In this paper, a novel general design method of quasi-orthogonal space-time block codes for four antennae is presented.
本文提出了一种新的四天线准正交空时分组码的通用设计方法。
Whereas the non-orthogonal space-time block codes which obtain higher transmission rate at the cost of orthogonality and partial diversity gain may degrade the performance.
而以牺牲正交性和部分分集增益为代价来获得更高传输速率的非正交空时分组码又会使误码性能降低。
So whenever you know the potential as a function of space, you can always find the three components of the forces in the three orthogonal directions.
因此不管势能受空间，位置的影响是多少，你总能发现力在，空间三个垂直方向的，分力。
With only 800 sq feet of space, the Silo House is a unique arrangement of circular and orthogonal elements, giving a nod to the upstate New York architectural vernacular that surrounds it.
在仅有800平方英尺的空间内，筒仓屋体现了圆与方的独特组合，并富有纽约州北部当地的建筑风格。
A calculating formula for surface integrals under orthogonal transformation of space coordinates is given.
给出曲面积分在空间坐标的正交变换下的一个计算公式。
The formula of reliability index is calculated in the origin space directly, so derivation and orthogonal transformation are avoided.
所用的可靠度计算公式直接在基本变量空间中求解，避免了繁琐的求偏导数和正交变换工作。
The space decomposition method of orthogonal packing of rectangles was analyzed briefly. Basic strategies of group, ordering rules, and location rules of packing were proposed.
并且简要分析了矩形正交布局的空间分解方法，提出了群组的基本策略以及布局的定序规则和定位规则。
A timing and frequency synchronization scheme based on FH sequence is proposed for the free space optical communication Orthogonal frequency Division Multiplexing (FSO-OFDM).
提出了一种基于FH序列的自由空间光通信多载波调制(FSO - OFDM)时间频率同步方案。
For any orthogonal vectors in the uncorrelated projection space, the obtained features in the original space are statistically uncorrelated.
对于无相关投影空间中的任何正交矢量集，其在原空间中的特征统计无关。
Besides, the author gives the necessary and sufficient conditions for the two generating subspaces to be orthogonal complement spaces in a unitary space and certain corollaries.
在此基础上，得到了酉空间中两个生成子空间互为正交补空间的充要条件及其若干推论。
In each times of orthogonal design, the experimental points which detect the design space are generated according to the orthogonal table around a central point and the range o.
每一轮正交设计中，探索设计空间的试验点依据正交表围绕一个中心点产生，设计变量的取值范围逐渐减小。
Spatial cable truss structures are composed of orthogonal prestressed cable trusses which combines prestress technology with space grid structures.
索网架结构将预应力技术与网架技术融为一体，由正交正放预应力索桁架组成。
The real symmetric matrix, the diagonal matrix and the orthogonal basis of n-dimensional Euclidean space are studied.
研究实对称矩阵、对角矩阵以及欧氏空间的规范正交基。
Therefore, the orthogonal vector techniques can be applied to the LPEF coefficient matrix space for spectral estimation.
在系数阵空间同样存在正交矢量谱估计方法。
Two coherent signals with different primary phases radiated by two orthogonal in-space linear polarization antenna elements form an elliptical polarization wave.
两个初相不同的相参信号由两个在空间上正交的线极化天线单元辐射，将形成椭圆极化波。
The diagnosis accuracy and convergence speed of the algorithm are further improved by orthogonal experiment and limiting search space.
通过正交实验和缩小搜索空间的方法，进一步提高了诊断正确率和优化收敛速度。
Using phase space empirical orthogonal function method, the characteristics of the rain fall and temperature variations and their hierarchical structures are analyzed in Sichuan.
应用相空间经验正交展开方法，分析了四川降水、温度局地气候变化的主要特征及与其层次结构的关系。
To obtain sample space used to establish the nonlinear regression model, the FEM simulation tests were arranged with the methods of orthogonal and random experimental design.
基于正交和随机方法安排了有限元仿真试验，获得了用于非线性电磁建模的样本空间。
Cylindrical orthogonal single-layer lattice shell structures is a new type of space structures.
单层柱面正交异型网壳是一种新型的网壳形式。
This letter present a differential space-frequency coded orthogonal frequency-division multiplexing (OFDM) scheme over frequency-selective fading channels.
本文提出了频率选择性衰变信道中采用了差分空频编码的正交频分复用(OFDM)传输方法。
Finally, the satisfiability of a SAT problem is verified by the covering of orthogonal clause group on the whole assignment space.
最后，根据正交子句组对整个赋值空间的覆盖情况来判断SAT是否满足。
Based on the minimizing vector theorem of the fuzzy inner product space, the pseudo fuzzy orthogonal vector is defined and the projected theorem of the fuzzy inner product space is testified.
在模糊内积空间的极小化向量定理基础上，给出了向量拟模糊正交定义，并在模糊内积空间中证明了投影定理。
The idea of orthogonal expansion and sequence decomposition in random space is discussed firstly.
文中首先论述了随机函数空间中的正交展开与次序正交展开概念。
By means of orthogonal experiment, the effects of noise, visibility and fringe density on the measuring accuracy of fringe direction and space are analysed in detail.
采取正交实验手段，全面分析了噪声、条纹对比度和密度对条纹方向及间距测量精度的影响。
Orthogonal linear dispersive space time code can also be used as an adaptive one for different application requirement.
根据不同的传输需求，正交线性空时弥散码的形式还可以灵活变化。
By introducing a group of function orthogonal basis into the input space, the input functions and the network weight functions are expressed in the expansion form.
在输入空间中引入一组函数正交基，将输入函数和网络权函数表示为该组正交基的展开形式，利用基函数的正交性简化过程神经元聚合运算。
Focusing on the problem that existing linear dispersion (LD) space-time codes have a high encoding and decoding complexity, a type of orthogonal linear dispersion (OLD) space-time codes is proposed.
针对多输入多输出系统中现有的线性分散(LD)空时码编、解码复杂度高的问题，提出了一类正交线性分散(old)空时编码。
Orthogonal transmit diversity (OTD) and space-time spreading (STS) have been included in the 3gpp2 standard, while space-time transmit diversity (STTD) is one part of the 3gpp standard.
包括应用在3gpp 2标准中正交传输分集(otd)和空时扩频(STS)，另外空时传书分集作为3gpp传输标准的一部分。
In this paper, the orthogonal projection approximation subspace tracking (OPAST) is employed for channel estimation and space-time multiuser detection in space-time block coded MIMO system.
文章提出在空时分组编码的MIMO系统中利用OPAST这种子空间追踪算法进行盲空时多用户检测。
To optimise the available space, light and views a non-orthogonal geometry was used in the design.
为了优化可用空间、光线和视野，设计中采用了非正交的几何形态。
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