space time的例句大全

On the Simulations of the Space Time Coding and Its Applications in Space Time Cooperative Communications

空时编码及其应用于空时协作通信技术仿真研究

Space time coding for wideband CDMA systems

宽带CDMA系统中的空时格型编码

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 coding is a channel coding scheme for MIMO system, which combines the merits of the spatial-diversity and time-diversity. It provides both diversity gain and coding gain, which can provide much higher data rate-to-bandwidth ratio than single-antenna system.

空时编码是适合于多天线阵信道的一种编码方案，它综合了空间分集和时间分集的优点，同时提供分集增益和编码增益，能够获得远远高于传统单天线系统的频谱利用率。

The performance of a Multiple Input Multiple Output ( MIMO) system in ideal and non-ideal propagation conditions, which is established using Space Time Coding and Space Division Multiplexing techniques and operates in a wireless indoor environment in the 17 GHz frequency band is discussed.

讨论了MIMO系统在理想和非理想传输条件下的性能，系统工作在无线室内环境17GHz频宽内。

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。

Space Time Finite Element Method for Time Dependent Problems

时间依赖问题的时空有限元法

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。

Super-space Time Harmonic Function and One Class of Nonlinear Parabolic Equations

超空时调和函数与一类非线性抛物方程

A new approach is presented to efficiently solve the three dimensional space time reactor dynamics equation which overcomes the disadvantages of current methods.

为快速求解反应堆三维时空动力学方程，克服已有方法的局限，提出了一种新的求解方法。

Neural network based blind space time channel estimation in antenna array CDMA systems

天线阵CDMA系统中基于神经网络的盲空时信道估计

Space time channel can be described by vector channel impulse response ( VCIR). Estimation of the VCIR is very important for Smart Antenna Systems.

时空信道可以用矢量信道冲激响应（VCIR）来描述，正确估计VCIR是智能天线系统实现的关键技术。

In DS CDMA channels with multipath and multiple access interference, this paper estimates blindly the user channel with extended space time channel model to process the blind MMSE detection.

在多径多址干扰DS CDMA环境中，本文根据空时信号模型，用扩展的盲方法估计用户信道，从而进行盲MMSE检测。

A Full Diversity and Full Rate Space Time Code with Low Decoding Complexity

一种低解码复杂度的全分集全码率空时编码

Performance Analysis of the Zero-Forcing Detection of Threaded Algebraic Space Time Code

纹状代数空时码的迫零检测性能分析

Taking the space time code technology as an example, the system structure of MIMO-OFDM is researched.

以空时编码技术为例，研究了具体的MIMO-OFDM系统结构。

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。

Application Research of Space Time Coding in MIMO-OFDM System

MIMO-OFDM系统中空时编码技术研究和应用

Information Theoretic Analysis of MIMO Wireless Communication Systems and Space Time Coding

MIMO无线通信系统和空时编码的信息论研究