Description: 基于DVB-T的一维插值信道估计和均衡
在瑞利和莱斯信道环境下对DVB传输码流进行信道估计和均衡。-based on the DVB-T one-dimensional interpolation channel estimation and balanced in Rayleigh Road and Rice letter environment for DVB transport stream for channel estimation and balanced. Platform: |
Size: 1024 |
Author:孙剑 |
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Description: 基于DVB-T的二维插值信道估计和均衡。
在时域和频域对DVB传输码流进行信道估计和均衡。-based on the DVB-T's two-dimensional interpolation channel estimation and balanced. In the time domain and frequency domain for DVB transport stream for channel estimation and balanced. Platform: |
Size: 2048 |
Author:孙剑 |
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Description: mimo-ofdm系统基于梳状导频的信道估计，使用最小二乘法，线性内插。-mimo- ofdm system based on comb-Pilot channel estimation, the use of least squares linear interpolation. Platform: |
Size: 3072 |
Author:尚尔博 |
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Description: This paper investigates the design of joint frequency
offset and carrier phase estimation of a multi-frequency time division
multiple access (MF-TDMA) demodulator that is applied to
a digital video broadcasting—return channel system via satellite
(DVB-RCS). The proposed joint estimation algorithm is based on
the interpolation technique for two correlation values in the frequency
and phase domains. This simple interpolation technique
can significantly improve frequency and phase resolution capabilities
of the proposed technique without increasing the number of
the correlation values. In addition, the overall block diagram of a
digital communications receiver for DVB-RCS is presented, which
was designed using the proposed estimation algorithms.
Index Terms—Carrier phase estimation, DVB-RCS, frequency
offset estimation, interpolation, joint estimation, MF-TDMA.-This paper investigates the design of joint frequencyoffset and carrier phase estimation of a multi-frequency time divisionmultiple access (MF-TDMA) demodulator that is applied toa digital video broadcasting-return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based onthe interpolation technique for two correlation values in the frequencyand phase domains. This simple interpolation techniquecan significantly improve frequency and phase resolution capabilitiesof the proposed technique without increasing the number ofthe correlation values. In addition, the overall block diagram of adigital communications receiver for DVB-RCS is presented, whichwas designed using the proposed estimation algorithms.Index Terms-Carrier phase estimation, DVB-RCS, frequencyoffset estimation, interpolation, joint estimation, MF-TDMA. Platform: |
Size: 500736 |
Author:吴大亨 |
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Description: This paper considers semiblind channel estimation
and data detection for orthogonal frequency-division multiplexing
(OFDM) over frequency-selective fading channels.-This paper considers semiblind channel estimationand data detection for orthogonal frequency-division multiplexing (OFDM) over frequency-selective fading channels. Platform: |
Size: 409600 |
Author: |
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Description: 文章研究了基于导频的OFDM系统信道估计插值算法-Research article based on the pilot of the OFDM system channel estimation interpolation algorithm Platform: |
Size: 79872 |
Author:王云峰 |
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Description: 双向亚像素运动估计算法，具体步骤如下：
(1) 进行整像素精度的双向运动估计；
(2) 以(1)得到的运动矢量所指向的像素点为中心，内插1/2像素点，再进行双向运动估计；
依此类推，直到得到所需的像素精度为止。
-Bi-directional sub-pixel motion estimation algorithm, concrete steps are as follows: (1) for the whole two-pixel accuracy motion estimation (2) to (1) obtained by the motion vectors point to point as the center pixel, interpolation 1/2 pixel points, bi-directional motion estimation again and so on, until the necessary pixel accuracy so far. Platform: |
Size: 24576 |
Author:郑丹 |
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Description: 基于梳状导频的OFDM信道估计程序。
该程序用matlab仿真了基于梳状导频序列的OFDM信道估计，内插采用了线性内插法。-Comb-based pilot of the OFDM channel estimation procedures. Matlab simulation using the program based on the comb-like sequence of OFDM pilot channel estimation, interpolation using a linear interpolation. Platform: |
Size: 3072 |
Author:季炜 |
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Description: 利用各类插值的方法，对无线或者其他信道进行估计。插值包括2次、3次等-The use of various types of interpolation methods, or other wireless channel estimation. Interpolation of 2 times, 3 second-class Platform: |
Size: 1024 |
Author:罗西基 |
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Description: LTE在TDD模式下，不同插值方法的信道估计-LTE In the TDD mode, a different interpolation method of channel estimation Platform: |
Size: 12893184 |
Author:HM |
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Description: 频域不同导频密度的信道估计在被研究，并且在高低时延信道其信道估计被固定了导频分配时域。频域信道估计是基于插补，多项式的广义线性模型（或最小二乘法）和维纳滤波（或线性最小均方误差法）的方法。时域的信道估计是用线性插补完成的。我们通过测量在基于克拉克散射模型的瑞利衰落信道上并带有QPSK调制的粗误码率，已经比较了所有这些方案的结果。-Different pilot density in frequency domain channel estimate to research, and its high and low delay channel estimation channel was fixed allocation of time-domain pilot. Frequency domain channel estimation is based on interpolation, polynomial generalized linear model (or least squares) and the Wiener filter (or linear minimum mean square error method) method. Time domain channel estimation is done using linear interpolation. We are by measuring the scattering model based on Clark and Rayleigh fading channels with QPSK modulation bit error rate of crude, has compared the results of all these programs. Platform: |
Size: 2505728 |
Author:雨儿 |
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Description: 信道估计仿真，采用了多种方法：线性插值，MMSE，1惟MMSE,2维MMSE等-Channel Estimation
1 for non-block-wise linear interpolation,
2 for block-wise 1-D MMSE,
3 for non-block-wise 1-D MMSE,
4 for block-wise 2-D MMSE,
5 for non-block-wise 2-D MMSE,
6 for ideal channel estimator,
7 for random pilots map case using 2-D MMSE. Platform: |
Size: 4096 |
Author:todd |
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Description: OFDM信道估计，该文件夹包括19个M文件，包括误码率检测，插值计算，瑞利信道等-OFDM channel estimation, the folder includes 19 M files, including bit error rate detection, interpolation, Rayleigh channel, etc. Platform: |
Size: 10240 |
Author:hanshuanglin |
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Description: 本篇論文提出的整合式解交錯(Integrated De-interlacing)的演算法，可以有效提昇移
動區域的畫面，但是當移動估計不正確時，反而會使移動補償後的畫面變得很差，為了
改善這種情況，因此結合移動可適性解交錯的優點，並將空間圖場內插(Spatial
Interpolation)的方式改成ELA(Edge Line Average)來設計，經過電腦模擬的結果發現，不僅在視覺上提高畫面的解析度，在某些影像峰值訊號雜訊比(Peak Signal Noise Ratio ,
PSNR)也比線平均解交 錯(Line Average De-interlacing)多出好幾分貝的畫質增益。
此外，在整合式解交錯演算法中也增加影片偵測(Film Detection)和影像加強(Image
Enhancement)的演算法設計，在這樣演算法的架構下，透過影片偵測的演算法，我們可
真實地還原3:2 Pull Down 的影片格式，而不會有鋸齒狀(Saw-Toothed)的畫面出現，而影
像加強的演算法，則可以在解交錯後，經過影像的調整，使輸出畫面呈現不同的效果，
達到消費者的需求。-The main theme of this thesis is an integrated de-interlacing system, which incorporates
several known and improved techniques in a nice manner to produce good de-interlaced image
quality. We first develop an accurate motion detector that classifies image regions into
stationary, low-motion, and high-motion categories. The simple field merging method is
applied to the stationary regions. The edge line average interpolation method is applied to the
slow-motion regions. Finally, the motion-compensated interpolation is applied to the
high-motion regions. In addition, hierarchical motion estimation and motion vector smoothing
techniques are employed to enhance the quality of estimated motion vectors. Our computer
simulation shows that the subjective image quality is improved by using the proposed scheme.
Also, its PSNR measures are better than the conventional spatial or temporal interpolation
schemes. Platform: |
Size: 1171456 |
Author:robin |
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Description: LTE下行链路信道估计，两发两收天线。基于导频的LS加插值仿真-LTE downlink channel estimation, two rounds of the two received antenna. Pilot-based simulation of LS plus interpolation Platform: |
Size: 95232 |
Author:如歌 |
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Description: 卡尔曼滤波器进行信道估计的一篇文章，适用于OFDM-MIMO系统。-Kalman filter for channel estimation in an article for OFDM-MIMO systems. Platform: |
Size: 1717248 |
Author:陈阳 |
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Search - interpolation estimation