance with rotation frequency error remaining after the results. Platform: |
Size: 1024 |
Author:李贞铭 |
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Description: Nonstationary Channel Estimation
using a Kalman Tracking Filter
卡尔曼滤波算法的一个一个用，可用作 efk学习之用-Nonstationary Channel Estimation using a Kalman Tracking Filter Kalman filter algorithm one by one, and can be used as a learning efk Platform: |
Size: 164864 |
Author:jerial |
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Description: I need estimation channel MIMO-OFDM because I do synchronous CFO and SFO by tracking algorithm Obelix-I need estimation channel MIMO-OFDM because I do synchronous CFO and SFO by tracking algorithm Obelix Platform: |
Size: 10240 |
Author:bachka |
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Description: Deaf people use facial expressions a non-manual channel for conveying grammatical information in sign language. Tracking facial features using the Kanade - Lucas - Tomasi (KLT) algorithm is a simple and effective method toward recognizing these facial expressions, which are performed simultaneously with head motions and hand signs. To make the tracker robust under these conditions, a Bayesian framework was developed as a feedback mechanism to the KLT tracker. This mechanism relies on a set of face shape subspaces learned by Probabilistic Principal Component Analysis. An update scheme was utilized to modify these subspaces and adapt to persons with different face shapes. The result shows that the proposed system can track facial features with large head motions, substantial facial deformations, and temporary face occlusions by hand.-Deaf people use facial expressions as a non-manual channel for conveying grammatical information in sign language. Tracking facial features using the Kanade- Lucas- Tomasi (KLT) algorithm is a simple and effective method toward recognizing these facial expressions, which are performed simultaneously with head motions and hand signs. To make the tracker robust under these conditions, a Bayesian framework was developed as a feedback mechanism to the KLT tracker. This mechanism relies on a set of face shape subspaces learned by Probabilistic Principal Component Analysis. An update scheme was utilized to modify these subspaces and adapt to persons with different face shapes. The result shows that the proposed system can track facial features with large head motions, substantial facial deformations, and temporary face occlusions by hand. Platform: |
Size: 189440 |
Author:Ng Jack |
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Description: 澳大利亚新南威尔士大学研究的GPS接收机的FPGA跟踪模块的.v程序，包括载波跟踪环路、码跟踪环路、通道累加等模块。-The University of New South Wales, Australia, the study of the FPGA tracking GPS receiver module. V procedures, including the carrier tracking loop, code tracking loop, the channel accumulation modules. Platform: |
Size: 14336 |
Author:Jerry |
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Description: 眼睛跟踪鼠标移动，就跟Linux里面的眼睛效果一样，画眼睛的算法不错。-Eye tracking mouse movement, just like the Linux effect inside the eye and draw the eyes of the algorithm is good. Platform: |
Size: 219136 |
Author:wulingbo |
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Description: 该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。
这包括最新型的衰落信道，误码率计算，并改善控制回路动态。-This model implements a generic OFDM TX and RX, which is not tied to any particular industry standard. The objective of this model is to develop and explore a continuous (not “bursty”) carrier and timing tracking synchronization scheme. The techniques incorporated can then be extended and modified to suite specific communications standards. The model uses an “acquisition” technique that exploits the correlation properties of the cyclic prefix to get a rough estimate of the frame boundary before attempting to accomplish the fine tracking algorithms. The model implements a 64 carrier OFDM waveform with a 16 point cyclic prefix. The OFDM symbol has 16 pilots, 3 guard tones (0 amplitude at band edge) and uses 4 QAM for the 45 remaining data streams.
This latest model includes a fading channel, BER computation, and improved control loop dynamics.
Platform: |
Size: 293888 |
Author:zaaa |
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Description: The is a fully functional GPS SDR. It can accept real data or simulate its own data. It performs correlation, signal parameters discrimination, and loop filtering both code and carrier with the option of carrier loop aiding of the code loop. There are many support functions such as the numerically controlled oscillator, coarse acquisition code generator that are in the archive. This does not include the acquisition engine, just the channel tracking state machine. The also outputs carrier phase measurements and modulo 1ms pseudorange.-The is a fully functional GPS SDR. It can accept real data or simulate its own data. It performs correlation, signal parameters discrimination, and loop filtering both code and carrier with the option of carrier loop aiding of the code loop. There are many support functions such as the numerically controlled oscillator, coarse acquisition code generator that are in the archive. This does not include the acquisition engine, just the channel tracking state machine. The also outputs carrier phase measurements and modulo 1ms pseudorange. Platform: |
Size: 26624 |
Author:Mathew Cosgrove |
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Description: 室外场景下由于场景背景条件变化容易导致视频目标跟踪稳定性差。该文提出一种利用红外和可见光传感
器的双通道视频目标跟踪方法。该算法利用可见光图像的目标颜色特征和红外图像的目标轮廓特征，结合均值漂移
算法与水平集曲线演化实现目标定位，并给出了目标尺度和模板更新方法；对多目标跟踪的互相遮挡问题，通过判
断目标合并与分离实现遮挡时多个目标的定位。实验结果表明，该文方法能够有效处理光照变化、阴影、遮挡等情
况，实现目标的稳定跟踪。-Considering the poor stability of the video object tracking methods in outdoor scenes when the
background circumstance variation in object images occurs, a new method is presented for object tracking based on
infrared and visible dual-channel video. It extracts the Hue, Saturation, Value (HSV) color feature in visible image
and the contour feature in infrared image, and combines the Mean Shift (MS) algorithm and the level set evolution
algorithm to realize object location, also, the object scalar and model update mechanism is presented. To address
the multiple object occlusion problems, a method is presented to locate multiple objects by determining the object
merger and separation. Experimental results on infrared and visible dual-channel video demonstrate that the
proposed method can successfully cope with the cases in complex environment such as illumination changes,
shadow, occlusion, etc.. Platform: |
Size: 386048 |
Author:majun |
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Description: Identification and Tracking of Rapidly Time Varying Mobile Channels for Improved Equalization.The goal of this paper is to
investigate the effectiveness of this channel tracking method when applied to rapidly fading channels. It is shown that, by appropriately
modifying the channel estimation and equalization procedures, the
same benefits as in a slow fading system can be obtained. Simulation results demonstrate the improved performance resulting from the use
of channel tracking in rapidly time varying channels. Platform: |
Size: 218112 |
Author:abd091 |
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Description: 国外最近的一篇变步长nlms仿真，该文件有文中的几种仿真，包括基本的仿真，信道突变下的追踪性能和语音回声消除的性能分析-Recent foreign nlms a variable step simulation, the file has the text of several simulations, including basic simulation, channel tracking performance under mutation and voice echo cancellation performance analysis Platform: |
Size: 4096 |
Author:wfhappy |
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Description: 自己编程实现对通道里的细胞的跟踪，标注，计算，并计算细胞的面积、周长、个数、并能判断2种细胞-Their programming implementation of the cells in the channel tracking, tagging, computing, and calculate the cell area, perimeter, number, and can determine two kinds of cells Platform: |
Size: 249856 |
Author:lin |
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Description: The problem of channel equalization via channel
identification (CEQCID) that has previously been considered by a
handful of researchers is explored further. An efficient algorithm
for mapping the channel parameters to the equalizers coeficients
is proposed. The proposed scheme is compared with a lattice
least squares (LS) based receivers. For the particular application
of the high frequency (HF) radio channels, we find that the
CEQCID has lower computational complexity. In terms of the
tracking performance, also, the CEQCID has been found to be
superior to the LS based receivers [4]. We emphasize on the
implementation of a fractionally tap-spaced decision feedback
equalizer (DFE) and compare that with the T-spaced DFE of
[4]. We show that the former is a better choice for the multipath
HF channel-The problem of channel equalization via channel
identification (CEQCID) that has previously been considered by a
handful of researchers is explored further. An efficient algorithm
for mapping the channel parameters to the equalizers coeficients
is proposed. The proposed scheme is compared with a lattice
least squares (LS) based receivers. For the particular application
of the high frequency (HF) radio channels, we find that the
CEQCID has lower computational complexity. In terms of the
tracking performance, also, the CEQCID has been found to be
superior to the LS based receivers [4]. We emphasize on the
implementation of a fractionally tap-spaced decision feedback
equalizer (DFE) and compare that with the T-spaced DFE of
[4]. We show that the former is a better choice for the multipath
HF channel Platform: |
Size: 420864 |
Author:hamed |
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Description: 基于CT目标跟踪算法的改进，主要加入了多通道的图像信息。跟踪更鲁棒。-To use multi-channel image compressive tracking. The method is more robust than CT. Platform: |
Size: 7168 |
Author:Jack Jones |
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Description: We propose a compressive method for tracking doubly selective
channels within multicarrier systems, including OFDMsystems. Using
the recently introduced concept of modified compressed sensing
(MOD-CS), the sequential delay-Doppler sparsity of the channel is
exploited to improve estimation performance through a recursive estimation
mode. The proposed compressive channel tracking algorithm
uses a MOD-CS version of OMP with reduced complexity.
Simulation results demonstrate substantial performance gains over
conventional compressive channel estimation Platform: |
Size: 309248 |
Author:liying |
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Search - channel tracking