QPSK as an advanced digital modulation technique is fit for the digital satellite communication system well.
QPSK作为一种先进的数字调制方式，特别适用于数字卫星通信系统。
As the core mobile communications technology, one of the digital modulation technique is to achieve high-speed, highly efficient mobile communication system and an important guarantee.
而作为移动通信核心技术之一的数字调制技术是实现高速、高效的移动通信系统的重要保证。
This paper takes modulation technique as main hint, summarizes the essential principle of analogue modulation technology, optical modulation and digital modulation technology.
以调制技术为主线，介绍有线电视系统中模拟调制技术、光调制技术和数字调制技术的基本原理。
Direct digital synthesis (DDS) is an all digital frequency synthesis technique. Because of its special theory and construction, it has many kinds of modulation capability.
直接数字式频率合成(DDS)技术是一种全数字频率合成技术，其特殊的原理和结构使它具有多种调制能力。
The pulse position modulation (PPM) technique is widely used in the field of ultra-wideband wireless digital communication.
时间脉冲位置调制(PPM)技术在超宽带无线数字通信领域得到了广泛应用。
This paper discusses the technique of waveform coding for digital modulation and presents the idea of waveform coding based on biorthogonal wavelets.
讨论了数字调制技术中的波形成形问题，提出利用双正交子波实现波形成形的思想。
Data bits are allocated to the channels through a highly efficient modulation technique that converts digital data to electrical signal pulses.
数据通过一种高效的调制技术(即把数字数据变成电信号脉冲)分配给各个信道。
The two-frequency serrodyne modulation technique can be used in the digital R-FOG system.
双频率锯齿波组合调制技术可应用于谐振式光纤陀螺数字处理系统。
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
脉冲宽度调制或PWM，是通过数字均值获得模拟结果的技术。
In this paper, the technique is applied to a digital amplitude modulation broadcasting (DAMB) system with satisfactory results.
该文把此技巧应用到数字调幅广播(DAMB)系统，取得了令人满意的结果。
There are two technique problems for Terrestrial digital TV transmitter: one is the channel coding modulation technique whch is dependent of TV system;
数字地面电视发射机有两大技术难点：一是与制式有关的信道编码调制技术；
Modulation technique is very meaningful for the digital data transmission efficiency.
调制技术对数据传输效率有重要的意义。
Modulation technique is very meaningful for the digital data transmission efficiency.
调制技术对数据传输效率有重要的意义。
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