本文研究了通过改变符号率及调制电平的方法实现的自适应调制系统。
In this paper, an adaptive modulation system controlled by changing the symbol rate and modulation level is proposed.
针对简单的单用户监测情况，分析并实现了单用户MB - OFDM - UW B自适应调制系统。
As to the simple monitoring environment of single user, this paper mainly analyzed and implemented adaptive modulation in MB-OFDM-UWB system.
仿真结果表明，自适应调制系统可以获得较高的数据吞吐量，而其传输中断率在一定条件下可以保持较低的水平。
Finally, the simulation results show that the adaptive modulation system can theoretically achieve high throughput performance, and low transmission outage probability under certain conditions.
本文围绕自适应调制技术在OFDM系统中的应用涉及的技术问题展开研究。
When the adaptive modulation is applied in the OFDM system, there are lots of problems to be solved.
利用一个自适应控制器跟踪信息信号的误差对产生混沌载波的发射系统进行参数调制。
The parameter of the transmitting system procreated chaotic carrier is modulated by errors from an adaptive controller and information signal.
自适应调制技术是移动宽带通信系统的核心技术之一。
Adaptive modulation technology is one of the crucial techniques for the mobile broadband systems.
设计了应用于交直流互联电力系统的直流功率调制的非线性鲁棒自适应控制器。
The robust adaptive control law is proposed for a HVDC power modulation controller of the interconnected AC/DC power system.
最后，提出了一种低复杂度的VBLAST - OFDM系统自适应调制方案。
Finally, this dissertation proposes a low complexity adaptive modulation scheme for VBLAST-OFDM system.
在此基础上，本文重点研究了LTE中的链路自适应方案，对自适应调制编码（AMC）技术以及混合ARQ算法进行了系统仿真。
This article mainly investigated the link adaptation schemes of LTE system based on this simulation platform, and simulated adaptive modulation and coding (AMC) and Hybrid ARQ schemes in the platform.
讨论宽带无线tdma系统中采用的自适应调制技术。
This paper discusses adaptive modulation techniques for TDMA high capacity wireless TDMA communications systems.
提出了自适应调制技术的多用户MIMO系统的多用户分集。
An adaptive modulation technique for multiuser MIMO systems with multiuser diversity is proposed.
然后结合仿真实验分析研究系统采样延迟对调制自适应均衡性能的影响，实验结果表明其影响作用明显，不可忽略。
With the simulation experiments, the effect of the sample delay to the adaptive equalization performances will be researched. The results show that the effect is obvious.
本文研究了OFDM和MIMO-OFDM无线通信系统的信道估计技术以及MIMO-OFDM系统的自适应调制技术。
This dissertation is concerned with channel estimation in both OFDM and MIMO-OFDM wireless communication systems and adaptive modulation in MIMO-OFDM systems.
另一方面，对于MIMO - OFDM系统来说，自适应调制技术可以提高系统的数据传输率、频谱效率以及传输的可靠性。
On the other hand, adaptive modulation technique can enhance data rate, spectrum efficiency and transmission reliability in MIMO-OFDM systems.
并提出了一种基于联合定位技术的自适应编码调制传输方案，该方案可有效提高系统资源的综合利用率。
Furthermore, it proposes a solution on adaptive coded modulation system using the hybrid position location technology, which can improve the exploitation of systems.
在汽车空调制冷系统的普通模糊控制的基础上，引入了自适应模糊控制。
Based on the ordinary fuzzy control of automobile air-conditioning system, this paper provides the adaptive fuzzy control.
从这一点出发，多元正交幅度调制(MQAM)、多载波调制(MCM)及自适应调制技术成为下一代移动无线系统中最有竞争力的几种候选技术。
From this point, M-ary Quadrature Amplitude modulation (MQAM), MultiCarrier modulation (MCM) and adaptive modulation techniques are good candidates in next generation mobile radio system.
针对全球微波接入互操作性系统中自适应调制编码子载波分配方式，该文提出一种基于多用户分集的资源分配算法。
This paper proposed a resource allocation algorithm based on multiuser diversity based on the subcarrier allocation of adaptive modulation and coding.
自适应调制能提高系统的频谱利用率和改善系统的误码率性能。
Adaptive modulation can improve the system performance with high spectral efficiency.
提出一种适用于石油测井领域高速电缆遥测通信系统，基于自适应均衡和QAM正交振幅调制技术的调制解调器的原理和实现方法。
This paper proposed a modem based on adaptive equalization and QAM in oil logging for cable telemetry communication systems with high date rate.
本论文的工作主要是分块传输系统中的自适应调制算法的研究。
Most work in the thesis focus on the research of adaptive modulation algorithms.
实验结果表明，所提出的空频二维自适应调制算法可以在保证系统目标传输速率和目标误比特率的前提下，进一步减小系统所需要的平均发射功率。
The simulation results show that the proposed algorithm can reduce the overall transmission power further while the target transmission rate and bit error rate are met.
利用该成像系统分别进行了时间域多次曝光，空间域光强编码调制，自适应PID反馈控制三种动态范围扩展实验。
Three dynamic range extending experiments are performed with this system: temporal SLM multi-exposure method, spatial light encoding method and self-adaptive PID feedback control method.
但由于其符号映射和检测在时域完成，因此在SC -FDE系统中利用信道状态信息来完成自适应调制，并不像OFDM那样直接。
But SC-FDE cannot finish adaptive modulation utilizing CSI directly like OFDM due to it has to make symbol mapping and detecting in time domain.
其次研究了自适应OFDM系统的功率分配及自适应调制算法。
The adaptive power allocation algorithm and modulation scheme for adaptive OFDM systems are studied subsequently.
本文在已知信道状态信息的前提下，将MIMO和OFDM技术相结合，提出了一种新的MIMO - OFDM系统的功率分配和自适应调制方法。
In this paper, a novel power allocation and adaptive modulation method is proposed on the basis of the combination of MIMO and OFDM technology.
然后结合仿真实验分析研究系统采样延迟对调制自适应均衡性能的影响，实验结果表明其影响作用明显，不可忽略。
The equalizer shows the good performances. With the simulation experiments, the effect of the sample delay to the adaptive equalization performances will be researched. The results show that …
自适应编码调制技术是一项在衰落信道中逼近香农容量限，获得高的系统吞吐量的必需技术。
ACM is a powerful technique to approach Shannon capacity and achieve high throughput in fading channels.
本文重点介绍了DVB - S2系统中的三项核心技术：自适应编码调制(acm)、输入适配与新的前向纠错编码技术。
This article mainly introduces three kernel technics. Adaptive Coding and Modulation (ACM), Input Adaptation and a new method of Forward Error Correction.
本文重点介绍了DVB - S2系统中的三项核心技术：自适应编码调制(acm)、输入适配与新的前向纠错编码技术。
This article mainly introduces three kernel technics. Adaptive Coding and Modulation (ACM), Input Adaptation and a new method of Forward Error Correction.
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