围绕多电平变换器，新型电路拓扑及相关调制策略层出不穷。
Novel topologies and modulation strategies concerning multilevel converters are emerging continuously.
实验结果表明，这两种过调制策略能提高输出电压的基波幅值。
An increase in the magnitude of fundamental output voltage was verified by experiments.
其次，采用系统参数开关调制策略，研究了两个超混沌电路的控制问题。
In the second place, controlling using strategy of system parameter switching modulation in two hyperchaotic circuits is studied.
仿真和实验结果与理论分析一致，证明了该新型调制策略的可行性和优越性。
The simulation and experiment results are found to be mostly in agreement with the presented theories, whereby the new modulation strategy is feasible and superior in its performances.
对其中的关键技术：干扰辨识、自适应调制策略和信道质量估计进行了详细的讨论。
The key technology in it, such as interference discrimination, self-adaptive modulation strategy and channel quality estimation are discussed in this paper particularly.
分析了传统矩阵变换器空间矢量调制策略，提出一种新型的矩阵变换器电流控制策略。
A current control strategy of matrix converter based on conventional space vector control is proposed.
仿真结果验证了组合拓扑结构及组合调制策略的有效性，为多电平逆变器组合拓扑结构的实际应用奠定了基础。
The simulation results proved that the validity of hybrid structure and corresponding modulation strategies, it lays the foundation of practical application on hybrid multilevel inverter structure.
同时，基于传统的应用于多电平逆变器的多载波spwm调制策略，提出了对应于组合拓扑结构的组合调制策略。
At the same time, based on conventional modulation strategies-multi-carrier SPWM applied on multilevel inverter, hybrid modulation strategies are introduced corresponding to hybrid structure.
导出了矩阵变换器的交-交直接变换控制规律和双空间矢量PWM调制策略，建立了交-交直接变换控制方式下矩阵变换器的数学模型。
The AC-AC direct transformation control and the double-space-vector PWM scheme of the matrix converter are deduced, mathematic model of space vector modulation (SVM) matrix converter is built.
通过对其换流过程的分析，提出了采用谐振开关控制，箝位开关控制的电流滞环控制的调制方式的策略。
By analyzing the process of the inversion, the control strategy of resonant switch and clamped switch modulation with current hysteresis control is discussed.
空间矢量脉宽调制和双向开关多步换流方式是矩阵式变换器的基本控制策略。
Space vector pulse width modulation(SVPWM) and multi-step commutation method of bi-directional switches are the basic control strategies of the matrix converter.
控制策略选用的是同相载波层叠调制，并且利用DSP的EPWM模块进行了数字化的实现。
Phase disposition modulation is selected as control strategy, which is digitally realized by EPWM module of DSP.
提出一种改进的基于采样-保持策略的电流三态调制开关功放。
An improved current-controlled tristate switching power amplifier based on sample-hold strategy is proposed in this paper.
正弦脉宽调制（SPWM）控制策略，采用建议的逆变器转换器来实现良好的动态调节。
The sinusoidal pulse-width modulation (SPWM) control strategy is employed in the inverter of proposed converter to achieve well dynamic regulation.
接下来，本文重点分析了基于矢量调制的组合控制策略，即将矩阵变换器的空间矢量脉宽调制和电动机转子磁场矢量控制有机结合的控制方法。
Next, the mix control strategy were analyzed in detail, which is the control method of combining the space vector pulse width modulation and the rotor magnetic filed directional control.
从通信系统的角度分析了汽车载波通信系统应该采取的策略，包括有信号的编码、解码，调制、解调，及接收端策略。
Analyzing the automobile carrier communication system from the communication point, including signal coding, decoding, modulating and demodulating and the receiver strategy.
重点分析了整流器和逆变器的协调控制策略，始终保持SPWM高调制度，达到励磁电压调节的快速响应和高分辨率。
The concerted control strategy of rectifier and inverter is analyzed to keep high modulation degree of SPWM, which achieves quick response and high resolution of excitation voltage regulation.
为了实现这种控制策略并把脉冲宽度调制(PWM)波送到相应的开关，采用了数字信号处理技术(dsp)和通用逻辑阵列技术(GAL)。
In order to implement this strategy and deliver the PWM pulses to the appropriate switches, digital signal processor (DSP) and generic array logic (GAL) are used.
该文介绍了一种采用脉冲密度调制(PDM)控制策略的串联谐振型塑料薄膜表面处理电源的研制。
This paper presents a pulse density modulated (PDM) series resonant inverter developed for plastic film surface treater. The use of the PDM inverter enables the constant frequency and voltage.
为了解决这个问题，提出了一种新的频率估计算法，采用扩频调制信息消除策略和分段相关FFT频谱分析技术实现频偏精确估计。
To solve this problem, a new method of frequency offset estimation is proposed. This method adopts modulated data elimination technique and the segmental correlation FFT algorithm.
在本文使用的控制策略中，并联部分由PI控制和定时滞环比较PW M控制组成，而串联部分的控制则采用三角载波调制的PWM控制。
The parallel part control consists of a Proportion-Integral (PI) control and a regular time hysteresis PWM control. The Series part control adopts a triangle wine-linear PWM control.
第二种控制策略中，输入电流矢量根据输入电压正、负序成分进行动态调制。
In the second one, the input current displacement Angle is dynamically modulated as a function of positive-and negative-sequence components of the input voltages.
职业适应期则强调制定切实可行的策略、不断反省和修正职业生涯目标等。
During the period of vocational adjustment, they should focus on the practicable strategies, constantly reflect on and revise their car…
职业适应期则强调制定切实可行的策略、不断反省和修正职业生涯目标等。
During the period of vocational adjustment, they should focus on the practicable strategies, constantly reflect on and revise their car…
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