It considers switching among three transmission modes with bit-interleaved convolutional coder : space multiplexing space diversity and the combination mode of multiplexing and diversity .

该方案在以下三种发射模式间进行选择： 空间复用、空间 分集和复用/分集的混合模式。

The switching functions are selected in new power control switching table according to the position of source voltage space vector and input voltage space vector of rectifier required . This paper gives the design method of power controller and voltage controller .

根据电源电压 空间矢量位置和功率控制所需整流器输入电压空间矢量位置，在新的功率控制 开关表选择开关函数，给出了系统的功率控制器和电压控制器的设计方法。

Fixed switching frequency and low torque ripple are obtained using space vector modulation .

利用 空间矢量调制可以获得固定 开关频率且转矩脉动较小。

The resulting feedback amplification matrix for the switching regulators designed by the large signal method guarantees a satisfactory stability region in the state space and meets the requirements of large damping on transient responses with smaller feedback control energy .

这一大信号设计方法可使 开关稳压电源有较满意的局部稳定 域和瞬态响应，而所需控制能量较小。

The balancing control scheme of capacitor neutral point voltage was presented based on the proposed SVPWM algorithm by adjusting switching point of space vectors .

以该算法为基础，通过调整 空间矢量 切换点的位置，给出了电容中点电压平衡控制方案。

Technique of Minimum Switching Losses PWM Based on Voltage Space Vector

基于 空间电压矢量的最小 开关损耗PWM技术

Based on the analysis three single-port 1-dimension 5-element pattern reconfigurable Yagi patch antennas are designed . By switching the states of the parasitic elements the radiation beams can scan in the E-plane in the upper space .

在此基础上，设计了三个单端口馈电的方向图可重构五元微带八木天线，通过 开关调节寄生贴片的状态，可使天线在E面上半 空间实现波束连续扫描。

In this paper a low noise multiplexer electronic switching for space sweep system is described .

本文介绍了一种用于 空间扫描系统的低噪声多路电子 开关 电路。

To optimize the signaling flow one should develop the switching space of optimization fully and reduce the unnecessary signaling message in the major of switch and transmission .

立足自身交换维护专业，充分挖掘 核心 交换侧的优化 空间，减少不必要的信令消息，以优化信令流程。

On the other hand the switching frequency of the inverter is fixed based on the application of the space vector PWM ( SVPWM ) .

同时由于采用了 空间电压矢量调制，稳定了逆变器的 开关频率。

As the driving signals of IPM are low active the switching of space voltage vector is redesigned .

针对 IPM驱动信号低有效的 实际情况，设计了 空间电压矢量 选择表。

Integrated On-board Switching Mechanism Specific to Space Information Network

面向 空间信息网络的一体化的星上 交换机制

Reduction of audible switching noise in induction motor drives using random position space vector PWM

异步电机用随机定位 空间矢量PWM降低 开关噪声

Six active switching state vectors come from the inverter output voltages . These six active switching vectors and two zero vectors compose a set of voltage space vectors with same amplitude in different phase to approach circle rotating flux .

由三相电压源型逆变器输出电压波形得到六个有效开关状态矢量，这六个 开关矢量和两个零矢量合成一组等幅不同相的电压 空间矢量，去逼近圆形旋转磁场。

The theoretical analysis and result of simulation indicate that the two-phase modulation reduces the switching losses 50 % relative to the quasi-optimum and the Space Vector Modulation and Overmodulation can generate higher voltages with low total harmonic distortion .

分析表明二相调制方法相对于准优化方法减少 开关损耗近30%， 空间矢量的调制与过调制可以大大的提高直流母线电压的利用率。

Then in order to overcome the disadvantages such as torque and flux ripple unfixed switching frequency and flux identification error at lower speed range the thesis presents a modified flux identification method space vector module and fuzzy speed regulator to improve the DTC performance .

然后针对其低频磁链辨识不准、转矩和磁链脉动大、电力电子 器件 开关 频率不固定等缺点，论文通过改进磁链辨识方法、利用 空间矢量调制和模糊速度调节器对传统直接转矩控制技术进行了改进。

Limit cycles in PWM switching power converters and state space averaging

PWM 开关变换器的极限环与状态 空间平均法

Time - Switching Space - ime Multiuser Detection for CDMA Systems

CDMA系统时间 切换 空&时多用户检测

In order to search for the optimizing solutions of tool switching problem effectively a beam search based heuristic algorithm is put forward for formulating heuristic solution space of the problem .

为了有效地搜索到刀具 交换问题的优化 解，本文提出了基于定向搜索的启发式算法的求解方法。

Research on a Novel Low Switching Loss Space Vector PWM Method for the NC Machine Tools Drive System

机床主轴进给驱动系统新型 脉宽 调制方法研究

In order to make practical conduct time equal to ideal given time of switching devices a dead-time compensation method based on time was proposed simple arithmetic was obtained with the characteristic of space vector PWM ( SVPWM ) .

为保证 开关管实际开通时间与理想给定开通时间相等，提出了死区的时间补偿方法，结合 SVPWM的特点，得到了简化算式。

Space-vector modulation schemes for the 5 level NPC / H bridge inverters are elaborated : A novel flexible 3-segment switching sequence for the space vector modulation ( SVM ) of high-power multilevel converters .

重点介绍了五电平NPC/H桥逆变电路的空间矢量调制方法。这是一种适用于大功率多电平逆变器的，基于3段 开关顺序设计的 空间矢量调制方案。

PWM technologies is retrospected simply and the choice mode of switching vectors of the space vector PWM and the formulas which are used to calculate the vector operation time of the space vector PWM are provided .

简单介绍了PWM技术，给出了连续 空间矢量PWM方式 开关矢量选择及作用时间计算公式。

With the Continuous development of Information transmission and switching technology Space laser communication technologies become a field of optical communications research focus . Space laser communication technologies have the advantages of high information content high transfer rate and strong confidentiality channel .

随着信息传输和 交换技术不断的飞跃发展， 空间激光通信技术以其信息容量大、传输速率高、信道隐蔽性好等一系列优点，成为当今光通信领域的一个研究热点。

Partial Label Switching ( PLS ) technology was introduced which utilized label space efficiently by distributing labels only to those frequently used route entries and compared the performance of PLS to the performance of MPLS by simulation .

PLS协议通过只给经常使用的路由表项分配标记，可以有效利用标记 空间，同时保持与 MPLS的兼容性。

The routing and switching as key components in the ISIN are responsible for the construction of space data link security monitoring and dispatch of various applications .

在综合卫星信息网的有机构成中，由于路由 交换部件担负着 星间数据链路的实现、各种数据的安全监测与分发等重任，从而成为网络中关键的一个环节。

Simulation Analysis of Partial Label Switching Based on Label Space Constraint

标记 受限下部分标记 交换协议的仿真分析

A new power control switching table is set up according to new dividing of input voltage space and resultant voltage space vectors .

依据新的输入电压 空间划分及合成空间矢量，确定了新的功率控制 开关表。