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- delta modulation technique δ调制技术
- A new implementation of the DFT based on delta modulation (DM) is proposed. 本文提出一种基于增量调制(DM)序列的离散傅里叶变换(DFT)结构,它不同于基于脉冲编码调制(PCM)的常规方法。
- This paper presents an adaptive delta modulation (ADM) technique for speech acquisition and speech synthesis using the 80C31 single chip processor,emphasizing on the system design method-ology,the principles of both hardware and software design. 本文介绍了利用单片机80C31实现自适应调制的语音数据采集及语音合成技术。 重点讨论了80C31构成的系统设计思想、硬件工作原理及相应软件的设计方案。
- 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。
- CVSD (Continuous Variable Slope Delta Modulation) voice coding enables operation at high bit- error rates. 连续可变斜率增量调制的语音编码可以在高误码率的情况下正常工作。
- The CS8831CN is a single chip CMOS LSI for voice recording/play-back using the ADM(Adaptive Delta Modulation). CS8 8 31CN是用于语音录放的单片CMOSLSI,采用ADM (自适应增量调制 )。
- The work uses Adaptive Delta Modulation (ADM) to realize speech waveform coding and digital data compression. 采用波形自适应增量调制编码方法;研究并解决了语音信号的压缩与加密.
- A Dual-loop adaptive delta modulation system (DLADM) consisting of an inner loop and outer loop isdescribed. 本文叙述一种双环自适应增量调制(DLADM)系统。
- CVSD(Continuous Variable Slope Delta Modulation)voice coding enables operation at high bit-error rates. 连续可变斜率增量调制的语音编码可以在高误码率的情况下正常工作。
- 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。
- Three kinds of speech encoding schemes, namely, Pulse Code Modulation, A law PCM and Continuous Variable Slope Delta Modulation, are discussed mainly. 主要讨论了三种语音编码方案 ,即线性脉冲编码调制 ( PCM,Pulse Code Modulation)、A律 PCM和连续可变斜率增量调制 ( CVSD,Continuous Variable Slope Delta Modulation)。
- 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。
- An important method of analog/digital conversion and compression code which is called adaptive delta modulation (ADM)is discussed. 讨论模数转换和压缩编码的一种重要方法-自适应增量调制(ADM)的性能。
- 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;
- This PaPer Presents a DFT structure based on ADM (AdaPtive Delta Modulation), which is a new DFT algorithm with simple hardware, nomultiPlication and low cost. 本文提出了一种采用ADM(自适应增量调制)的DFT新结构,该结构硬件实现简单,无乘法及成本低,与基于LDM(线性增量调制的)的DFT结构相比,大大提高了信号功率的动态范围。
- 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。