该词条未找到_海词词典

您要查找的是不是：

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;
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。
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。
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。
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。
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。
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。
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。
Compared with former amplitude demodulation,digital modulation RIP can obtain more accurate measurements of respiration and reduce the signal interference and distortion. 相对于模拟幅度检测,该设计具有测量精度高,抗干扰能力强等优点。
Automatic identification of the digital modulation type of a signal has found applications in many areas, including electronic warfare, surveillance and threat analysis. 摘要信号的数字调制类型识别在电子战、电子侦察和威胁告警等领域有广泛的应用前景。
The Rohde &Schwarz SME03, Signal Generator, provides AM modulation and External FSK digital modulation required for the development and testing of digital mobile radio receivers. 该罗德&施瓦茨sme03 ，信号发生器，提供上午调制和外部的FSK数字调制所需的开发和测试数字移动无线电接收器。
With the improvement of the technology, especially in the fields such as computer technology , data coding and compress , digital modulation and VLSI. , the world electronic information industry enter into the digital era. 随着科学技术的进步，特别是计算机技术、数据编码与压缩技术、数字调制技术和超大规模集成电路技术的发展，全球迎来了电子信息产业数字化的新时代。
With this method,eleven kinds of digital modulation signals,named 2ASK,4ASK,8ASK,2PSK,4PSK,8PSK,2FSK,4FSK,8FSK,16QAM and 64QAM,can be recognized with approving results when SNR is down to-5 dB. 仿真结果表明;所提出方法对信噪比SNR=-5~20 dB的2ASK、4ASK、8ASK、2PSK、4PSK、8PSK、2FSK、4FSK、8FSK、16QAM和64QAM 11种数字调制测试信号均可以较好地识别.
Technology of digital modulation and demodulation plays a important role in digital communication system, the combination of digital communication technology and FPGA is a certainly trend . 数字调制解调技术在数字通信中占有非常重要的地位,数字通信技术与FPGA的结合是现代通信系统发展的一个必然趋势。
Digital modem technology in the digital communication occupies a very important position, commonly used digital modulation are: frequency shift keying (FSK) and phase-shift keying (PSK), and so on. 数字调制解调技术在数字通信中占有非常重要的地位，常用的数字调制有：移频键控（FSK）和移相键控（PSK）等。
This paper starts with studying digital modulation and demodulation theory at first, and analyses basic principle of three kinds of important modulation and demodulation way ( FSK, MSK, GMSK ). 本文首先从数字调制解调理论入手,分析了三种重要的恒包络调制解调方式(FSK,MSK,GMSK)的基本原理;
A Modular Cell RCS can be associated with up to 12 DS0s (one per Modular Cell CDM digital module). 一个模块小区 RCS 最多可以可 12 个 DS0 相关（每个模块小区 CDM 数字模块一个）。
Base Band Interpolator Pulse Shaping (BBIPS) filter is a key component of all digital modulator. 摘要基带内插脉冲成形(BBIPS)滤波器是全数字调制器的核心模块之一。
In selecting the design of components, the use of the sensors, and BCD counter decoder circuit, the LED display is used digital module. 本设计在选用元器件时，用到了传感器，计数器及BCD译码器电路，显示器则采用了LED数码模块。