您要查找的是不是:
- frequency division technique 频率分割技术
- Orthognal Frequency Division Multiplexing (OFDM) is a multi-carrier digital modulation technique for broad-band wireless communication. 正交频分复用(OFDM)是一种多载波数字调制技术。
- OFDM (Orthogonal Frequency Division Multiplex) technique, on which DRM system is based, features with high bandwidth efficiency and robustness to multi-path channel. DRM系统以OFDM(Orthogonal Frequency Division Multiplex)技术为基础,具有高频带利用率和抗多径干扰等特点。
- Orthogonal Frequency Division Multiplexing (OFDM) is the modulation technique for wireless communications,for OFDM can effectively combat Inter-Symbol Interference(ISI) caused by multipath channel,it has gained much of people's interest. OFDM(正交频分复用)是一种无线环境下的高速传输技术,它对由于无线信道的多径传播引起的ISI(符号间干扰)有很强的抵抗能力,已经引起了人们的广泛关注。
- It describes and compares three kinds of multiaddress connection technique of frequency division multiaddress(FDMA), time division multiaddress(TDMA) and code division multiaddress(CDMA). 介绍了频分多址 ( FDMA)、时分多址( TDMA)和码分多址 ( CDMA)三种多址联接技术 ,并对它们进行了比较。
- Orthogonal frequency division multiplexing (OFDM) is an attractive technique for wireless communication applications.However, OFDM signals have a large Peak-to-Average Power Ratio (PAPR). 摘要对于无线通信系统而言,OFDM是一种非常有吸引力的传输技术,但是OFDM信号具有较高的峰平比特性。
- Orthogonal frequency division multiplexing (OFDM) is an efficient technique for high-bit-rate transmission.One major drawback of OFDM is the high peak-to-average power ratio (PAPR). 中文摘要正交分频多工对于高位元传输速率的系统而言是一种非常有效率的技术,但高的功率峰均值比(PAPR)是正交分频多工(OFDM)系统的一个主要缺点。
- Use of one channel for several messages by timedivision multiplex or frequency division. 通过时分或频分多路复用的方法,用单个信道传输多个报文。
- From Release 1.2 onwards MU886 will also be able to operate in Frequency Division Duplexing (FDD) mode. 从版本1.;2起,MU886还能按分频双工(FDD)的模式运行。
- The advantages, principles and application methods of its frequency division and M/T measurement of speed are provided. 车用油耗器设计中测量电路的设计是关键技术,重点介绍了分频技术和M/T测速技术的优点、原理和在设计中的应用方法。
- The orthogonal frequency division multiplexing (OFDM) is outlined and the error rate is analysed. 著重分析了正交多载波调制(OFDM)技术的原理及在电力线信道下的误码性能。
- Orthogonal frequency division multiplexing (OFDM) is a multi-carrier modulation method. 正交频分多路复用是一种多载波调制技术。
- ADSL transmission equipment vendors use either frequency division multiplexing or echo cancellation to achieve this huge gain in throughput. ADSL传输设备供应商不是利用频分多路复用,就是利用回波消除,以获得吞吐量有大幅度的提高。
- The design method of a kind of wideband HF date modem based on orthogonal frequency division multiplexing (OFDM) is introduced. 介绍了一种基于正交频分复用(orthogonal frequency division multiplexing,OFDM)技术的宽带短波数据调制解调器的设计方案。
- Study of the Fov Division Technique 重叠视场细分技术的研究
- DRM has become to a international standard of AM broadcast. It modulate by COFDM(Coded Orthogonal Frequency Division Multiplex) technology. DRM数字调幅广播已经成为国际标准,它使用COFDM(Coded Orthogonal Frequency Division Multiplex)调制技术。
- Orthogonal Frequency Division Multiple Access (OFDMA) gains an increasing attention for broadband wireless access (BWA) system. OFDMA在BWA系统中得到越来越多的应用。
- Why DSL can be called a wide band technology is because it exploits OFDM which represents Orthogonal Frequency Division Multiplexing. DSL技术之所以能够被称为宽带技术,主要是由于它的复用方式是OFDM。
- The Multi-Carrier CDMA (MC-CDMA) system combines the advantages of orthogonal frequency division multiplexing (OFDM) system with that of CDMA system. Multi-CarrierCDMA(MC -CDMA)系统结合了正交频分复用 (OFDM)系统和码分多址 (CDMA)系统的优点 ,能比传统CDMA系统提供更高的用户容量 ,因而在 3G中受到了广泛的关注。
- The peak-to-average power ratio of orthogonal frequency division multiplexing(OFDM systems is reduced with an improved constellation extension scheme. 为降低正交频分复用(OFDM)信号的峰均功率比,提出了改进的星座图扩展方法。