频率选择性

一种基于ML准则的适用于频率选择性多径衰落的多用户检测算法

A multiuser detector derived from ml criteria for CDMA frequency selective fading channel

频率选择性衰落环境中MIMO系统信道容量研究

On the capacity of MIMO systems in frequency selective fading environments

频率选择性衰落信道中多用户OFDM系统的自适应分配算法

An Adaptive Allocation Algorithm for Multiuser OFDM System over Frequency Selective Fading Channels

频率选择性衰落信道下长扩频序列CDMA系统的盲波束成形

Blind Beamforming for Long Spreading Sequence CDMA System in Frequency Selective Fading Channel

正交频分复用（OFDM）是一种有效克服频率选择性衰落的技术。

OFDM is one of the key techniques to effectively combat frequency selective fading .

一种新型的针对频率选择性MIMO信道的空时分层检测算法

New detection algorithm for layered space-time receiver in frequency selective fading MIMO channels

基于PWM低开关频率选择性谐波控制方程组的实时算法

The Algorithm of Real-time Solution of Selective Harmonic Controlling Equations for PWM With Low Switching Frequency

MIMO频率选择性信道自适应均衡

Adaptive Equalization of MIMO Frequency Selective Channels

正交频分复用（OFDM）技术能够有效地对抗多径传播引起的频率选择性衰落，将频率选择性衰落信道转化为平坦衰落信道。

Orthogonal Frequency-Division Multiplexing ( OFDM ) is a fine technique to mitigate the effect of frequency-selective fading .

线性预编码是OFDM系统在频率选择性衰落信道中利用频率分集的有效方法。

Linear precoding is an efficient approach to increase frequency diversity order for OFDM systems over frequency-selective channels .

针对频率选择性块衰落MIMO信道，该文提出一种改进的基于参数信道模型的信道估计方法。

An improved channel estimation scheme based on estimation of parameters is presented for frequency-selective MIMO channels .

MIMO可以抗多径衰落，但是对于频率选择性深衰落，MIMO系统依然是无能为力。

MIMO system can resist multipath fading , but it is still powerless for frequency selective deep decline .

V-BLASTOFDM系统的频率选择性信道盲估计

Blind estimation of frequency-selective channels for V-BLAST OFDM system

基于DMF捕获系统频率选择性信道下捕获性能的分析

Acquisition performance analysis based on digital matched-filter over frequency-selective channel

以MIMO频率选择性衰落情况下联合信道估计与信号检测为背景，提出了一种时延域粒子滤波。

In the background of MIMO frequency selective channel estimation , a time delay domain particle filtering is suggested .

本文主要研究了基于训练序列的多输入多输出（MIMO）时变频率选择性衰落信道的估计与跟踪问题。

The problem of channel estimation and tracking for MIMO time-varying frequency-selective channels is investigated based on training sequences .

频率选择性OFDMV-BLAST系统的直接解码算法

Direct Decoding Algorithm for Frequency-Selective OFDM V-BLAST System

无线OFDM系统频率选择性衰落信道下的SOVA译码算法

SOVA Algorithms Under Frequency-Selective Fading Channel for OFDM Wireless System

但是，目前对于矢量OFDM在频率选择性衰落信道下完整的性能刻画尚属空白。

However , the complete analysis of the performance of the vector OFDM in frequency selective fading channel is still absent .

针对频率选择性衰落MIMO移动信道，建立三维（3D）纯随机模型，并推导出3DMIMO信道模型的联合空时频相关函数。

A 3D statistical channels model for mobile frequency selective fading MIMO channels was proposed and a new joint space-time-frequency correlation function was derived .

本文采用ML准则得出了适于频率选择性衰落的线性解相关算法。

In this paper , a decorrelator for multiuser detection derived from ML criteria in CDMA system is proposed for frequency selective fading channels .

MIMO-OFDM既利用了MIMO技术提高系统频谱利用率的优势，又具备了OFDM抵抗频率选择性衰落的优点。

MIMO-OFDM takes the advantage of MIMO in improving spectrum efficiency and has the OFDM resistance frequency selective fading .

本文首先介绍了射频I/Q不平衡时对高斯以及频率选择性信道下OFDM接收机性能的影响；

The paper introduces the effect of I / Q imbalance about OFDM receiver in AWGN and frequency selective fading channel firstly ;

提出了一种适用于频率选择性衰落信道，新的下行多用户MIMO系统预处理传输方案。

A new transmission scheme , which combines transmit preprocessing with multiuser MIMO downlink system over frequency-selective fading channel is proposed .

在AWGN（AdditiveWhiteGaussionNoise）信道以及频率选择性衰落信道下，对各种算法做了大量的仿真。

A lot of computer simulations are given over Additive White Gaussion Noise ( AWGN ) and frequency selective fading channels .

频率选择性衰落对QPSK系统误码性能的影响

The Influences of Frequency Selective Fading on BER Performance of QPSK Systems

本文的研究内容就是频率选择性衰落信道和双衰落信道下的OFDM信道均衡技术。

In this thesis , we study equalization techniques for OFDM over the frequency selective fading channel and doubly selective fading channel respectively .

正交频分复用（OFDM）技术利用相邻子载波间的正交特性，能有效对抗无线信道的频率选择性衰落。

Orthogonal frequency division multiplexing ( OFDM ) technology uses between adjacent sub-carrier orthogonality can be effective against frequency-selective multipath fading wireless channel .

正交频分调制（OFDM）是一种高效的数据传输技术，具有良好的抗频率选择性衰落能力，并且提高了频谱利用率。

The great advantage of OFDM is that it is robust against frequency selective fading and that it improves frequency utilizing rate simultaneously .

利用上述移不变性性质，本文进一步提出了相应的下行频率选择性衰落MIMO无线信道的盲估计方法。

By exploiting the induced shift-invariance property , one blind estimation method of downlink frequency-selective fading MIMO wireless channels is further derived .