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- delta modulated psk 增量调制移相键控
- 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。
- 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。
- 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 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。
- 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。
- We made an improvement in overcoming the defects in speech signal adaptive delta modulation (abbr.ADM),such as slope overloading and grain noise. In this method,numerical sliding average filtering was used for filtering decoding speech signal. 针对语音信号自适应增量调制 (ADM )方式中斜率过载和颗粒噪声等缺点 ;提出了一种改进方法 ;它利用滑动平均方法对解码后的信号进行数字滤波 .
- 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。
- In this system, continuously variable slope delta modulation(CVSD) is used to change the analogy signal into digital, GFM is used to modulate the signal, FDMA, PLL frequency synthesizer. 这种系统采用连续可变斜率增量调制(CVSD)来实现语音信号的编码、GFM调制解调方式、FDMA、PLL频率合成器技术。
- There are fertile fields in the Nile Delta. 尼罗河三角洲土地肥沃。
- This system realizes the collection,transmission and data processing of earthquake wave signal by means of delta modulation,frequency-shifting keying,frequency-division multiplexing technologies. 采用增量调制、移频键控、频分复用等技术实现地震波信号的采集、传输和数据处理.;其电路结构简单;工作可靠;信噪比高;抗干扰能力强;测量精
- The binary data bit of OFDM is modulated on the corresponding subcarrier by PSK or QAM. OFDM系统中二进制数据比特以PSK或QAM等调制方式调制到相应的子载波上。
- Below on the ASK, FSK, PSK, QAM for details. 下面就对ASK、FSK、PSK、QAM进行详细的介绍。
- HIDM High Information Delta Modulation 高信息增量调制
- Continuous Variable Slope Delta Modulation 连续可变斜率增量调制
- Continuously variable slope delta modulation, CVSD 它的基本方法是:如果连续可变斜率增量调制器
