Description: 信道均衡技术是移动通信中抗衰落的三大技术之一。均衡是用来解决由于信道的非线性和时变性引起的码间干扰的有效技术。如何有效解决码间干扰问题，具有重要的理论意义。 本文在介绍自适应均衡技术的基本原理和均衡研究现状的基础上，阐述了目前几种典型的自适应均衡算法及其它们存在的一些问题。文章在传统自适应算法的基础上，提出了两种改进算法：基于RLS的自适应MIMO-DFE算法和基于分数间隔的改进CMA+SDD算法。计算机仿真结果表明，两种算法的收敛速度快，稳态误差小，均衡效果与传统算法相比都取得了明显提高。-Channel equalization in mobile communications technology is the anti-fading of the three technologies. Balance is used to solve due to channel non-linear and time-varying inter-symbol interference caused by effective techniques. How to effectively solve the inter-symbol interference problem, has important theoretical significance. This paper introduces the basic principle of adaptive equalization and balanced study of the status quo, based on the current set of several typical adaptive equalization algorithm and some of the problems of their existence. Article in the traditional adaptive algorithm based on the proposed two improved algorithms: RLS-based adaptive MIMO-DFE algorithms and interval-based scores improved CMA+ SDD algorithm. Computer simulation results show that the two kinds of convergence of the algorithm fast, steady-state error is small, compared to equilibrium results with the traditional algorithms have achieved significantly improved. Platform: |
Size: 43012096 |
Author:阿郎 |
Hits:
Description: 信道均衡技术（Channel equalization）是指为了提高衰落信道中的通信系统的传输性能而采取的一种抗衰落措施。它主要是为了消除或者是减弱宽带通信时的多径时延带来的码间串扰（ISI）问题。 其机理是对信道或整个传输系统特性进行补偿，针对信道恒参或变参特性，数据速率大小不同，均衡有多种结构方式。大体上分为两大类：线性与非线性均衡。对于带通信道的均衡较为困难，一般都是待接收端解调后在基带进行均衡，因此基带均衡技术有广泛应用。在实际中一般是加入自适应滤波器来实现信道均衡。-Equalization techniques (any) is to point to in order to improve the equalization fading Channel of communication system of transmission performance to a fight decline measures. It basically is to eliminate or is weaken broadband communication the multipath delay when the code brings between crosstalk (ISI) problem. Its mechanism is the transmission system of channel or characteristics in constant and compensation, or change the channel and characteristics, data rate of different size, balanced and DuoZhong structure mode. Roughly divided into two categories: linear and nonlinear equilibrium. For the balance of the way with communication is difficult, are generally stay at the receiving end in baseband for balanced after demodulation, therefore baseband balanced technology has wide application. In actual in general was to join the adaptive filter to realize equalization.
Platform: |
Size: 4096 |
Author:韩金雨 |
Hits:
Description: LMS算法对线性色散信道的自适应均衡，并且信道的加性噪声为未知-the use of the LMS algorithm for adaptive equalization of a linear dispersive channel that produces (unknown) distortion Platform: |
Size: 1024 |
Author:cyzhope |
Hits:
Description: 調適性訊號處理
數位通信的自適應均衡
這個項目處理窄帶數字通信使用線性調製存在多徑-ASP
Adaptive Equalization for Digital Communications
This project deals with narrowband digital communications using linear modulation in the presence of multipath. Platform: |
Size: 145408 |
Author:張瑀征 |
Hits:
Description: 此代码可以实现对图片的灰度值转换、直方图统计、直方图均衡化；可以主动加入椒盐、高斯噪声；噪声处理支持中值、线性、自适应滤波等操作。代码可以直接运行。-This code can be implemented to the image grey value transformation and histogram statistics and histogram equalization Can actively engage with salt and pepper, gaussian noise Noise processing support values, such as linear, adaptive filtering operation.The code can run directly. Platform: |
Size: 12288 |
Author:威尼 |
Hits:
Search - Adaptive Linear Equalization