﻿ Matlab与信息论与空时编码融合的研究和实践 The Research and Practice of the Integration of Matlab and Information Theory and Space-Time Coding

Vol.07 No.01(2017), Article ID:19604,8 pages
10.12677/AE.2017.71011

The Research and Practice of the Integration of Matlab and Information Theory and Space-Time Coding

Liangfang Ni, Liangmei Wu, Peizhen Wang

School of Electrical Engineering and Information, Anhui University of Technology, Ma’anshan Anhui

Received: Jan. 2nd, 2017; accepted: Jan. 20th, 2017; published: Jan. 23rd, 2017

ABSTRACT

The information theory and space time coding is a new foundation course of information science. The teaching methods of the integration of Matlab simulation experiments and conventional teaching methods are discussed from the purpose and content of teaching, facing the requirement of students to have extensive mathematical theory and communication engineering undergraduate background as well as the current situation of students. The results show that teaching systematically, the equal stress on program explanation and example analysis, exchanging with students, grasping the dynamics of student learning are all crucial to the promotion of the interaction between teachers and students to achieve teaching objectives of making study serve the practical purpose.

Keywords:Information Theory and Space Time Coding, Matlab, Research and Practice

Matlab与信息论与空时编码融合的研究和实践

1. 引言

2. 中西合璧讲授最新研究成果

2.1. 精选主要参考教材

2.2. 合理舍去巧排内容

3. Matlab仿真和实例分析相融合的教学方法探索

3.1. 程序讲解和Matlab仿真

3.1.1. 空时分组码仿真实验

3.1.2. 空时格码仿真实验

3.1.3. 垂直分层空时码仿真实验

1) 空时码字的特性不但与多输入/多输出系统的收、发天线数有关，还与其自身构造机理相关；

2) 信道的传播特征和天线间的相关性会影响空时码字的性能；

3) 相移键控的进制数和网格编码的状态数都会影响空时格码的性能。

Table 1. The default condition for three typical experiments

Figure 1. The BERs of STBC versus SNR values, with the BPSK and Nt = Nr = 2; Nt = 3, Nr = 1; Nt = 3, Nr = 4, respectively

Figure 2. The BERs of STTC versus SNR values, with Nt = Nr = 2 and the 4 states 4PSK, the 8 states 4PSK, respectively

Figure 3. The BERs of VBLAST with ZF, MMSE and ML detector versus SNR values, with Nt = Nr = 2 and the QPSK

3.2. 实例分析注重效果

3.2.1. Alamouti空时分组码

(1)

(2)

3.2.2. 空时格码

3.2.3. 垂直分层空时码

Figure 4. 4 states 4PSK STTC

Figure 5. The structure of VBLAST

(3)

4. 统筹兼顾突出要点

1) 针对本课程理论性强的特点，我在讲课中通过反复强调基本概念、实例分析、适度的板书和提问强化学生记忆；

2) 针对本课程跨度较大，学生阅读英文参考文献时，专业术语翻译难度大的问题，我在讲授空时编码时，通过讲解和分析英文原著帮助学生顺利渡过阅读和理解英文参考文献的难关；

3) 通过分析和讲解的空时分组码，空时格码和分层空时码的编译码程序的特性和技巧，促使学生能理论联系实际地理解和掌握所学知识。

5. 结束语

The Research and Practice of the Integration of Matlab and Information Theory and Space-Time Coding[J]. 教育进展, 2017, 07(01): 64-71. http://dx.doi.org/10.12677/AE.2017.71011

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