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- The weak signals of ship are analyzed by means of higher order spectral technique based on Non Gaussian AR model. 摘要采用高阶谱分析方法,基于非高斯AR参数模型对舰船微弱水声信号进行双谱分析。
- Two basic hypothesizes about sources of non Gaussian distribution and statistically independence are used directly or indirectly in BSS. 在对ICA/BSS方法的评述中,指出串行ICA(基于非高斯性最大化的ICA)和并行ICA,都直接或间接地利用了两个基本假设:源信号的非高斯分布(串行ICA允许有一个源为高斯分布)以及源信号之间互相独立性。
- This method can also be used in other signal processing field to estimate white Gaussian noise. 该方法还可以用于其它信号处理领域高斯白噪声的估计。
- GUO Lixin,WANG Yunhua,WU Zhensen.Application of modified two scale model for scattering om non gaussian sea surface[J].Chinese Journal of Radio Science,2007,22(2):212-218. [7]郭立新;王运华;吴振森.;修正双尺度模型在非高斯海面散射中的应用[J]
- However, some reservoir parameters and well logs only have fractal character called fractional Gaussian noise (FGN). 迄今为止 ,没有人对此做出明确解释。
- The white Gaussian noise was successfully separated from noise signal in low-field pulse NMR system and its parameters were estimated by using this method. 采用该方法从实际低场脉冲核磁共振系统噪声信号中分离出高斯白噪声并对其进行了参数估计。
- A novel method of phase difference estimation under Gaussian noise is proposed to improve the precision of Coriolis mass flowmeter. 为提高其精度,提出了一种高斯噪声背景下的科氏质量流量计相位差估计新方法。
- The function of receiver resisting distance declining and additive white Gaussian noise in PPM,PAM and BPSK is researched in important. 重点研究了在脉冲位置调制、脉冲幅度调制和二进制相移键控调制方式下;接收机抗距离衰落和加性高斯白噪声性能.
- The simplest, yet very useful method for detecting a known deterministic signal in additive Gaussian noise is matched filter(MF). 高斯噪声中的已知 确定信号的检测,最为简单而有效的方法是匹配滤波器。
- This paper proposes an adaptive identification algorithm for nonminimum phase ARMA models in additive colored Gaussian noise. 本文提出了一种加性有色高斯噪声中因果非最小相位ARMA模型的自适应辨识算法。
- Its detection feature is robust to the Gaussian noise and is invariant with respect to the attenuation and the phase rotation induced by subchannels. 该算法利用高阶累积量检测特征实现对子信道调制方式的检测,所提出的检测特征可抑制高斯噪声的影响。
- Simulation results show that the algorithm is effective to reduce the impacts of impulse noise, white Gaussian noise and Gaussian colored noise. 仿真实验结果表明:该算法对于冲击噪声有抑制作用,对高斯白噪声、高斯有色噪声也有一定的抑制效果。
- In the presence of additive white Gaussian noise, an adaptive wavelet-based de-noising algorithm for speech enhancement applications is proposed. 针对加性高斯白噪声的情况,提出一种自适应小波降噪算法,用于语音信号的增强。
- The average bit soft value of new scheme is researched and the formula of BER in the additional white Gaussian noise (AWGN) channel is derived. 研究了该方案在重传之后各个比特的平均软值,并推导了在高斯白信道下重传前后不同比特的误比特率。
- It also applies Maximum A Posteriori (MAP) estimation techniques to remove Gaussian noise without damaging edges or details of the image. 此外,它还利用了最大后验概率(MAP)估计以及相应优化算法的特点,在去除高斯噪声的同时,保护边缘和细节信息。
- physical statistical non Gaussian model 物理统计非高斯模型
- The motion of plunger of oleo damper excited by colored Gaussian noise with exponential correlation time is governed by first order nonlinear differential equation. 摘要油液阻尼器受指数型高斯色噪声外激励时,活塞在油腔内的运动可用一阶非线性动力学方程描述。
- In this paper, we propose a new method for recovering binary code sequences from base-band, FSK or PSK signals transmitted through Gaussian noise channel. 摘要提出了一种从经过高斯信道传输的基带信号、FSK、PSK信号中正确的恢复原二进位码序列的新方法。
- Due to existence of error weight estimation, performance of RAKE receiver in correlated channel is analyzed when tap weight error is dependant of Gaussian noise. 针对RAKE接收机在接收信号时抽头系数估计有误差的情况,研究了在高斯噪声与抽头系数误差不独立时,在相关Nakagami信道下的接收的性能。
- The experimental results show that the watermarking scheme is robust against attacks such as cropping, Gaussian noise corrupting, resampling, and requantizating. 仿真实验表明,该算法在抵抗加性噪声和裁剪攻击等方面达到了较高的鲁棒性。