space time的例句大全

Space time coding is one of the effective ways to achieve these benefits of MIMO system.

获得MIMO系统这些好处的一个行之有效的方法就是空时编码。

Vertical Layered Space Time Coding Based on Rotational Invariant Subspace

基于旋转不变子空间的垂直分层空时码

Simulation shows that our scheme achieves the performance similar to some known optimal space time coding scheme.

仿真结果表明，这种编码方案的性能与某些已知的最优编码方案基本相同。

Moreover, detection algorithms in a layered space time coding system including maximum likelihood detection, line detection and successive interference cancellation have been analyzed.

在接收端，基于分层空时码的结构，比较了最大似然检测、线性检测、干扰消除检测和一些改进算法的性能和复杂度。

A subspace-based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing ( STC-OFDM) system with two transmit antennas and two receive antennas.

针对使用2个发射天线和2个接收天线并且采用循环前缀的空时编码正交频分复用系统（STC-OFDM），提出了一种信道盲估计算法，并给出信道可被辨识的条件。

An improved space time coding method for the simple situation ( 4PSK, 4 states) is given in this paper. The method improves the coding gain without impairing the diversity gain of the system.

提出了简单情况下（4-PSK、4状态）的一种改进的空时编码方案，该方法在保证空时编码的分集增益的前提下，进一步提高了系统的编码增益。

Space time yield of methanol and conversion of gas increase with pressure.

随着压力的升高，反应的时空产率和气体的转化率都在增加。

In this dissertation, the estimation algorithms of time-varying frequency selective channel in modern wireless communication systems including WCDMA uplink, WCDMA downlink with space time transmit diversity and MIMO system are investigated.

本文主要研究在现代无线移动通信系统中如何估计同时存在频率选择性和时间选择性衰落的信道，包括WCDMA上行链路，采用双天线空时发射分集的WCDMA下行链路和MIMO系统。

Error Estimates of Space Time Finite Element Methods for a Class of Nonlinear Problems

一类非线性问题的时空有限元方法的误差估计

Additionally, performance of optimized supply chain input/ output pipeline system is analyzed by using space time graph in the area of throughput rate, efficiency and speedup ratio.

同时，以时-空图为分析工具，对采用重叠技术优化后的供应链输入/输出系统性能在吞吐率、效率、加速比方面进行了评价研究。

A New System Integrated of Communication and Radiolocation with Four Antennas Space time Modulation

一种新颖的四天线时空调制通信定位综合化系统

A New Integrated Spread-Spectrum System of Communication and Wireless Location with Eight Phases Space Time Modulation

一种新型八相时空调制扩频通信定位综合系统

Space time coded modulation has been shown to efficiently use transmits diversity in Raleigh fading channel. Then, the investigation indicates that decreasing the amounts of subbands, and utilizing the diversity characteristic adequately in frequency domain of OFDM is an effective approach to reduce the performance degradation.

文中接着通过研究表明，在子带自适应编码调制中，减少选取子带的个数，充分利用OFDM频域上的分集特性是一种可以降低信道时变带来性能恶化的有效途径。

The problem of datum about combined algorithms is studied in detail, the coordinate reference datum of basic space time reference system is analyzed, some algebraic constraints used to define the reference datum are studied in detail. 4.

研究了联合解算中的基准问题，分析了基本时空参考系的坐标参考基准，系统研究了定义参考基准的代数约束。

Equivalent mass is an common characteristic of space time structure of any physical quantity.

等效质量是所有物理量的时空结构所具有的一种共性物理属性。

Seismic gap and ordered space time structure before the Haicheng earthquake

海城地震前的空区和有序时空结构

The space time structure of annual temperature variation is mostly due to winter temperature anomalies.

年平均气温变化的时空特征主要由冬季气温的贡献所致。

The space time variation of soil water content has been predicted based on BP neural network.

根据一维水平入渗实验5个时刻的土壤含水量剖面，运用BP网络，对土壤含水量的时空变化进行了预测；

It includes rules of space time discretization, theory of spatial interaction process and methods of timer control.

对空间动态模型进行了形式化分析，给出了空间时间离散状态表达、空间交互过程和时间反馈控制方法的理论描述。

Thermal radiation of quasi static ( 1+ 1) dimensional space time

（1+1）维准静态时空的热辐射