数据调制 meaning in English
data modulation
dmu
Examples
- The design of hfc network management data modulator based on pll
网管数据调制器设计 - Satellite data modulator
卫星数据调制器 - Ofdm ( orthogonal frequency division multiplexing ) is a multi - carrier data modulation technology . though the conception of ofdm was brought forward many years ago , it is only in recent years that people recognize it as an excellent way of high speed , bidirectional , wireless data communication
正交频分复用( ofdm )技术是一种多载波数据调制技术,虽然ofdm的概念已经存在了很长时间,但是直到最近随着多媒体业务的发展,它才被人们认识到是一种高速双向无线数据通信的良好方法。 - The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment . i am responsible for design catv charge and control equipment and test system . the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency . the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part , where the demodulated fsk single is received and well - handled by the cpu unit , decode the unauthorized signals and deliver it to the shut point , shut point make use of capability of wideband anf characteristic of shut , then the signal of illegal customer will be turn off and vice versa , the legal customer can receive the normal signal
前端数据调制器完成对计算机输出的控制信号加密处理,将指令码载送到一指定频率点。终端收费控制器解调出控制信号,送至单片机寻址控制部分。单片机寻址控制部分接收经fsk数据解调器送来的信号,送入cpu单元后,解出不授权信号,然后向关断部分送入信号,关断部分利用pin二极管的宽带工作能力以及关断特性,实现对非授权用户或者非法用户的信号关断,使之不能正常收视,缴费用户进行开通正常收视,达到控制用户通道的管理。 - In the paper , the followings are the pivotal points : 1 the realization of data transfer through pci bus of computer and hpi interface of dsp 2 the realization of modulation with dsp based on dds 3 the realization of code with computer 4 design bootloader of dsp 5 program pci interface board driver the significance of the paper is that it adopts the advanced digital technology to realize data transfer between dsp and computer and complete the modulation through dsp
5pci接口卡驱动程序的设计。本论文研究的意义在于采用了当前通信领域中先进的数字技术来实现dsp与计算机的数据交换，并根据dds原理实现数据的调制输出，而不需要专门的调制芯片。本设计所实现的计算机同dsp的数据交换、利用dds实现数据调制以及自己设计的boot程序都是比较新颖的技术，为dsp在该领域的应用提供了一个成熟的范例。