在辨识实际系统时,非平稳噪声扰动是较多见的。
The systems disturbed by nonstationary noise are often encountered in the practical identification.
该算法无需先验知识和参考信道,且对平稳或非平稳噪声均适用。
This algorithm doesn't need priori knowledge or reference channel, and it can be used in the stationary or nonstationary noise environment.
实验表明:非平稳噪声在时域中是可以识别的,与传统的噪声频域检测方法相比,分辨率有明显的改善。
Simulation results show that non-stationary noise can be identified in time domain and resolution improvement is obvious compared with that of conventional noise detection in frequency domain.
针对语音激活检测的鲁棒性问题,提出在非平稳噪声环境下使用基于复高斯混合模型的鲁棒语音激活检测算法。
In order to improve the robustness of voice activity detection (VAD), the use of an algorithm based on complex Gaussian mixture model under nonstationary noisy environments was presented.
在考虑多通道非平稳信号干扰及背景噪声的情况下,提出了基于自适应参数型时间延时估计方法。
Taking into account the multi channels disturbance and noises with the non stationary characteristic, time delay estimation based on adaptive parametric approach is proposed.
在非平稳非高斯背景噪声下,使用经典信号检测理论对信号进行检测往往难以达到理想的效果。
If the background noise is nonstationary and non-Gaussian, the effect of classic signal detection theory is not satisfying.
该文利用小波包变换的时频局部分析能力,研究了非高斯分布平稳随机噪声的统计特性,揭示了非高斯噪声信号的信号结构。
By exploiting wavelet packet transform to analyze signals both in time and frequency space, this paper researches the statistic property of non-Gaussian stationary noise and its signal structure.
循环平稳处理方法对高斯色噪声不敏感,对非高斯色噪声也有较强的抑制作用,而且在低信噪比情况下工作良好。应用于低信噪比环境中。
Cyclostationary method is not sensitive to the Gaussian color noise and can do with non Gaussian color noise as well, which is proved to be effective in low SNR environment.
针对陀螺稳定平台系统中光纤陀螺信号噪声的非平稳性特点,分析并讨论了光纤陀螺输出信号模型及常用陀螺信号滤波方法的优缺点。
Aiming at the non-stationary character of signal noise of fiber optic gyro (FOG) in the stabilized platform, the signal model of FOG and some methods of noise reduction are analyzed and discussed.
它可统一处理滤波、平滑和预报问题,且可处理非平稳信号和噪声。
It can handle the filtering, smoothing and prediction problems in a unified framework, and can handle nonstationary signals and noises.
利用逆序法对驱动桥噪声信号的平稳性进行了验证,指出其噪声信号为非稳态信号。
Reversed order method is used to prove that the noise of driver axle is a nonstationary signal.
首先通过跟踪平稳噪声能量,检测能量变化非平稳的信号;
First, the noise energy is tracked to detect the unstable signal.
该方法不同于传统的基于FFT分析的声强计算方法,可以实现对非平稳故障噪声信号的分析,为机电设备的噪声监测和故障诊断提供了一条研究途径。
The method differs from traditional FFT transform in its capability to analyze nonstationary noise signals of faulty mechatronics equipments. It offers a way for noise monitoring and fault diagnosis.
心电信号是一种微弱低频的非平稳信号,具有随机性和噪声背景强等特点。
ECG signal is a weak low frequency non-stationary signal, and possessing random character and noisy setting strong character.
这种方法更有效地抑制了空间的非平稳和固定噪声比使用一个可旋转的主瓣中的2-D平面空的自适应的成形波束形成方法。
This method more effectively suppresses spatial nonstationary and stationary noise than the adaptive null-forming beamformer method by using a rotatable main lobe in the 2-D plane.
按照阵元噪声功率是否相等以及阵元间噪声的相关性,本文将色噪声分为空间平稳色噪声以及空间非平稳色噪声。
We can divide the colored noise into stationary colored noise and non-stationary colored noise by their sensor noise power and the relativity between their sensor noise.
本文给出了一种计算非线性系统在非白噪声激励下非平稳响应的方法。
Rectifying current and efficiency of a non-Gaussian noise calculated using the Monte Carlo method;
本文给出了一种计算非线性系统在非白噪声激励下非平稳响应的方法。
Rectifying current and efficiency of a non-Gaussian noise calculated using the Monte Carlo method;
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