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1·Envelope detection and parameter estimation of each modulation component are the main parts in measurement of voltage fluctuations and flicker.

包络线的检出和调制分量参数估计是电压波动与闪变检测的主要内容。

2·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。

3·This paper describes a new high power RF amplifier's IMD signal envelope detection method and compare technology, which is used to detect and estimate the RF spectral regrowth.

采用高功率射频信号内部互调失真的包络特性检测与比较技术，对射频功率带外信号进行检测和估计。

4·On this basis, with the combination of envelope detection and correlation peak interpolation techniques, a simulation program of real-time signal detection and targeting is designed.

在此基础上，结合包络检波等技术本文设计了实时信号检测和目标定位的仿真程序。

5·When the metal signal breaks through the detection envelope, the product is rejected.

当金属信号通过休息信封检测，该产品将被拒绝。

6·Quadrature coherent detection can reserve all information of the complex envelope of signals, and it is therefore widely used in signal processing.

正交相干检波可以将复包络的所有信息进行保留，所以在数字信号处理中得到广泛应用。

7·The quadrature coherent detection is widely used in signal processing field, since it can reserve all information of the complex envelope of signal.

正交相干检波保留了信号复包络的所有信息，因而在信号处理中得到了广泛应用。

8·Method: to use Model HKY06A heart vibration sensor for the detection of the heart sound, and to form the heart sound envelope with two way hardware rectification and low frequency passed filter.

方法：使用HKY06 A心音传感器提取心音信号，使用双向检波及低通滤波实现心音包络的提取。