查询词典 pulse-time modulation

The MAX483MJA is an integrated Pulse Width Modulation controller and Sense FET specifically designed for Quasi-resonant off-line Switch Mode Power Supplies with minimal external components.

该MAX483MJA是一家综合脉冲宽度调制控制器和感场效应管专为准谐振离线开关电源设计的最少的外部元件。

Following that, we implement the algorithms of FOC, space vector pulse-width modulation, and speed control using the digital signal processor. Regarding to the influence of controller parameters on dynamic response of the motor speed, this thesis proposes the speed control of PMSM using self-tuning fuzzy technique. By the self-tuning technique, the on-line fuzzy logic controller output can give better speed response under the load disturbances or variable speed commands.

本文首先使用数位讯号处理器完成磁场导向控制、空间向量脉波宽度调变及速度控制之策略，针对控制器参数对系统动态响应之影响，提出采用自调式模糊控制器於速度控制回路，藉由自调式机制，线上调整模糊控制器之参数，使PMSM在变动负载及速度命令下有较佳之动态响应，达到提升系统响应及强健性之目的。

Pulse width modulation and phase locked loop are adopted to reduce the complexity of clock recovery circuits.

采用PWM技术和PLL结构，降低了CRC的复杂程度。

Including setting up system platform and measuring structure of the rigidity of pretension spring of the solenoid valve, designing the dynamic electric-current driver on the basis of power sink principal, variable pulse width modulation of voltage boosting and inversion technology, realizing the intelligence controlover the control parameters, satisfying the diversity requirement towards the dynamic feature experiment of the solenoid valve; furthermore, testing system software is developed, and filtering is conducted over the signals of armature displacement response and driving current educed from the experiment using wavelet analysis technology.

构建了系统台架和电磁阀预紧弹簧刚度测量机构，设计了基于功率吸收原理和可变脉宽升压逆变技术的电磁阀动态电流驱动器，实现了对驱动器参数的智能控制，满足了对电磁阀动态特性试验的多样性要求。开发了测试系统软件，提出了基于小波分析的方法，对试验所得衔铁位移响应信号和驱动电流信号进行了滤波。

A novel fixed length digital pulse interval modulation for optical wireless communication .

无线光通信中的定长数字脉冲间隔调制。

The symbol length of digital pulse interval modulation is variable, so there are some difficulties to analyze error performances of Turbo coded DPIM.

数字脉冲间隔调制的符号长度变化不固定，因而分析该调制方式在Turbo码编码下的差错性能存在困难。

Fixed Length Dual-Amplitude Pulse Interval Modulation for Optical Wireless Communications.

无线光通信中的定长双幅度脉冲间隔调制。

This thesis primarily discussed that the construction and principle of Pulse-Code Modulation、transmitter、receiver and proceed the research to fiber-optic phonetic transmission system.

本论文主要讨论了PCM编译码、光发射机和光接收机的结构及原理，而且对光纤语音传输系统进行研究。

Network performance - Tandem encoding limits for 32 Kbit/s Adaptive Differential Pulse-Code Modulation.

网络性能--32 Kbit/s自适应差值脉冲编码调制串联编码限制。

The stereo-audio signal obeys the pulse-code modulation rules and the following audio data rate is derived

立体音频信号遵守脉冲编码调制规则，按如下方法可得音频速率

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。