范文编号:TX336 范文字数:15516,页数:33 摘要 本范文以OFDM系统为基础,介绍了OFDM系统的基本原理,以及使用OFDM技术的优势所在,并且展望了今后的无线移动技术的发展前景。在简单介绍OFDM原理的同时,着重阐述了OFDM系统在不同信道环境和不同实现方式下的误码性能。主要包括了OFDM系统在加性白高斯信道,和瑞利衰落两种不同信道环境下系统的误码性能,其中后者还研究了系统在有保护间隔与无保护间隔下的误码性能。在理论分析的基础上,用MATLAB软件对OFDM的性能进行了仿真模拟并对结果进行了分析。 ABSTRACT This paper presents you the basic principle of OFDM(Orthogonal Frequency Division Multiplexing)and where it excels based on OFDM system , following with the prospective of wireless mobile communication. After a brief introduction to OFDM principle , it mainly focuses on the effect of OFDM system under different channels and with different system realizations on the Bit Error Rate (BER). It mainly includes two kinds of channels: the AWGN channel and the Rayleigh fading. In the latter, we compare the BER with two different system realizations: one with Guard Intervals(GI), and the other without GI. Based on the theoretical analysis, making use of MATLAB to simulate the performance of OFDM. The result of computer simulation are also discussed. 目录 OFDM系统性能研究与仿真实现相关范文 |
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