• 针对传统超前-滞后型数字相环实现同步速度较慢缺点提出了一种基于步进和量化调整的数字锁相快速同步方法

    Traditional Lag-Lead synchronous DPLL shortcomings slow. In order to solve this problem, proposed a method for FPGA-based realization method of fast bit synchronization.

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  • 着重分析了电流参考信号超前(滞后角)、系统参数驱动方式对无刷直流电动机系统动态性能影响

    The influence of the leading Angle (lagging Angle) of the current reference signal the parameters and drive mode of the system to the dynamic characteristics are analyzed.

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  • 本文研究了既有滞后量又超前中立常系数微分方程的振动性,得到了其振动的几个充分条件

    In this paper, we have studied the oscillation of the first order neutral functional differential equations with delay and advanced argument, obtained, some sufficient conditions extended and impoved.

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  • 着重研究了隔离环稳定回路的一种校正方案,通过采用超前滞后网络横滚隔离光纤联惯导稳定回路进行校正。

    The approach is called lead and lag correction which has been adopted to correct the stabilization loop of roll-isolated fiber optical gyro strap-down inertial navigation system (RIFOGSINS).

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  • 重点讨论超前滞后实现零电压开关差异以及副边空比丢失原因

    The difference of leading switches and lagging switches to realize the zero-voltage switching and the reason of duty-cycle loss is emphatically argued.

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  • 为了实现软开关引入超前滞后概念

    The concept of leading switches and lagging switches is introduced to realize soft-switching.

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  • 研制电流模式电压电流开关TIG焊机超前实现电压开关,滞后臂实现零电流开关。

    A current mode zero-voltage and zero-current switching (ZVZCS) inverter TIG welding machine is developed in this paper, which realizes ZVS for the leading leg and ZCS for the lagging leg.

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  • 段祺华想法过于超前当时政策仍然滞后

    The problem was that Duan's plan was ahead of its time, while official policy at the time still lagged behind.

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  • 本文讨论了如何利用MATLAB控制系统工具箱设计串联超前滞后校正装置,校正后的控制系统进行了仿真

    In this paper we will discuss how to use Control System Toolbox to design a cascade lead-Jag compensator, to run and to simulate it's program under MATLAB.

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  • 调整超前滞后环节补偿角度使信号相位相对时滞作用反向偏移,从而削弱时滞对系统动态性能影响

    The angle compensation provided by lead and lag component is contrary to the angle excursion caused by time delay. So the influence of time delay will be decreased.

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  • 这些公式适用级及多级串联超前滞后以及滞后——超前各种校正设计

    These formula are suitable for various designs of correctors with single -, multi-stage series in leading, lagging and lagging-leading.

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  • 本文适应均衡输入信号超前滞后期待信号均衡器收敛特性造成的影响作了理论上的分析

    This paper analyzes the influence on the equalizer's convergent characteristic in self-adaptive equalization when the input signal exceeds or lags behind the expected signal.

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  • P ID校正着重加强微分超前调节作用,缓解系统相位滞后问题,从而使系统得到较好的稳定度响应速度

    It focuses on differentiation in PID adjustment, amends the phase lag problem and gets better systematic stability and response speed.

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  • 推导出液压伺服系统元件传递函数,并由此建立位置伺服系统的数学模型设计超前滞后校正控制器

    Derivates the transfer function of elements of the servo system, constructed the mathematic model of the position servo system and advance-lag revising controller was designed.

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  • 目前延迟系统超前滞后同步研究不是很多方面研究做为以后研究工作的重点。

    Currently, the anticipated synchronization and lag synchronization in the time-delayed systems are not a lot, for the research in this area can be used as the focus of future research work.

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  • 设计超前滞后滞后超前PID校正器,形式相同实用价值大。

    The designed lead, lag, lag-lead and PID controllers have same form and extensive practical value.

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  • 本文实现超前电压开通滞后电流关断核心元器件进行了参数优化设计

    For the parameter optimization. this article also analyzes the core components of achieving zero-voltage turn-on and ultra-forearm arm lag zero current shutdown.

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  • 本文实现超前电压开通滞后电流关断核心元器件进行了参数优化设计

    For the parameter optimization. this article also analyzes the core components of achieving zero-voltage turn-on and ultra-forearm arm lag zero current shutdown.

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