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OnPerformanceLimitsofDFTSpreadOFDMSystems
- OnPerformanceLimitsofDFTSpreadOFDMSystems DFT Spread OFDM has been proposed recently to reduce the Peak to Average Power Ratio (PAPR) of conventional OFDM transmission. Besides PAPR reduction, an important implication of DFT Spreading is t
The-simulation-of-OFDM-systems
- 正交频分复用(OFDM) 是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP) 和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division mult
BOC-Modulated-Signals
- 一个通用模型的相干多径误差调制信号跟踪BOC,在寻求使用全球导航卫星系统（GNSSs）导航精度的主要挑战是减少测量和星历误差。统称现代化将减少测量误差，提供了一个更大的全球导航卫星系统各种努力，需要新的卫星研制和发射，并因此发生过了很多年的时间尺度。全球定位系统（GPS）的用户，星历误差是最近完成调用的传统精度改进倡议，或L-AII的，只涉及修改地面优点的努力目标。这一努力的结果在一个永久的广播星历误差减少25％[1]。-A General Model of Multipath Error fo
essai
- Orthogonal Frequency Division Multiplexing (OFDM) systems are more sensitive to timing and frequency offsets than single carrier systems. This Paper presents a method of joint time and frequency synchronization for OFDM systems. The synchroni
estimation
- Orthogonal Frequency Division Multiplexing (OFDM) systems are more sensitive to timing and frequency offsets than single carrier systems. This Paper presents a method of joint time and frequency synchronization for OFDM systems. The synchroni
OFDM_chapter_book
- Orthogonal Frequency Division Multiplexing (OFDM) systems are more sensitive to timing and frequency offsets than single carrier systems. This Paper presents a method of joint time and frequency synchronization for OFDM systems. The synchroni
An-Adaptive-Block-Based-Eigenvector-Equalization.
- An Adaptive Block-Based Eigenvector Equalization for Time-Varying Multipath Fading Channels.In this paper we present an adaptive Block- Based EigenVector Algorithm (BBEVA) for blind equalization of time-varying multipath fading channels. In addit
ppm2
- 多径信道下的采用rake接收机ppm-th调制和解调及误比特图仿真-Multipath channel the rake receiver ppm-th modulation and demodulation and bit error pattern simulation
Shaping-correlator-BOC-signal-
- 为了克服原有抗多径算法在偏移二进制载波( BOC)信号上性能不如粗捕码( coar se/ acquisition co de, C/ A 码)的缺点, 并消除 BOC信号在跟踪时特有的多峰模糊特性, 将一种 新的参考码应用在 BOC信号的跟踪中,并与窄相关器以及高分辨相关器( HRC)技术进行了比较, 分别给出了多径误差包络, 从仿真结果中得出了最佳参考码码型,并根据最佳参考码 分析了成形( Shaping) 相关器的噪声性能。Shaping 相关器消除了多峰模糊的特点,并在多径误差包
weighted-spatial-
- 多径条件下基于加权空间平滑的阵元幅相误差校正-Multipath based on weighted spatial smoothing array element amplitude and phase error correction
WSF-based
- 多径条件下基于WSF的均匀圆阵幅相误差自校正-WSF-based multipath conditions of uniform circular array amplitude and phase error self-correction
OFDM--multipath-fadingsimulation
- OFDM通信系统抗多径衰落性能仿真，最后给出不同信道下，循环前缀、均衡技术对系统误码率影响的比较曲线，并得出结论。-OFDM communication system simulation of multipath fading Finally, under different channel, cyclic prefix, equalization impact on the system bit error rate comparison curve, and draw conclusion
QPSK
- OnPerformanceLimitsofDFTSpreadOFDMSystems DFT Spread OFDM has been proposed recently to reduce the Peak to Average Power Ratio (PAPR) of conventional OFDM transmission. Besides PAPR reduction, an important implication of DFT Spreading is that the ind
modulation
- 对现有数字调制方式识别类型有限的问题，提出一种基于星座图的分类算法。算法首先利用盲均衡技术克服信道的多径效应与系统问步误差，再对信号减法聚类，提取聚类中心与理想星座图模型进行匹配，从而实现MAsK、MPsK、MOAM等调制方式的识别。-Existing types of digital modulation recognition of limited problem, a classification algorithm based on the constellation. Firstly,
LTE
- 对于城市环境中的高精度单频 GNSS 接收机而言，若考虑误差预报处理已抵消电离层误差，则地面传播环境所导致的多径效应将成为系统误差的主要因素。基于现有蜂窝通信的高分辨率信道估计结果，针对电波传播的幅度、相位、多普勒等特征提取信道响应函数，在极小误差范围内提供至 L 波段信号的线性特征映射-For multipath effects in urban environments with high accuracy single-frequency GNSS receiver, the foreca
bpsk_ofdm_commtoolbox32
- Bit Error Rate Performance of BPSK Modulation and OFDM-BPSK with Rayleigh Multipath Channel. M. Divya. International Journal of Engineering and Advanced Technology (IJEAT). ISSN: 2249 – 8958, Volume-2, Issue-4, April32
fwryj
- 未来线路预测,分析误差,线性调频脉冲压缩的Matlab程序,考虑雨衰 阴影 和多径影响。- Future line prediction, error analysis, LFM pulse compression of the Matlab program, Consider shadow rain attenuation and multipath effect.
vt255
- 预报误差法参数辨识-松弛的思想，有借鉴意义哦，考虑雨衰 阴影 和多径影响。- Prediction Error Method for Parameter Identification- the idea of relaxation, There are reference Oh, Consider shadow rain attenuation and multipath effect.