扩频系统中性能最好的是直接序列扩频的先解扩后解调方式。
Direct sequence spread spectrum (DSSS) and despreading first structure is most advantageous of all kinds of spread spectrum techniques.
混沌键控(CSK)按解调方式通常分为相干解调的CSK与非相干解调的CSK。
Chaos Shift Keying (CSK) is generally divided into two categories by demodulation method as coherent detection CSK and non-coherent ones.
接着详细地介绍了北斗卫星的信号体制，对其调制解调方式作了深入地研究，对电文格式作了说明。
After that, the article introduces the signal system as well as modulation and demodulation of Beidou satellite, next, explain the telegram form elaborately.
此种解调方式具有光路简单，易于与光纤匹配的优点，可以应用在大型建筑中光纤光栅的健康监测。
The demodulation system is simple and compatible with fiber device. It can be used in health monitoring for huge buildings.
针对传统的最小频移键控(MSK)的调制解调方式，提出一种基于甚高速硬件描述语言(VHDL)的数字式MSK调制解调模型。
For the conventional modulation and demodulation of Minimum Frequency Shift Keying (MSK), the new models for modu - lation and demodulation on digital MSK based on VHDL are developed.
初步的线性度试验结果验证了该解调方式的正确性，同时也表明所设计的比较式OCT满足IEC标准规定的0．2级电子式电流互感器的精度要求。
The linear test results show that the signal demodulation is valid and that the accuracy of the OCT proposed is up to the 0.2 class accuracy requirement in IEC60044-8.
调试器和调试信息可用于或存在于所有软件组件中，然而，并不是所有用户都了解调试数据的组成以及数据的存储方式。
The debugger and debug information is available or present in all software components, however, not all users are aware of what the debug data consists of and how the data is stored.
当您使用零调制解调器电缆在两台计算机之间建立直接串行连接时，您的电缆必须按下面清单1中显示的方式连接。
When you use a null modem to make a direct serial connection between two computers, your cable must be wired, as shown in Listing 1 below.
有多种连接方式可供选择，因为标准中并未涵盖零调制解调器连接。
Several wiring layouts are in use, because the null modem connection is not covered by a standard.
原始rs- 232标准只定义了使用调制解调器连接计算机的方式。
The original RS-232 standard only defined the connection of computers with modems.
零调制解调器 (Null modem)是一种使用RS-232串行电缆连接两台计算机的通信方式。
Null modem is a communication method to connect two computers directly using a RS-232 serial cable.
有线遥控是通过专用电缆或动力线作为载波体，对信号用调制解调器传输方式，达到只用少量通道即可实现控制的方法。
Wired remote control is a dedicated cable or power line as a carrier, the signal with modem transmission mode, to achieve a small number of channels can be used to control the method.
它综合了这两种调制方式的优点，具有解调简单、抗干扰特性优良等特点。
It has an excellent characteristic of anti-jamming and the demodulation of it is also comparatively easy.
针对低莱斯因子信道中衰落和码间干扰的影响，提出了带内三重频率分集接收实现方式，给出了采用带内三重频率分集的调制器和解调器的原理框图。
For the influence of fading and ISI on low Rice factor channel, the system adopting diversity technology is presented, and the schematic diagram of the modem adopting diversity technology is given.
哪种方式作为辅助设计行销成长设计出一个部分群众生产是一个主题的设计和调制解调器的故事本书的重点。
The way in which design as an adjunct of marketing has grown out of design as an aspect of mass production is a major theme within the story of modem design and the focus of this book.
这种方式，您可以学习的虚拟空调制解调器电缆连接。
In this way you can emulate virtual null-modem cable connection.
现有解调2fsk信号的方法，大多采用时域解调的方式。
Most of the current demodulation methods of 2fsk signal are in time domain.
针对2DPSK调制方式，提出了通过对相邻两个码元信号求互谱来获取相对相位信息的互谱解调法。
Aimed at 2dpsk modulation, the cross spectra demodulation method that obtains relative phase information through calculating the cross spectra of two neighboring symbol signals is proposed.
介绍AT 89 C51单片机系统与智能调制解调器MODEM之间的接口电路和异步传输方式下的控制程序设计。
Interface circuit and the design of control program in asynchronous transfer mode between AT89C51 single chip microcomputer system and intelligent MODEM are introduced.
用软件无线电技术实现的调制解调灵活性好，可以通过空中下载实现不同的调制方式，从而适应不同的通信体制。
It is flexible for the modulation and demodulation by software, and it may realize different modulation mode through the airborne downloading, therefore it suits the different communication systems.
相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。
Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.
介绍第三代移动通信WCDMA系统的调制技术，包括QPSK 调制和解调的基本原理，以及WCDMA 系统的调制方式。
The modulation technology of the third generation mobile WCDMA system including the QPSK is introduced in this paper, including the QPSK.
着重介绍了扩频地址码的选择及实现、同步方式和解调方法等。
It is emphasized how to select the spread spectrum access code, and how to realize synchronization and modulation etc.
在软件无线电平台上研究并实现了ASK、FSK、QPSK等方式的调制解调算法，并给出了调制解调的流程图和主要部分的程序。
Having realized the modulation and demodulation algorithm of ASK, FSK, QPSK on the software radio platform, and has provided the modulation and demodulation flow chart and the main part procedure.
研究内容主要包括：符号率估计、载波频偏估计、调制方式识别以及盲解调等。
The research contents mainly consist of symbol rate estimation, carrier frequency offset estimation, modulation recognition and blind demodulation.
采用话带调制解调器进行数据信息传输，特别是在接入环路中，具有价格低、方便、灵活的优点，是目前广为人们采用的一种数据传输方式。
Because of its convenient, flexible and of low cost, the voice band modem is widely adopted in digital data transmission, especially in access-loop.
第五章中给出了对各种调制方式的解调模型，成功建立了平方环载波恢复模型。
In chapter 5, demodulation models of many modulation systems are established. Square loop model is established to detect carrier.
第五章中给出了对各种调制方式的解调模型，成功建立了平方环载波恢复模型。
In chapter 5, demodulation models of many modulation systems are established. Square loop model is established to detect carrier.
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