搜索资源列表
ofdm
- 正交频分复用（OFDM，Orthogonal Frequency Division Multiplexing）是一种多载波数字调制技术，也可以被当作一种复用技术。具有频谱利用率高、抗多径干扰等特点，OFDM系统能够有效地抵抗无线信道带来的影响，例如信道的频率选择性衰落，脉冲噪声和共信道干扰的影响。本文主要介绍了OFDM原理的相关知识。-The Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Divisi
A_Novel_Structure_of_Signal_Demodulation_in_High_
- In this paper, a novel demodulation structure in high-frequency (HF) channel is introduced and studied.Frequency-offset estimation, ractionally spaced adaptive equalization and carrier recovery techniques are involved.Frequency-offset correction is
propagationchannel
- five papers( transactions and review)talking about the propagation channel: canal1: Modeling of Wide-Band MIMO Radio Channels Based on NLoS Indoor Measurements. canal2: Reliable Channel Regions for Good Binary Codes Transmitted Over Parallel Chan
IEEEuwb
- 此函数产生超宽带信道的冲激响应 其中的主要参数有，TMG--仿真距离下平均总多径增益，fc--抽样频率值 hf--离散时间冲激响应 OT--用户可以选择的观测时间，ts--时间分辨率，LAMBDA--簇到达速率，lambda--簇内脉冲到达速率 GAMMA--簇衰减因子，gamma--簇内脉冲衰减因子，sigma1--簇衰落的标准方差，sigma2--簇内脉冲幅度衰落的标准方差 sigmax--总多径增益的对数的标准差，rdt--用户可以选择的参数，用于限制每簇内多径分量的
Channel-Modeling
- This report discusses the analys of Channel gain matrix to extract all channel informations like frequency reponse, impulse response, power delay profile, correlation bandwidth ets along with the matlab code
linetiv
- 线性时不变系统的冲击响应求解及信道特性描述 幅度-Impulse response solution of linear time-invariant systems and channel characterization magnitude
TWC-2007-01-0146-An-Improved-Block-Equalization-S
- We consider the design of a block equalizer for an intersymbol interference channel, given that the channel impulse response is not perfectly known at the receiver
STATISTICAL-MODELING-OF-THE-INDOOR-RADIO-PROPAGAT
- Using the impulse response modeling of the indoor radio channel, the results of extensive multipath propagation measurements at two office buildings are reported
tvapm
- 水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。 本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。-The most difficult problem fac
bit-and-power-loading2
- 本文提出了一种算法，根据不同的噪声容限分配数据位，从而实现不等错误保护（UEP）。 新的方法是基于非UEP分配算法。新算法设计通过集成一个新的SNR-排序方案，可抗非平稳脉冲噪声和信道变化。仿真结果表明，该高度保护的比特流分布在低信噪比的大量载波上，从而确保由非平稳噪声信噪比引起的变化，不会多少影响这些载波。此外，窄带干扰不会干扰大量的重要数据。-This paper proposes an algorithm that distributes bits according to diffe
OFDM-Demodulation
- 文章介绍了OFDM解调方式在水下时间反转信道中的应用研究。-This work addresses the problem of OFDM transmission in dispersive underwater channels where impulse responses lasting tens of miliseconds cannot be reliably handled by recently proposed methods due to limitations