So the signal generated by iteration of simple chaos mathematical model get the feature of randomness and owns the statistical characteristics similar to white noise.
因此,利用简单混沌数学模型迭代产生的信号具有随机性,其统计特性类似白噪声。
The identification accuracy is related to the order of the fitting model, sample interval and sample number, and also affected by signal noise, which shows the method should be improved.
辨识精度与算法中拟合模型阶数、采样时间间隔和采样总数有关,并受信号中噪声的影响,需加以改进。
Based on the input and output signal model of a dithered ring laser gyroscope, a new method of dither signal remover utilizing adaptive noise canceling is disclosed.
根据抖动偏频激光陀螺的输入、输出信号模型,提出利用自适应噪声对消技术消除陀螺抖动信号。
A novel numerical model and an efficient algorithm are developed to calculate the powers of signal and noise light waves in multiple wavelengths bidirectionally pumping fiber Raman amplifiers.
通过合理分析提出了便于计算多波长双向抽运光纤拉曼放大器信号及噪声功率的实用数值模型,给出求解信号和噪声功率的快速算法。
Examples prove that the model can reflect the character of the ultrasonic signal and noise signal correctly, and the result of the denoising using this algorithm for TA2 titanium is satisfaction.
实例分析表明,该模型能基本反映超声检测信号的特点,而且此算法对TA2钛合金超声检测信号去噪效果比较理想。
It is this predictable signal and noise model that allows us to predict the performance of digital cameras.
可以预料,信号和噪声的模型允许我们预测数码相机的性能。
Through the computer model curve, we may clearly obtain the corresponding signal to noise ratio the bit error rate value.
通过计算机的模拟曲线,可以清楚得出对应信噪比的比特误码率值。
We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper.
文章给出了计算OXC级联信噪比的一般解析模型,并针对“信号功率均衡”和“总功率均衡”两种方案进行了研究,分析了在这两种特定情况下系统的信噪比特性。
Taking the noise elimination of the outlet temperature signal of hydrocracking reactor as an example, the effect of the model parameters of the wave filter for noise elimination was compared.
在分析线性滤波器原理的基础上,建立了化工系统动态信号的最优线性滤波器的数学模型,并以加氢裂化反应器出口温度信号的除噪为例比较了滤波器模型参数对去噪效果的影响。
The physical model of CPM is the design of a maximum energy-output filter. The basic thought is to make the ratio of the output energy of the filter between signal and noise tend to the maximum.
综合参数法物理模型的设计思想是:滤波器输出端信号的能量与滤波器输出端噪音的能量之比趋于最大。
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.
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。
In this paper, the filtering problem for ARMA signal with uncertain observation is translated into that for state and white noise of the state space model with uncertain observation.
本文将具有不确定观测的ARMA信号滤波问题转化为具有不确定观测的状态空间模型的状态和白噪声滤波问题。
The statistics modeling method of underwater noise signal is studied. The hidden Markov tree model in wavelet domain is adopted to model the sea noise and various ship-radiated noise.
研究了基于小波域多尺度树结构的水下噪声信号统计概率模型的建模方法。
Under additive Gaussian white noise environment, signal model of polynomial-phase signal is presented.
在加性高斯白噪声的背景下,建立了多项式相位信号的信号模型。
This paper attempts to preprocess ultrasonic signal by wavelet filtering based on the mathematical model of the ultrasonic echo, extracts weak echoes from signal with high noise background.
在超声反射回波的数学模型基础上,利用小波滤波方法对超声信号进行预处理,提取强噪声背景中的弱回波信号。
As the ideal mathematical model for non-Gaussian impulsive noise, a -stable distribution has been the focus of intensive research in signal processing fields.
稳定分布作为非高斯脉冲噪声的数学模型,已经成为信号处理领域的热点研究课题。
The approach of how to extract underwater acoustic signal with auditory model is studied and the auditory features of ship-radiated noise is extracted.
研究了基于听觉模型的水声信号特征提取方法,提取了舰船辐射噪声的听觉特征。
Examples prove that the model can reflect the character of the ultrasonic signal and noise correctly, and the result of the denoising using this algorithm is satisfactory.
实例分析表明:该模型能基本反映超声检测信号的特点,而且此算法对钛合金超声检测信号去噪效果比较理想。
To improve beamforming under low signal-to-noise ratio, a method based on stochastic resonance(SR)in a bistable model is investigated by using a frequency scale transformation method.
为了改善低信噪比下波束形成的性能,从双稳态随机共振模型出发,提出了利用频率尺度变换,将随机共振和波束形成结合起来的算法。
Experiments proved the validity of the model. Taking Peak Signal-to-Noise Ratio (PSNR) as criterion the best preference was found by using polynomial fitting.
通过实验验证了该算法的有效性,并以峰值信噪比(PSNR)为评价准则,利用多项式拟合方法选择了最优参数。
The spectrum of auditory model and LPC-CEP shows that this auditory model not only represents speech signal well, but also is noise robust.
通过对听觉谱和L PC倒谱对比分析,得到了听觉谱适宜用作语音识别并具有良好的噪声鲁棒性的结论。
The spectrum of auditory model and LPC-CEP shows that this auditory model not only represents speech signal well, but also is noise robust.
通过对听觉谱和L PC倒谱对比分析,得到了听觉谱适宜用作语音识别并具有良好的噪声鲁棒性的结论。
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