We apply sparse signal processing to OFDM channel estimation under impulse noise.
我们将稀疏信号处理应用于冲击噪声下的OFDM信道估计问题。
Although Wiener filtering has better performance in OFDM channel estimation, it is difficult to implement, because of high complexity.
在应用于OFDM系统的信道估计方法中，维纳滤波是一种估计性能较好的算法，但是该方法计算复杂度大，不利于实现。
The MIMO-OFDM channel estimation method is researched based on the system design, and a space-frequency domain optimal pilot-tones design algorithm is presented.
从系统设计角度研究了MIMO-OFDM系统的信道估计方法，提出一种基于空频域的最优导频设计算法。
In Chapter Four, the common OFDM channel Estimation algorithm, including LS and MMSE method is studied and its corresponding performance is simulated and analyzed in UWB channel.
第四章主要研究了OFDM系统常见的信道估计方法，包括LS、MMSE等算法，并且在UWB信道条件下进行了相应的性能仿真和分析。
Channel estimation is the key technique to implement OFDM system, and is also the hotspot of research.
信道估计是实现OFDM系统的关键技术之一，也是目前研究热点。
To improve system performance, there are many key technologies need to be solved or improved in OFDM and SC-FDE systems, where channel estimation is one of them.
为了进一步提高系统性能，OFDM和SC -FDE系统都还有很多关键技术需要进一步的解决和完善，信道估计就是其中之一。
In this paper, the key techniques of OFDM systems, such as equalization and channel estimation are studied.
本文主要研究了OFDM的信道估计和均衡等关键技术。
Beginning with brief introduction for the basic principle of OFDM, this paper establishes the system simulation model and thereafter analyzes the synchronization and channel estimation.
文章首先简要介绍了OFDM的基本原理，建立了系统仿真模型，对系统的同步和信道估计进行了分析。
We propose new carrier frequency acquisition and channel estimation algorithms based on the time-domain analysis of OFDM system.
本文根据OFDM系统特点，分析了OFDM系统的时域载波频率捕获和信道估计方法。
By using new DSTBC in OFDM communications system channel estimation is nto necessary and coding gain is gotten.
通过在OFDM通信系统中应用新型差分空时分组码（DSTBC），获得编码增益，无需信道估计。
This dissertation is concerned with channel estimation in both OFDM and MIMO-OFDM wireless communication systems and adaptive modulation in MIMO-OFDM systems.
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。
Synchronization and channel estimation are two key techniques for OFDM systems to ensure its good performance.
为保证其具有好的性能，需要时频同步、信道估计等一系列的关键技术加以支持。
A channel estimation method for OFDM systems using rectangular pilot pattern was proposed.
提出一种使用矩形导频图案的OFDM信道估计方法。
In this paper, a VLSI architecture for channel estimation and cyclic restoration in TDS-OFDM is proposed. The realization of cyclic correlation introduced is high-speed and low-cost.
针对TDS - OFDM系统的信道估计与数据循环化算法提出了一种硬件实现架构，其中循环相关的实现架构速度快且节省硬件资源。
The LS channel estimation of OFDM systems can be viewed as a noisy observation of the true channel frequency response, so the noise component can be compressed through subspace projecting.
OFDM系统的LS信道估计可看作真实信道频率响应的一个有噪观察值，因此可采用子空间投影方法对噪声进行压缩。
Now, a general solution is that combining STC with OFDM, but it is supposed that the channel changes slowly, so there is enough time to transmit the training sequence for channel estimation.
目前，一种普遍的解决方法是将空时码与正交频分复用（OFDM）相结合，但需要假定信道变化缓慢，从而有足够的时间通过发送训练序列来进行信道估计。
The key aspect of adaptive OFDM includes accurate channel estimation and efficient adaptive modulation schemes.
准确的信道估计和高效的自适应调制方案是自适应OFDM技术的两个关键。
A novel adaptive channel estimation method for OFDM communication system is proposed.
提出了OFDM通信系统中一种新型自适应信道估计方法。
This paper proposes a novel channel estimation method for wireless Orthogonal Frequency Division Multiplexing (OFDM) systems.
该文提出了一种新的信道估计算法，用于无线移动信道下的正交频分复用(OFDM)系统。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation.
本文主要研究适用于突发OFDM传输系统的同步技术，包括定时、频偏估计和信道估计。
The main contents of the paper are some channel estimation and equalization methods in MIMO-OFDM system.
本文研究的主要内容是MIMO-OFDM系统的信道估计和均衡技术。
A combined channel estimation method of time-frequency-selective fading channels in MIMO-OFDM systems was proposed.
提出了一种适用于时间频率选择性衰落信道的MIMO - OFDM系统的组合信道估计方法。
The result shows that, compared with the existing channel estimation algorithms for OFDM system under time-vary multipath channel, the proposed algorithm can effectively reduce estimation errors.
分析结果表明，与已有的OFDM系统在时变多径信道中的信道估计技术相比，所建议的算法可以有效地减小信道估计的误差。
This thesis mainly focuses on the algorithms for channel estimation in the wireless OFDM systems including pilot assisted channel estimation and channel blind estimation.
本文主要研究无线OFDM系统中的信道估计算法，包括基于导频辅助信道估计算法和信道盲估计算法。
This thesis mainly focuses on the time-varying channel estimation methods based on pilot tones in wireless OFDM systems.
本文主要研究了无线OFDM系统中基于导频的时变信道估计方法。
In this paper, the pilot subcarriers on two consecutive OFDM symbols are utilized for joint frequency offset correction and channel estimation.
基于连续OFDM符号上的导频子载波，给出了联合频率偏移纠正和信道估计方法。
Based on the detailed analysis of the channel impulse response (CIR) leakage in the practical OFDM systems, a sub-optimal time domain channel estimation algorithm is proposed.
基于对实际系统中信道冲激响应(CIR)泄漏问题的详细分析，提出了一种次优的时域信道估计算法。
At present, the channel estimation of wireless OFDM systems has been still in the progress of research and exploring.
目前，对于无线OFDM系统的信道估计方法仍处于研究和探索阶段。
After describing some basic channel estimation algorithms in OFDM and SC-FDE systems, we propose some new channel estimation algorithms.
在简单介绍了OFDM和SC - FDE中的一些信道估计技术后，我们提出了几种信道估计方法。
After describing some basic channel estimation algorithms in OFDM and SC-FDE systems, we propose some new channel estimation algorithms.
在简单介绍了OFDM和SC - FDE中的一些信道估计技术后，我们提出了几种信道估计方法。
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