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- One way to construct this system base on single-carrier modulation technique. 建立该系统的一种方式是基于单载波调制技术。
- Data bits are allocated to the channels through a highly efficient modulation technique that converts digital data to electrical signal pulses. 数据通过一种高效的调制技术(即把数字数据变成电信号脉冲)分配给各个信道。
- An adaptive modulation technique for multiuser MIMO systems with multiuser diversity is proposed. 摘要提出一种在MIMO系统中采用自适应调制实现可变速率多用户分集的方案。
- QPSK as an advanced digital modulation technique is fit for the digital satellite communication system well. QPSK作为一种先进的数字调制方式,特别适用于数字卫星通信系统。
- Good knowledge in RF, Digital TV and digital modulation techniques. 精通射频,数字电视和数字调制技术;
- 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。
- This paper studies the modulation technique and demodulation technique of the self-mixing interference semiconductor laser vibrometer. 本文研究了半导体激光自混合干涉测振仪的调制与解调技术。
- In July 1998, the IEEE standardization group selected the OFDM modulation technique for their new IEEE802.1l a standard, targeting data transmission from 11 up to 54 Mbps. 1998年7月,OFDM技术正式被IEEE标准组确定为IEEE802.;11a物理层调制方法,使得无线局域网数据传输速率由11Mbps提高到54Mbps,性能得到明显改善。
- By means of digital modulation technique such as 16-QAM, it is possible to transmit all-digital HDTV signals in a radio-frequency channel with base-band of 8 MHz. 应用数字调制技术,如16-QAM,能够实现在一个基带8MHz射频信道中传输全数字化HDTV。
- The pan-European digital mobile communications using a GMSK modulation, while the United States and Japan, the number of mobile communication QPSK modulation technique is used. 泛欧的数字移动通信采用的是GMSK调制,而美国和日本的数字移动通信则采用QPSK调制技术。
- Orthogonal frequency-division multiplexing(OFDM) is an efficient multi-carrier modulation technique to overcome the multi-path fading and reduce the ISI in wireless channels. 正交频分复用)是一种高效的多载波调制技术,可以用来对抗无线环境中的多径衰落,减少码间干扰。
- Based on the output-voltage error function, a novel time discrete modulation technique is proposed for matrix converters (MCs) and time-discrete difference equations of a MC circuit are derived. 摘要针对矩阵变换器调制方式的特点,提出了基于输出电压误差函数分析的矩阵变换器离散调制技术,推导了基于时间离散和差分原理的电路方程。
- Modulation techniques for transmitting digital information in which that information conveyed by selecting discrete phase changes of the carrier. 借助所选择的离散的载波相位变化来传输数字信息的调制技术。
- 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。
- The paper QPSK, QAM, MSK modem technology are carried out a detailed simulation and analysis, that, select a modulation technique is based on channel characteristics and to determine the application. 文章针对QPSK、QAM、MSK三种调制解调技术进行了详细的仿真和分析,可见,选择一种调制技术是根据信道特性和应用来确定的。
- Both averaged transmitted-reference (ATR) modulation technique and forward error correction (FEC) coding technique can improve the performance of Ultra-wideband (UWB) autocorrelation receiver by adding some redundant signals. 平均发射参考(ATR)调制技术和前向纠错(FEC)编码技术都能通过增加冗余信号改善超宽带(UWB)自相关接收机的检测性能。
- Bobby Jaros. Comparison of Optical Wireless Modulation Techniques[Z]. EE 359 Research Project,2002(12). 胡宗敏,汤俊雄.;大气无线光通信系统中数字脉冲间隔调制研究[J]
- In recent years, new modulation techniques supported by other technological advances have helped BPL evolve. 近年来,新调制解调技术的进步帮助了电力线宽带网络的发展。
- On the basis of digital closed-loop modulate-demodulate technique, the mechamism of the over modulation technique was and theoretically analyed relative experimental reseach work was done. 对基于数字闭环调制解调方案的过调制技术改善陀螺信噪比的理论基础进行了深入的分析,在此基础上进行了相关的实验研究。
- This Paper studies implementation of a HDSL system on DMT modulation techniques and gives the result of computer simulate expriment for the system. 文中研究了一种基于DMT调制技术的HD-SL系统实现方法,并对该系统进行了计算机仿真实验。