解析信号(Analytic Signal)或预包络(Pre-Envelope) 对于给定的实信号x(t)x(t),其Hilbert变换为 x^(t)=x(t)∗1πtx^(t)=x(t)∗1πt 定义解析信号 ψ(t)=x(t)+jx^(t)ψ(t)=x(t)+jx^(t) 解析信号本质上是原信号的正频谱部分,是实信号的一种“简练”形式,常称为x(t)x(t)的预包络,...
Bandpass Signal In subject area: Computer Science A bandpass signal refers to a signal whose spectrum is contained within a specific frequency band, such as the Nth Nyquist band where the spectrum is within [−Nπ/T, −(N−1)π/T] ∪ [(N−1)π/T, Nπ/T]. This type of sign...
求翻译:bandpass signal是什么意思?待解决 悬赏分:1 - 离问题结束还有 bandpass signal问题补充:匿名 2013-05-23 12:21:38 正在翻译,请等待... 匿名 2013-05-23 12:23:18 带通滤波器信号 匿名 2013-05-23 12:24:58 带通信号 匿名 2013-05-23 12:26:38 带通信号 匿名 2013-05-23 1...
A. Prokes, Generalized sampling theorem for bandpass signals, EURASIP J. Appl. Signal. Process. 2006 (2006) 1-6.Generalized sampling theorem for bandpass signals. Ales Prokes. EURASIP J. Appl. Signal Process . 2006A. Prokes, "Generalized sampling theorem for bandpass signals," EURASIP J. ...
The digital quadrature sampling theorem for bandpass signal is presented and the optimum design for the sampling system is also discussed in this paper.关键词: Bandpass signal Quadrature sampling Sampling theorem Aliasing 被引量: 6 年份: 2001 ...
SECOND-ORDER NONUNIFORM SAMPLING FOR THE FAST RECOVERY OF BANDPASS SIGNAL二阶非均匀带通采样信号的快速恢复Nonuniform samplingFFTInterpolation recoveryAliasingFrequency-shiftingFast recovery and frequency-shifting of real bandpass signal based on second-order sampling is discussed. Using FFT and complex ...
is a bandpass signal. Extensive comparisons with other methods for deconvolving bandpass signals on measured seismic data traces (including the Novaya Zemlya event) illustrate the improvement in the deconvolution 展开 关键词: Theoretical or Mathematical, Experimental/ convolution deconvolution geophysical ...
Abstract A subspace-based blind Signal-to-Noise Ratio (SNR) estimation algorithm for digital bandpass signals in Additive White Gaussian Noise (AWGN) channel is discussed. The lower bounds of the mean and variance of the estimation are derived, and simulations are performed for the commonly used ...
the sampling frequency more than quadruple bandwidth does not promise the alias-free sampling with bandpass signal, conflicts exist between the decrease of alias-free sampling frequency and the requirements with the width of signal's guard-band and the accuracy of sampling clock, the relationship as...