aliasing frequency

research shows that the investigated interference signals and geoelectric field signal are aliasing in frequency domain.

研究表明地电场信号与被研究的各种干扰信号在频率域上多有混叠，用常规的滤波方法不能滤除这些干扰。

Naturally, wavelet transform is a band-pass filter, which cannot effectively extract harmonics signal of different frequency at discretion. Moreover, wavelet transform has the disadvantage of spectrum aliasing leakage phenomenon.

小波变换的实质是一个带通滤波过程，不能有效提取出任意频率的谐波信号，会出现频谱混叠现象。

this paper presents a method for eliminating frequency aliasing in digital frequency measurement with sub-nyquist sampling over a wide bandwidth.

提出了一种宽带数字测频中欠采样测频的解模糊方法。

signal aliasing induced by high frequency jam is one of the key cases which affect the properties of fiber-optic hydrophone systems.

高频混叠是影响光纤水听器系统性能的一个关键因素。

Analysis on Frequency Aliasing in the Sampling of Lowpass and Bandpass Signals

低通和带通信号采样的频谱混叠分析

Author suggests that increasing number of measurement taps and prolonging sampling time and enhancing sampling frequency will decrease signals aliasing and leakiness.

并提出在进行压力脉动试验时，应增加测点、延长采样时间、提高采样频率以避免信号遗漏和信号混叠等现象的发生。