Subcarrier相关论文
Subcarrier-Abstracted Multi-frequency Constant-Envelope Multiplexing and Its Implementation Optimiza
More and more signals are broadcast by navigation satellite systems nowadays to satisfy users diversified needs in posit......
A40kmFiber-opticMicrowaveSubcarrierMultiplexingTransmissionSystemforMulti-channelFM-TVZHANGZhengxian;LINZhiyuan;LIZhitang;XuJ...
A40kmFiber-opticMicrowaveSubcarrierMultiplexingTransmissionSystemforMulti-channelFM-TVZHANGZhengxian; LINZhiyuan; L......
Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multip
The traditional orthogonal multiple access (OMA) is unable to satisfy the needs of large number of smart devices. To inc......
An expendable conductivity-temperature-depth profiler(XCTD) is one of the most important instruments used to obtain hydr......
Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multip
The traditional orthogonal multiple access(OMA)is unable to satisfy the needs of large number of smart devices.To increa......
提出传统OFDM系统中隐藏着类似扩频系统的性质。通过减少系统使用的子载波数,揭示了OFDM系统的扩频特性。使用扩频系统的理论分析......
An expendable conductivity-temperature-depth profiler(XCTD)is one of the most important instruments used to obtain hydro......
介绍了ADSL的基本概念,分析了ADSL(非对称数字用户线路)的基本原理,分析了初始化训练阶段帧的结构,并给出了初始化训练阶段符号同步、......
研究卫星测控信号优化问题,针对测控侦察中卫星测控副载波信号分离识别耗时长的问题,为了满足测控侦察实时准确信息的要求,提出一......
在多用户正交频分复用(OFDM)系统中,提出了一种基于复合星座的自适应子栽波和比特分配算法。为了尽量减少系统的发射功率,该算法消除了......
无线信号在室内易受到多径效应、小尺度衰落等影响,使得现有基于射频信号的人体移动检测方法无法保证缓慢行为识别的鲁棒性和可靠......
从调频调制原理入手,分析RDS、SCA副载波技术的原理、在调频立体声广播中的应用条件,并提供副载波技术在应急广播系统中对广播终端......
由于SC-FDMA的峰均功率比(PAPR)比OFDMA低,因而被应用于3GPP LTE上行链路。论文分析了SC-FDMA传输系统的数学模型,介绍了基于导频的S......
文中着重讨论伽利略卫星导航系统中采用的LOC调制技术,对LOC信号的基本特性作具体分析,提出副载波调制指数为奇数时应采用正弦类型......
This paper investigates subcarrier and power allocation in a multi-UAV OFDM system.The study considers a practical scena......
Analytical Solution and Numerical Simulation of Real-Time Dispersion Monitoring Using Tone Subcarrie
A method for online dispersion monitoring by adding a single in-band subcarrier tone isintroduced.According to the theor......
相干光通信以较高的检测灵敏度引起了人们的重视,但因工程实现困难等问题而限制了该技术的应用.为此,提出了一种新的外差检测方法,......
CXA2075M是SONY公司生产的视频解码芯片.该芯片可将模拟RGB信号转换为组合视频信号,非常适合于个人计算机和高清晰度电视机之间的......
本文提出了产生被录像信号同步锁相彩场信号的多种方法,并对其实际电路进行详细的分析。......
为改善OFDM无线网络下行链路子载波分配的公平性,本文将最优的子载波问题建模为最大化总体效益函数,并提出了一个新的基于联合层动......
副载波产生电路是视频处理系统的重要组成部分.介绍了直接数字频率合成(DDFS)原理及副载波在视频信号处理中的作用;利用DDFS技术设......
本文用一种用群信号地微波副载波调频的副载波复用光纤电视传输系统的新方案,其特征是在一个微小副载波上载送2-3路视频信号。对系统参......
正交频分复用是采用多信道数字调制,将数据经编码后调制为射频信号的技术。在短波信道中应用OFDM技术,利有Ⅳ路子载波,在相同数据传输......
研究了优化公平性的多用户OFDM系统下行链路的资源分配算法,根据系统各用户的业务需求,在保证用户所得数据速率满足一定比例以及系......
在通信光传送网络中,由于参数的限制,影响子载波分配实时性,系统发射功率较高。为此提出通信光传送网子载波比特分配算法,采用自下......
针对OFDM系统中的几种比特分配的次优化算法进行仿真分析,尤其对具有代表性的Chow算法、LC算法进行了性能的分析、比较以便能够了......
描述了CO-OFDM系统的实验平台,通过实验验证了在CO-OFDM传输系统中使用QC-LDPC的编码方案,分别分析了LDPC码在编码长度为960和2304......
Subcarrier Availability in Downlink OFDM Systems with Imperfect Carrier Synchronization in Deep Fadi
Multicarrier systems such as orthogonal frequency division (OFDM) are considered as a promising candidate for wireless n......
Single-carrier frequency-division multiple access (SC-FDMA) and orthogonal frequency division multiple access (OFDMA) sy......
随着导航系统的增多,导航频段越来越拥挤,不同导航系统和不同卫星之间的干扰愈发严重.二进制偏移载波调制方式是通过设计分裂功率......
In this paper, we investigate the power-minimizing resource allocation problem in multiuser cooperative relay communicat......
Aiming at the problems of underwater acoustic communication such as narrowband, low speed and multipath effect, this pap......
本文介绍了差分空时分组码的编译码原理,研究了采用差分空时分组码的OFDM系统(DSTBC-OFDM)性能,仿真结果表明,DSTBC-OFDM系统的性能......
In the current multi-carrier communications,Orthogonal Frequency Division Multiplexing(OFDM)is widely considered as a le......
该文研制的非接触多路测量系统调制器和解调器是FM-FM无线电遥测系统中的关键部件。方案中,发送端由调制器将多路被测信号调制到不同的副......
In this paper, an adaptive subcarrier allocation scheme with reconfiguration of operating parameters for Cognitive Radio......