本文所述方法,很容易直接推广于二维阵列情况进行空间信号二维到达角的无模糊估计。
It is easy to expend our method to estimate the two dimensions (2d) DOAs of spatial signals. The numerical results s...
文章将图像的模糊估计和传感器的模板噪声检测篡改的方法结合起来,对多幅图像操作,实验证明有不错的检测效果。
This article USES blur estimation and sensor noise to detect forgery. The performance of the proposed method is demonstrated on several forged images and has been proved to have good effect.
本文提出了模糊时间序列分析的理论和方法,研究了模型形式及其参数估计问题。
In this paper, the theory and method of fuzzy time series analysis are presented, the model form and the parameters estimate problem are studied.
在被调整模糊系统基础上,提出了一种非线性系统在线估计参数的在线辨识算法。
Moreover, based on this modified fuzzy system, the paper presents an on line identifying algorithm with which the on line parameter estimation of nonlinear system is realized.
利用模糊系统的径向高斯函数网络对一类非线性时变系统的状态进行了估计。
Radial Gaussian function networks based on fuzzy systems is applied to the state estimation of nonlinear time varying systems.
通过对算例的分析,提出需要解决的问题:整周模糊度、实时钟差和天顶湿延迟的估计方法。
After the examples are analyzed, there are problems which need to be solved such as ambiguity, real-time clock bias error and the estimate method of zenith wet delay.
以模糊集合理论为基础,提出了最小不确定度约束下的极大可能性估计准则、解算方法和迭代步骤。
Based on the theory of fuzzy set, the paper presents a new method of parameter estimation-maximum possibility estimation restricted by least uncertainty.
根据模糊推理估计集成不确定边界,利用双曲正切函数代替符号函数实现软切换连续控制。
The integration uncertain border value is estimated by fuzzy inference and the soft switch control is accomplished by tanh (x) function replacing SGN (x).
基于模糊逻辑,无偏最小方差估计(UMVE)和单元平均(CA)提出一种新的恒虚警检测器(FUCAP)。
False Alarm Rate (CFAR) detector (FUCAP) based on Fuzzy logic, Unbiased Minimum-Variance Estimation (UMVE) and Cell Averaging (CA) is presented in this paper.
模糊逻辑控制用来估计系统未知的不确定性因素,并同时保证了闭环系统在变结构控制到达阶段的鲁棒性。
The frizzy logic control is used to estimate the unknown uncertainties, and guarantees the robustness of the closed-loop system in the reaching phase synchronously.
通常的参数估计方法如加权最小二乘,只能给出浮点解,包括模糊度向量也只是实数解。
Through standard parameter estimation like weighted least squares only the "floating solution" - including the vector of ambiguity-can be given.
利用模糊建模方法处理可松弛约束的能力,提出一种估计电力系统电压安全成本的新方法。
A new method to evaluate voltage security cost is presented using the capability of fuzzy modeling method in dealing with relaxed constraints.
适当地选取时延和非均匀阵列阵元位置,该方法的信号频率和2 D到达方向估计无模糊。
With choosing signal time delay and element location of nonuniform array properly, the estimated frequencies and 2 D directions of arrival are unambiguous.
与基于分数低阶统计量的空域处理方法相比,该文提出的算法利用了信号在模糊域中的信息,提高了算法的估计精度。
Comparison with the spatial processing method using fractional lower order statistics, the proposed algorithm provides more precise DOA estimates by using the ambiguity domain information of signals.
基于信息分配方法建立的内集-外集模型,用于计算可能性-概率风险,可以表达概率估计的模糊性。
The interior outer set model, based on the method of information distribution, can represent the imprecision of probability estimation when it is used to calculate a possibility probability risk.
在分析了目前的拥塞控制算法的基础上,将随机估计学习算法(SELA)和模糊逻辑的知识引入拥塞控制,提出了新的拥塞控制模型。
Based on analysis of the current congesting algorithm, a new congesting control mechanism is proposed, which employs SELA (stochastic estimator learning algorithm) and fuzzy logic controller.
实验结果表明:该方法能有效地估计离焦模糊参数和复原模糊图像。
Results show that the proposed PSF parameter estimation technique and the defocused image restoration are effective.
基于中国余数定理解频率模糊和解线调方法,提出一种无模糊欠采样的宽带线性调频信号的调频斜率和初始频率的估计算法。
Based on the remainder theorem and direct dechirp operation, an algorithm for estimation of chirp rate and initial frequency of the subsampling wideband LFM signal unambiguously is presented.
针对偏置环境下图像分割问题,提出了一种基于偏置场估计的模糊聚类算法。
A novel FCM segmentation algorithm is proposed based on bias field estimation with respect to the segmentation issue of defocused images with illumination patterns under bias field.
本文基于模糊概率概念,给出了光源发光强度稳定性好或差的可能性的模糊概率估计结果。
Based on the concept of fuzzy probability, this paper gives the results of estimation by fuzzy probability for the possibility of good or bad stability of luminous intensity of the luminaire.
为了有效复原退化图像,需要从模糊图像中估计模糊函数的某些参数、噪声统计量等相关信息。
In order to restore blur image effectively, certain parameter of blur function and statistical value of noise have to be estimated.
然而科学家还没弄清楚生物视觉系统为何能如此精确的估计模糊程度。
But scientists didn't know how biological visual systems estimate blur so well.
按照耐奎斯特空间采样定理,阵元间距超过半波长将会带来方位估计的周期性模糊。
Extending the uniform intersensor spacing beyond a half-wavelength would lead to a set of cyclically ambiguous direction-of-arrival estimates, in accordance with the spatial Nyquist sampling theorem.
针对频域信道盲估计的相位模糊问题,提出了基于非对称调制星座的频域信道盲估计方法。
Aiming at the phase ambiguity of the blind channel estimation in frequency domain, a blind channel estimation method in frequency domain based on dissymmetrical modulation constellation was proposed.
提出了改进的特征结构子空间算法,采用二维联合估计方法,解决了原算法存在的角度估计模糊问题。
A new approach is presented of the eigen-structure subspace algorithms, the problem of ambiguous estimation in the original algorithm is solved and array architecture is optimized.
给出了估计P SF的方向和模糊范围D的频谱方法。
Then it proposes the spectral method for estimating the direction of PSF and blur extent d.
利用马尔柯夫估计,推导了GPS整周模糊度估计矢量和导航定位参数估计矢量的表达式,以及相应的协方差矩阵;
The GPS integer ambiguity estimates, the navigation parameter estimates and their variance-covariance matrix are derived by using Markovian estimation.
利用马尔柯夫估计,推导了GPS整周模糊度估计矢量和导航定位参数估计矢量的表达式,以及相应的协方差矩阵;
The GPS integer ambiguity estimates, the navigation parameter estimates and their variance-covariance matrix are derived by using Markovian estimation.
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