摘要
MIMO-OFDM将OFDM技术与MIMO技术结合起来,在不增加带宽与功率的前提下,可以增加数据的传输数率,被视为下一代高速无线通信的核心技术。文章介绍了无线通信系统中的MIMO-OFDM技术,阐述了MIMO-OFDM系统的基本原理与特点,并就系统模型作了理论推导,详细说明了MIMO-OFDM通信系统的关键技术:编解码技术、同步技术和信道估计技术。
Combing the advantages of MIMO and OFDM technologies, MIMO-OFDM can significantly increases the data throughput without increasing the transmission power and enlarging the bandwidth, to OFDM technology and MIMO technology, combining without increasing the bandwidth and power of the premise, and is considered the next generation of high-speed wireless communication core technology. It＇s to present the basic principles and characteristics of MIMO- OFDM technology for applying in underwater acoustic communication system, and included to theoretical derivation of the system model, and to display the detailed description for key techniques of underwater acoustic MIMO-OFDM communication system： codec technology, synchronization technology and channel estimation technology.
出处
《国外电子测量技术》
2010年第2期32-35,共4页
Foreign Electronic Measurement Technology
