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- 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。
- 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。
- 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。
- 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。
- 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。
- How much do all these figures stack up to? 这些数字的总和是多少？
- Tell me about all your doings in London. 告诉我你在伦敦所做的一切。
- If we all muck in we'll soon finish the job. 如果我们大家都动手，一会儿就可以干完这件事。
- We all have our little weaknesses. 我们都有些小缺点。
- They all cooed over the new baby. 他们对着新生婴儿爱抚地轻声细语。
- 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.
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