The Application of Full Digital DC Speed Modulation Technology in Mine Elevator 全数字直流调速技术在矿井提升机中的应用
A novel full digital three-phase sinusoidal pulse width modulation ( SPWM) signal generation chip is presented for power electronics. 针对电力电子领域的需要,自行研制了一种新型三相正弦脉宽调制信号产生芯片。
The author makes full use of both the PWM modulation technology and the syntony converting technology. 充分利用了脉冲调制技术(PWM)和谐振变换技术。
The paper presented a full digital frequency converter based on a control algorithm of space vector pulse width modulation ( SVPWM). The theory of SVPWM was discussed in brief. 提出了一种基于空间矢量的PWM算法的全数字化变频器,简要介绍了空间矢量脉宽调制的理论。
In this paper, for full response linear modulation signal, an interpolation criterion has been proposed. 本文对全响应线性调制信号,给出了一个插值准则。
A design of full digital spread spectrum modulation based on software radio 基于软件无线电的全数字扩频调制的实现
To take full advantage of the frequency bands and equipment of VOR, four reforming methods are proposed: ( a) burst transmitting slow space-time modulation compatible to TDMA system; 为充分利用VOR的频段和设备资源,本文提出了四种VOR发射机改造方案:第一是间断发射的慢速时空调制系统;
A new switching strategy of PWM inverter is Presented which can be used at high fundamental PWM voltages. The full theory of 'double modulation' is introduced. 本文提出PWM型逆变器的一种新型开关对策,它用于高基波的电压脉宽调制,并介绍了双调制的完整理论。
Full bridge zero-voltage switch pulse width modulation spot welding inverter power with double loop control 双环控制的全桥软开关点焊电源
Full Digitalized Biploar Double Modulation Wave Control Strategy for Voltage Mode High-Frequency Link Inverter 电压型高频链逆变器的全数字化双极性双调制波控制策略
Design of interpolation filter for all digital RECEIVER-ON the interpolation problem of full response modulation signals 全数字接收机中插值滤波器的设计&全响应线性调制信号的插值问题
A Noncoherent Receiver of Uncoded Full Response Continuous Phase Modulation Signal 全响应CPM信号的一种非相干接收技术
Along with the development of communication technology, demodulation technology as one of the key technologies for communication system develops from the analog to digital modulation and full digital modulation. 随着通信技术的发展,作为通信系统关键技术之一的调制解调技术也由最初的模拟调制向数字调制和全数字调制发展,采用合理高效的调制解调算法对无线通信系统的性能非常重要。
Then the paper introduces the current status and the trend of the wind power generation technology, the developing speed of the direct-drive wind power, the full power and the converted technique. Secondly, analyze the vector control technology and voltage space vector pulse width modulation. 紧接着介绍了风力发电技术的发展现状和趋势,直驱风力发电、全功率并网变流技术因其具有的优势发展迅速。其次,分析矢量控制技术和电压空间矢量脉宽调制技术。
In this paper, a complete application example design is provided, which uses the full MSK digital modulation and demodulation method based on FPGA. 本文提供了一个完整的应用设计实例,采用了全数字化调制解调方法,基于FPGA系统设计出了全数字MSK调制解调器。
In order to realize the full utilization of power converter switching frequency and reduce the influence of harmonics on the system performance, the synchronous modulation seems to be an inevitable choice with the rise of the modulating frequency. 面对牵引变流器大功率低开关频率的特点,为了在充分利用开关频率的同时降低输出谐波对系统性能的影响,同步调制策略将是牵引变流器在一定调制频率下的必然选择。