波形变换

波形变换实验项目的EWB仿真问题研究

EWB Simulation for A Waveform Transformation Experiment

一种基于波形变换域的分段ADPCM语音编码算法

A Segmental ADPCM Speech Coding Algorithm Based on Waveform Transform-Domain

本文在Mozer语音编码算法基础上，提出一种利用波形变换与分段ADPCM相结合的语音编码算法。

Based on the Mozer speech coding algorithm , this paper proposes a speech coding algorithm which combines waveform transform with adaptive differential pulse code modulation ( ADPCM ) coding .

文中在介绍Mozer方法的要点及其局限性基础上，着重讨论浊音的波形变换与分段ADPCM的编译码过程，文末给出了汉语普通话常见五个单元音量化信噪比的测试结果。

After recapitulating the Mozer method and its limited competence , we focus on the voiced waveform transform and segmental ADPCM encoding procedure , In the end of this paper , we present the SNR test results for the five vowels of Mandarin Chinese .

一种可提高电压利用率的波形变换实现方法

A New Approach of Waveform Modulation to Increase Voltage Usage Factor

基于波形变换编码的一种语音合成器

A Speech Synthesis System Using the Waveform Transform Coded Method

波形变换编码语音分析和合成开发系统研制

Design and Implementation of Waveform Transformation Coding Speech Analysis-Synthesis System

波形变换域语音波形的帧间差分编码

Intra-frame Differential Coding for Speech Waveform in Time Domain

文中对波形变换编码方法作了概括，介绍语音分析和合成开发系统的硬件结构和软件组成。

General introduction of the systemas well as hardware and sofware development are presented .

干扰抑制算法的实现主要包括波形变换、断点位置搜索、断点位置调整等步骤。

Steps to achieve suppression algorithm includes waveform transform , breakpoint location search , breakpoint position adjustment and so on .

提出了一种采用波形变换及锁相的方法，产生晶闸管并联谐振逆变触发脉冲的电路，给出了具体电路框图及原理分析。

A circuit to produce phase-locked trigger pulse using waveform converting and phase-locked for SCR shunt-resonant inverter is proposed in this paper .

硬件设计包括含数字电位器的信号放大、模拟开关及A/D转换、波形变换、单片机及其外围等电路。

Hardware design includes circuits of signal amplification of digital potentiometer , analog switch , A / D conversion , wave conversion , single-chip and peripheral equipment .

该系统以波形变换、实时校准的测量原理为依据，利用单片机协调控制技术比较好地解决了大型铁芯磁特性自动磁锻、测量及电子磁通计积分漂移等问题。

It can measure the magnetic characteristic of the large scale iron core automatically and can solve the problem of integral floating of electric magnetic flux meter .

为新一代正弦交流稳压器、电子变压器、交流调压器、同频波形变换器的实现奠定了关键技术基础。

This kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply , electronic transformer , ac regulator , and wave converter etc.

电路输出可以作为标准信号，用来校准医用微分器，作生理电脉冲波形变换的研究。

The output of the oscillator can be used as a standard signal for calibration of the differentiator to employ in research on the transformation of physiological pulse wave forms in medical science .

高频交流环节AC/AC变换技术，是电力电子学的前沿研究课题和实现新型正弦交流稳压器、电子变压器、交流调压器和同频波形变换器的关键技术基础。

AC / AC conversion technology with high frequency ac link is a leading content of power electronics , and key technical foundation of new-type regulated sinusoidal ac power supply , electronic transformer , ac regulator , waveform converter with same frequency .

首先通过滤波前后边界点与预设门限的比较确定权值。然后通过预估结果与不同频率偏差下的采样序列的加权比较确定频偏。对于未知噪声环境中的频率偏差检测，通过波形变换的方法确定。

Comparing the border point with pre-set threshold to sure weight , then comparing the estimated result with the sampling points in different frequency offset to determine the frequency offset ; For the frequency offset estimation under ambient noise unknown , it can be obtained by wave translation .

本文提出了一种利用脉搏波波形傅里叶变换（FFT）的频率幅值来评价血管弹性的方法。

This study proposed a method using the value of amplitude of FFT frequency to evaluate the vascular elasticity ( VE ) .

用分析方法推导了积分球时间常数的一般表达式、积分球对δ函数形式的功率波形的变换表达式、积分球对任意光功率波形的变换表达式及其反变换表达式。

The equation of time constant of an integrating sphere is derived . The equations of transform of light power waveform with δ function and arbitrary functions and the equation of reverse transform are derived too .

脉冲波形的微分变换

Differential transform technique of Pulse Waves

重点阐述在进行相关对比前，对原始波形的积分变换以及积分函数的设计方法。

Focal point in this paper is integral transformation and integral function design for original waveform .

研究表明，不同呼吸音信号的时域波形以及不同变换后的波形都存在着差异。

It is found that the waveforms in time domain and in transform domain of different respiratory sound signals are different .

对电弧电压波形的傅立叶变换表明，电源引起的波动是喷枪电弧电压波动的主要因素，而喷枪电弧阳极斑点游动引起的波动是很小的。

The Fourier transition of the arc voltage waveforms shows that the fluctuation of them is mainly attributed to the fluctuation of power supply , while the motion of arc root has little effect on them .

最后，基于LabView设计了一个电力暂态信号小波分析软件雏形，其功能涉及波形显示、小波变换、后处理分析、电力暂态信号的检测与分类等。

A software prototype of electric power transient signal wavelet analysis instrument based on Lab VIEW is designed in the last part , and it possesses the function including waveform show , wavelet transform , post-analysis and detection and classification .

函数发生器MAX038是具有整机功能的、将波形的产生和变换电路综合在一起的集成芯片。

The function generator MAX038 has complete machines function , the integrated chip synthesize of undee produce and transfer circuit .

为获得与电网同步且低失真的三相正弦波基准源，结合“时钟法”及锁相环原理，设计了基于检测变压器和高精度波形发生器MAX038的变换电路。

A kind of sin-wave generator circuit using MAX038 IC and detecting transformers based on the clock method and PLL theory was designed .

功率步进电动机电流波形的补偿和变换

The compensation and transformation of current waveform of power step motors

雷达目标回波波形识别的多重变换方法

Waveform Recognition of Radar Target Returns Using Multiple Transform Methods

特别对用于电网波形矫正的数学变换进行介绍。

Particularly , the mathematics transform used in power system waveforms rectify is introduced .

瞬态信号波形提取的子波变换方法

Extraction of Transient Signal Waveforms Using Wavelet Transform