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基于Volterra 级数并行递推AP算法的陀螺漂移预测
自适应辨识 陀螺漂移预测 AP算法
2014/9/19
为了预测某导弹陀螺漂移趋势, 以该陀螺漂移角速度时间序列为对象, 建立基于Volterra 级数的非线性时间预测模型, 提出了一种基于Volterra 级数的并行递推放射投影AP 自适应算法. 以系统Volterra 核向量增量的模与某约束总和为损失函数, 按照最陡下降原理导出各阶Volterra 核更新公式; 再利用矩阵求逆引理递推求取各阶Volterra 子系统自相关逆矩阵导出算法. 某导弹实...
针对粒子群优化算法易出现早熟收敛的问题, 提出了基于Lotka-Volterra 模型的双群协同竞争粒子群优化算法(LVPSO). LVPSO 算法借鉴种群生态学中著名的Lotka-Volterra 双群协同竞争模型, 讨论了两种种群协同竞争方案,通过群内和群间竞争增加粒子的多样性, 提高了种群摆脱局部极值的能力. 对5 个典型基准测试函数进行优化实验表明, LVPSO 在收敛速度和优化精度方面均...
Almost Sure Stability of Linear Ito-Volterra Equations with Damped Stochastic Perturbations
stochastic functional-dierential equations Ito-Volterra equations uniform asymptotic stability pathwise stability simulated annealing
2009/4/29
In this paper we study the a.s. convergence of all solutions of the It^{o}-Volterra equation [ dX(t) = (AX(t) + int_{0}^{t} K(t-s)X(s),ds),dt + Sigma(t),dW(t) ] to zero. $A$ is a constant $dtimes d$ m...
A note on ergodic transformations of self-similar Volterra Gaussian processes
Gaussian process deterministic kernel Brownian motion
2009/3/27
We derive a class of ergodic transformation of self-similar Gaussian processes that are Volterra, i.e. of type X_t = int^t_0 z_X(t,s)dW_s, t in [0,infty), where z_X is a deterministic kernel and W is ...
A note on ergodic transformations of self-similar Volterra Gaussian processes
note ergodic transformation Gaussian processes
2009/3/23
We derive a class of ergodic transformation of self-similar Gaussian processes that are Volterra, i.e. of type X_t = int^t_0 z_X(t,s)dW_s, t in [0,infty), where z_X is a deterministic kernel and W is ...
基于Volterra频域核辨识的非线性模拟电路故障诊断
非线性电路 故障诊断 Ｖｏｌｔｅｒｒａ级数
2014/8/29
基于Ｖｏｌｔｅｒｒａ级数时域频域混合模型，提出了辨识非线性模拟电路频域核的故障诊断方法．利用混合模型辨识算法和范德蒙特法估计各种故障状态下电路响应的前３阶频域核，提取故障特征并与相应的故障模式一起构成特征样本集，借助于支持向量机多分类器进行分类识别，实现非线性模拟电路的故障诊断．阐述了诊断原理及诊断步骤，并给出了诊断实例．仿真结果表明，该方法的故障识别率较高，便于计算机计算．