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- 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。
- 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。
- 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;
- 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。
- Digital modulating technique and its application to BOX system 数字调制技术及其在BOX系统中的应用
- digital modulation technique 数字调制技术
- 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。
- 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。
- 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。
- 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 proposed a digital modulation signal identification method using the HHT and SVM methods. 提出了一种基于HHT和支持向量机的实际数字调制信号识别算法。
- 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。
- With the high development of VLSI technology,all digital modulation must be ultimately the goal of HDTV. 随着VLSI技术的高速发展,全数字化调制将是HDTV的最终发展方向。
- 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。
- In automatic classification of digital modulation signal,computing envelope variance after difference has important meaning to distinguish PSK and FSK signal. 在数字信号的自动调制方式识别中,差分后求包络方差对于区分FSK、PSK信号具有十分重要的意义。
- Namely, we use digital modulation to control the shooting-system, which can send out a series of light pulses loading information. 即采用数字脉冲编码方式对控制系统信号进行调制,将信息加载在光脉冲序列上发射出去。
- 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。
- As an effective digital modulation scheme, OFDM is widely used in wideband digital communication systems, such as DVB-T. OFDM是一种高效的数据调制方式,被广泛地应用于宽带数字通信领域。
- 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。
- 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。