色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
在载波频率已恢复的情况下给出了IQ正交分量的解调算法。
The demodulation algorithm for IQ components is given under condition that the carrier is recovered.
介绍采用微波混频器的上变频特性实现宽带平方电路的设计方法与具体实现,主要用于高码速率QPS K信号的载波恢复。
An introduction of the design and implementation of a broad-band square circuit is given, which is used to recover the carrier of the high speed QPSK signal.
针对微小卫星测控应答机的体积、重量及其功能灵活性,研究了接收机载波恢复环的实现方法。
The implementation method of the receiver carrier recovery loop of microsatellite affects the volume, weight and function reconfigurability of the transponder.
快速载波和位时钟恢复是突发模式传送系统的一个关键因素。
Rapid carrier and clock recovery is a key technique in burst mode transmission.
载波恢复中高精度的频偏检测与跟踪是高性能锁相位环路实现的必要条件。
High precise measuring and tracking of carrier frequency-deviation is necessary to the realization of a high performance phase locked loop in carrier recovery.
推导并分析了频偏、相偏对通信系统的影响,提出了一种新的基于伪频偏概念的载波恢复算法。
The influences of frequency offset and phase offset on communications are discussed, and then a novel algorithm for recovering the carrier based on the false frequency offset is presented.
发送端传送的数字信号在三种调制方式下均可很好的隐藏于混沌载波中,并在接收端得到正确恢复。
With the three encoding methods, the digital signals sent in transmitting part can be well hidden by chaotic carrier and recovered correctly in the receiver.
最后,通过对误码性能和系统联合锁定时间进行仿真,验证了数字解调器性能,并在FPGA中实现了载波恢复模块。
Finally, the performances of this digital demodulator are tested through the simulation of BER and the system joint lock-time, and a carrier recovery module is implemented in FPGA.
文中分析了同步偏差即定时偏差和载波恢复相差对MPAM和MQAM接收性能的影响。
The influences of timing offset and carrier phase offset on the performances of MPAM and MQAM are analyzed.
本文着重研究全数字QAM接收机中载波恢复环路的设计,采用快慢两个数字环路来进行载波恢复。
The design of the carrier recovery loops in an all-digitized QAM receiver is investigated and two cascaded digital carrier recovery loops are proposed.
本文研究全数字接收机中的同步技术,重点是MPSK信号的载波频偏和相位误差的估计和恢复算法。
This thesis deals with the synchronization technologies for all digital receiver, particularly carrier offset estimation for MPSK signal.
载波频率同步是载波恢复的重要环节之一。
The most important section of carrier recovery subsystem is carrier frequency synchronization.
介绍了一个应用在移动支付系统里的全集成载波时钟恢复电路。
This paper presents a fully integrated carrier clock recovery circuit for a mobile payment application.
本文主要研究MPSK信号的载波频偏和相位误差的估计和恢复算法。
This thesis deals with the algorithms of carrier frequency offset and phase error for MPSK signal.
基于模糊逻辑控制的数字锁相环,用于通信系统中的载波恢复。
Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.
针对直接序列扩频通信中的载波恢复问题,提出了一种基于自适应算法设计的双pll载波跟踪方法。
For the problem of carrier recovery in DS-SS communication, the model of dual PLL is presented, which is designed based on the auto -adapted algorithm.
第四章研究载波恢复算法。
对其中的关键信号处理流程如载波恢复、时序恢复等提供了设计和性能分析。
There are illustrations for designing and analysis for performance of important signal processing steps such as carrier recovery and timing recovery etc.
在对经典载波恢复算法仿真和分析的基础上,采用扫频和DD算法相结合作为全数字解调的载波恢复算法。
Based on the simulation and analysis of classical algorithms, a carrier recovery algorithm which is combination of swept and DD algorithm is adopted in all-digital demodulator.
接收机对信号进行载波恢复并解调,通过时序恢复后进行解码。
In the receiver, the received signal is demodulated after carrier recovery. And the demodulated signal is decoded after timing recovery.
传统的数字信号解调方法存在着载波恢复、符号同步等问题,实现起来较为复杂。
The traditional digital signal demodulation method that realizes more complex has the problems of carrier recovery, symbol synchronization and so on.
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.
在GPS信号中载波是完全抑制的,尽管接收的GPS频谱中不含载波分量,但它是能够恢复的。
The carrier component presented in GPS signal is completely suppressed. Even though the spectrum of the received GPS signal does not contain a carrier component, it is possible to reconstruct one.
在接收端,利用混沌序列的发生规则从接收信号中提取混沌载波,并经过简单的信号处理运算恢复出原来的有用信号。
At the receiver, the chaotic carrier is retrieved from the received signal by use of the rule in which the original chaotic series is generated. Then, the message sign...
尤其对用数字方法恢复单一载波调制格式中的光相位和偏振的接收机端的先进算法进行了详细的讨论和分析。
The principle of several digital phase and polarization tracking algorithms recently proposed and demonstrated for future spectrally-efficient optical transmission system are discussed in detail.
分析了线性载波调制信号经欠采样后,满足一定的条件时可以恢复基带信号波形。
The Study on the Corelation of Modulation Coefficient and Bandwidth with Modulation Signal Parameters in Angular Modulation;
分析了线性载波调制信号经欠采样后,满足一定的条件时可以恢复基带信号波形。
The Study on the Corelation of Modulation Coefficient and Bandwidth with Modulation Signal Parameters in Angular Modulation;
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