现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
21期
31-34
,共4页
张海宁%吴介军%段渭军%黄亮
張海寧%吳介軍%段渭軍%黃亮
장해저%오개군%단위군%황량
OFDM%水声通信%Matlab%IFFT/FFT%循环前缀
OFDM%水聲通信%Matlab%IFFT/FFT%循環前綴
OFDM%수성통신%Matlab%IFFT/FFT%순배전철
OFDM%underwater acoustic communication%Matlab%IFFT/FFT%cyclic prefix
正交频分复用技术(OFDM)具有抗频率选择性衰减和提高频带利用率的良好特点。设计了基于OFDM技术的水声通信系统,此系统通过IFFT/FFT算法来实现,利用保护间隔的循环前缀来克服码间干扰,并通过Matlab仿真说明OFDM系统在水声通信中有抗多径干扰性能。OFDM技术受到高速率数据传输系统的青睐,在水下通信中具有很好的应用前景。
正交頻分複用技術(OFDM)具有抗頻率選擇性衰減和提高頻帶利用率的良好特點。設計瞭基于OFDM技術的水聲通信繫統,此繫統通過IFFT/FFT算法來實現,利用保護間隔的循環前綴來剋服碼間榦擾,併通過Matlab倣真說明OFDM繫統在水聲通信中有抗多徑榦擾性能。OFDM技術受到高速率數據傳輸繫統的青睞,在水下通信中具有很好的應用前景。
정교빈분복용기술(OFDM)구유항빈솔선택성쇠감화제고빈대이용솔적량호특점。설계료기우OFDM기술적수성통신계통,차계통통과IFFT/FFT산법래실현,이용보호간격적순배전철래극복마간간우,병통과Matlab방진설명OFDM계통재수성통신중유항다경간우성능。OFDM기술수도고속솔수거전수계통적청래,재수하통신중구유흔호적응용전경。
Orthogonal Frequency Division Multiplexing(OFDM)has good characteristic of resistance to frequency selectivity attenuation and improving bandwidth efficiency. An underwater acoustic communication system based on OFDM technology is designed,which is implemented by IFFT / FFT algorithm and use cyclic prefix of guard interval to overcome intersymbol inter-ference. Through Matlab simulation,the anti-multipath interference characteristic of the OFDM system in underwater acoustic communication is proved. The OFDM technology is favored by high speed data transmission system,and it has good application prospect in underwater communication.