Location:
Search - 4 orthogonal
Search list
Description: 离散余弦变换(D iscrete Cosine Transform )简称D CT,是一种实数域变换,其变换核为实数的余弦函数,除了具有一般的正交变换性质外,它的变换阵的基向量能很好地描述图像信号的相关特征,所以在图像信号的变换中,D CT变换被认为是一种准最佳变换。
-discrete cosine transform (D iscrete Cosine Transform) referred D CT it is a real domain transform, transform its nuclear real number of cosine function, in addition to the general nature of the orthogonal transformation, its transformation matrix-vector can be a good image to describe the relevant characteristics of the signal, the image signal transformation, D CT transformation has been seen as a potential best transformation.
Platform: |
Size: 291840 |
Author: 刘东 |
Hits:
Description: 正交多小波在信号滤波中的应用，小波滤波方法-Orthogonal multiwavelets in signal filtering, wavelet filtering method
Platform: |
Size: 43008 |
Author: gordonjun |
Hits:
Description: 详细介绍CDMA的工作原理，CDMA扩频通信原理，还介绍了多进制伪码正交调制系统-CDMA details the working principle, CDMA Principles of Spread Spectrum Communication, also introduced the pseudo-code M-ary orthogonal modulation system
Platform: |
Size: 866304 |
Author: 夏子婷 |
Hits:
Description: This paper is" a technique for orthogonal frequency division multiplexing frequency offset correction which wrote by H.Moose
Platform: |
Size: 620544 |
Author: Tony |
Hits:
Description: Ｍ＝４正交信号时数字通信系统进行蒙特卡罗仿真程序，当均值分别等于０，０.１，１.０，２．０时完成１００００个比特的仿真并求出误比特概率。绘出理论误码率和蒙特拉罗仿真的差错率并进行比较这俩个结果，并绘出每个均值情况下判决器的１０００个接受信噪比抽样-M = 4 orthogonal signals in digital communication systems Monte Carlo simulation program, when the mean, respectively, equivalent to 10,000 completed 0,0.1,1.0,2.0 simulation bit and bit error probability are obtained. Mapping theory and蒙特拉罗BER simulation这俩error rate and compare results, and the mean circumstances of each mapped
Platform: |
Size: 2048 |
Author: 金玲 |
Hits:
Description: 这是一本介绍正交试验法的好书，对于数学专业以及对数学专业要求很高的学科很有帮助。-This is an orthogonal test, introduced the book, for mathematics and mathematics disciplines demanding helpful.
Platform: |
Size: 3743744 |
Author: 翟进乾 |
Hits:
Description: An Orthogonal Genetic Algorithm with Quantization for Global Numerical optimition.pdf目前比较好的一种新式遗传算法其中详细的给出了拉丁方格的计算法，可进行高维函数计算-An Orthogonal Genetic Algorithm with Quantization for Global Numerical optimition.pdf relatively good at present a new genetic algorithm which gives a detailed calculation of Latin squares, high-dimensional function can be calculated
Platform: |
Size: 285696 |
Author: huwentao |
Hits:
Description: 以cos（2*pi*k*t/N）信号空间，k=0,1,……N-1, 取N= 4，8，16，32，64等基信号作为传输信号，通过计算机仿真正交信号的误码率。-To cos (2* pi* k* t/N) signal space, k = 0,1, ... ... N-1, take N = 4,8,16,32,64, such as the base signal as a transmission signal, through computer simulation orthogonal signal BER.
Platform: |
Size: 54272 |
Author: caomin |
Hits:
Description: Space鈥揟ime Block Codes from Orthogonal Designs.
Platform: |
Size: 239616 |
Author: Muhammad Omer |
Hits:
Description: 图像处理的基础上正交方向前进扩散偏微分方程图像修复和去噪模型变化问题-an orthogonal—directional forward diffusion Partial Differential Equation
(PDE)image inpainting and denoising model which processes image based on variation problem is
proposed
Platform: |
Size: 428032 |
Author: 小屋 |
Hits:
Description: optical orthogonal code
Platform: |
Size: 245760 |
Author: aaaaaa |
Hits:
Description: Orthogonal frequency-division multiplexing (OFDM) is a bandwidth-efficient signaling scheme for
wideband digital communications.
Platform: |
Size: 146432 |
Author: Ikram |
Hits:
Description: Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing(OFDM) systems.-Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing(OFDM) systems.
Platform: |
Size: 136192 |
Author: jenna |
Hits:
Description: MIMO无线传输 无线传输 无线传输 -MIMO transmission model, JAKAFANI Quasi orthogonal space time block codes with four transmit and one receive antenans over flat fading channel with maximum likelihood detector (ML)
Platform: |
Size: 544768 |
Author: albert |
Hits:
Description: 通过对几种准正交空时分组码进行仿真，得到相关的性能曲线-Adoption of several quasi-orthogonal space-time block codes for simulation, to be related to performance curve
Platform: |
Size: 480256 |
Author: 杨玲 |
Hits:
Description: BIOMETRIK SUARA DENGAN TRANSFORMASI
WAVELET BERBASIS ORTHOGONAL DAUBENCHIES
Platform: |
Size: 278528 |
Author: cnamz |
Hits:
Description: A paper on optical orthogonal code
Platform: |
Size: 868352 |
Author: Md.Rokibul Alam |
Hits:
Description: 医学图像融合为临床诊断、手术设计与效果评估等提供不同模态影像互补信息。构造具有3 阶消失矩的双正交多小波滤
波器, 其以高斯函数一次泰勒规范展开正交化后得到的完备二次单位正交基作为尺度函数。利用构造的多小波滤波器, 分别对
CT、MRI 医学图像进行分解, 使用基于多小波分解改进的局部能量加权规则融合图像。结果表明改进规则融合了源图像主要信息,
优于常用的融合规则。应用构造的多小波滤波器可有效地融合医学图像, 略优于DGHM多小波-Medical image fusion provides complementary information of the different modal images for diagnosis, surgery design
and evaluation.Therefore, complete unit orthogonal bases with second degree were obtained by orthonormalizing first order Taylor
expansion of Gauss function.The biorthogonal multiwavelet filter with third order vanished moment was designed with the bases as
scale functions.First CT and MRI medical images were discomposed with the designed filter.Then the fused scheme with local
energy weight was modified on the multilevel.Finally the fused image was obtained with the scheme.The result indicated the
fused image preserved the details of each input image successfully.It was more effective than the general fused scheme.The
designed filter can be used to fuse medical image efficiently, and is a little effective than DGHM multiwavelet
Platform: |
Size: 104448 |
Author: 杨颜华 |
Hits:
Description: relay selection schem for orthogonal for AF relaying
Platform: |
Size: 227328 |
Author: hamed |
Hits:
Description: This paper analyzes the performance of phase
feedback, quasi-orthogonal space-time block codes (QOSTBC)
and Extended OSTBC systems in the presence of
feedback delay, feedback error and amount of channel
feedback. Space-time code constructed for nT transmit
antennas can easily be extended to nT×p antennas transmit
based on a feedback of only p-1 bits. This paper shows that
more feedback bits (more than p-1 bits) in ideal system
(EOSTBC system with no feedback delay and no feedback
error) cause no more considerable performance in the
system. But in the inaccurate feedback information with
increasing feedback bits from p-1 bits decrease sensitivity of
system and increase performance considerably. This paper
obtains an upper bound for phase feedback error respect to
number of feedback bits. Moreover it shows that the system
can select adaptively one of the three modes, phase only
feedback, EO-STBC and QO-STBC with respect to
reliability and amount of feedback information.
Platform: |
Size: 797696 |
Author: serag |
Hits:
« 12
3
4
5
6
7
8
9
10
...
22
»