signal-wave envelope

The extraction methods of pulse signal envelope feature using the complex wavelet transform and Hilbert transform are discussed in the article, by which we extract the rising edge, falling edge, envelope top drop and pulse width as the final feature values.

研究了对脉冲信号包络特征的提取方法，利用复小波变换和希尔伯特变换获取稳态信号包络，提取上升沿、下降沿、包络顶降以及脉宽等参数作为稳态特征。

This method not only can achieve the distortionless envelope detection of voltage flicker, but also can detect the time, frequency and amplitude of the signal accurately.

该方法不仅能够对电压闪变信号进行不失真地包络检波，而且能够精确地检测电压闪变信号的时间和包络信号的频率分量及其幅度。

Because CDMA, OFDM signal is made up of the hundreds and thousands signals, the signal has nonconstant envelope, the amplifier results in intermodulation distortion products.

由于CDMA、OFDM信号等由数百个、数千个载波信号组成，它们的信号具有非恒定的包络，放大器产生互调失真。

Detection Method of DDSS Signal by Correlation Function Envelope Peak

直扩信号的相关函数包络检测法

And simulation results illustrate that using dynamic mixing matrix coefficients got from improved algorithm can do well on the envelope extraction of signal. 3.

仿真实验结果说明：利用在线算法得到的动态混合矩阵系数对信号进行包络提取是完全可行的。

The pitch period and the spectral envelope of speech represent acoustical characteristics of the speech signal.

基音周期体现了发声过程肺部气流的周期性,而语音频谱包络是人的声道共振滤波特性在频域中的表现.

This paper choose the envelope signal as the original character of echo signal.

首先，在特征的选择上，本文选用包络信号作为回波的初始特征。

Load real amplitude envelope for the up-link signal, load trapezoid envelope for the tele-powering signal. Insert time jitter, amplitude jitter, harmonic signal characteristics, etc.5.

为上行链路信号加载真实幅度包络，为射频能量信号加载梯形包络，为C接口信号加入时间抖动、幅度抖动、谐波等信号特性。

SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration.

SPGA算法利用估计得到的侧摆对距离徙动校正前的回波数据进行包络和相位补偿。

The speed and accuracy are increased by improving the search strategy, adjusting the threshold of the video signal envelope and setting the corresponding transitive state.

通过改进搜索策略、调整视频包络信号的门限值和设置相应的过渡状态等方法，提高了自动磁迹跟踪的速度和准确性。