It has been proved in reality that a PLCC based on spreading spectrum modulation and demodulation can achieve a higher communicating rate and a lower bit error rate.
实践证明，以扩频调制、解调为基础的电力线载波通信方案可获得较高的通信速率和较低的误码率。
During modulation and demodulation, filter is an important step.
调制解调过程中，滤波是一个必不可少的环节。
This paper also touches upon the features of differential modulation and demodulation.
分析阐述了差分调制与解调的特点。
Study on the communication scheme of signal modulation and demodulation based on serial interface;
介绍了一种基于嵌入式网关的串行接口通讯的设计方案。
The technology of the modulation and demodulation is the important means of the modern communication.
调制解调技术是实现现代通信的重要手段。
This thesis studied the modulation and demodulation technology of CDMA by comparing several technologies.
本文主要研究了CDMA技术中调制解调方法的选取与比较。
The interface circuit of ST7536 and power line finishes the modulation and demodulation of digital signal.
ST7536实现系统与电力线的接口，完成数字信号的调制与解调；
This paper introduces a method of FSK modulation and demodulation using CMOS phase locked-loop chip CD4046.
文章介绍了一种利用CMOS锁相环芯片CD 4046实现FSK信号调制与解调的方法。
Therefore, the study of all-digital QPSK modulation and demodulation based on FPGA has important significance.
因此，基于FPGA的全数字QPSK调制解调的研究具有重要的意义。
The technology of modulation and demodulation is one of the hotspot research in Optical Wireless Communication.
调制解调技术一直是光无线通信领域中的研究热点之一。
The research method is using VC programming to realize the modulation and demodulation of the signal by audio-card.
本文研究的方法是通过VC编程实现用声卡对信号的调制解调。
Chapter 2 introduces the principle of the MSK modulation and demodulation system and gives the corresponding structure.
第二章介绍了MSK调制解调原理，给出调制和解调的结构。
Optical modulation and demodulation implementation scheme in mobile atmospheric laser communication system are designed.
论文设计了移动大气激光通信系统中的光信号调制解调的实现方案。
This paper deals with the possibility for modulation and demodulation via power line, the particular transferring medium.
本文分析了在电力线这一特殊介质中由调制解调实现信息传送的可能性和意义。
The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze.
载波相位噪声对QPS K调制解调的影响是不可忽略的，也是难以分析的。
Based on the analyses of point to point millimeter wave communication system, we study and design the modulation and demodulation.
在分析毫米波点对点通信系统的基础上，研究和设计了其中的调制解调部分。
The phase-lock technique is widely used in many fields, such as modulation and demodulation circuit and frequency synthesizer circuit.
锁相技术在调制和解调、频率合成电路等很多领域应用极其广泛。
TWACS is a new valuable communication technology for distribution networks, which has special principle of modulation and demodulation.
双向工频通信技术(TWACS)是一种基于电力配电网络的新型通信技术，具有独特的调制解调机理。
Paper focuses on the use of all-digital technology design GMSK modem for a more extensive use of GMSK modulation and demodulation technology.
论文重点研究利用全数字化技术设计gmsk调制解调器，以便更广泛地使用gmsk调制解调技术。
The significance for this paper is to realize digitized modulation and demodulation by means of the software. It is based on the audio-card of PC.
本文的意义在于采用软件方法实现了数字化调制与解调，它是基于PC机声卡来完成的。
It also studies the algorithms of FSK, MSK, GMSK modulation and demodulation mode, and summarizes the general the software modulation and demodulation algorithm.
进行了FSK,MSK和GMSK调制解调的算法的研究，并在此基础上总结了部分数字信号调制的通用的算法。
Both the modulation and demodulation techniques and the coding techniques have been involved in the system, and have been combined by TCM to improve the performance.
它涉及了调制解调技术、编解码技术两大关键技术，并采用TCM技术将两者结合起来，使得系统性能进一步提高。
Two Way Automatic communication System (TWACS) is a new valuable communication technology for distribution networks, which has special of modulation and demodulation.
双向工频通信技术(TWACS)是一种基于电力配电网络的新型通信技术，具有独特的调制解调机理。
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM, FM, SSB, 2ASK, 2FSK, 2PSK, 2QPSK.
通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
TWACS is a new communication technology based on distribution networks, which used special modulation and demodulation to cross transformer without additional equipment.
TWACS是一种基于配电网络的新型通讯技术，它利用独特的调制解调技术可以无需外加设备穿越变压器进行跨区域通讯。
In this paper, an experimental CSK circuit using Chua s circuit with the whole modulation and demodulation process under changeable communication channel gain is presented.
文章给出了信道增益变化下利用蔡氏电路的混沌信号进行的包括信号调制和解调完整过程的混沌键控通信实验电路。
This paper discusses the theory and the realization approach of BOC modulation and demodulation in satellite navigation system, and focuses on the BOC code tracking technology.
讨论了卫星导航中BOC调制解调的原理和实现方法，并着重研究了接收机的码跟踪技术。
Then, the paper introduces the math module and achieving method of software modulation and demodulation of common digital modulating signals used in telecontrol & telemetry system.
接着介绍了遥控遥测常用的数字调制信号的软件调制解调的数学模型和实现方法。
W78E52B is used as a modem control MCU chip, FX589 as GMSK modulation and demodulation chip, the design and realization of the modem. The circuit is simple, reliable and small size.
利用W78E52B单片机作为调制解调器的控制芯片，FX589作为GMSK调制解调芯片，设计并实现了调制解调器。
W78E52B is used as a modem control MCU chip, FX589 as GMSK modulation and demodulation chip, the design and realization of the modem. The circuit is simple, reliable and small size.
利用W78E52B单片机作为调制解调器的控制芯片，FX589作为GMSK调制解调芯片，设计并实现了调制解调器。
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