1. 西安交通大学电子与信息工程学院,西安,710049
2. 西安工业大学计算机科学与工程学院,西安,710032
网络首发:2011-08-10,
纸质出版:2011
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穆静 1, 2, 蔡远利 1, 等. 容积粒子滤波算法及其应用[J]. 西安交通大学学报, 2011,45(8):13-17.
Cubature Particle Filter and Its Application[J]. 2011, 45(8): 13-17.
针对使用现有粒子滤波算法对非线性/非高斯离散时间系统的状态估计精度较低的问题
提出了一种新的粒子滤波算法——容积粒子滤波(CPF)算法. 新算法使用容积数值积分原则直接计算非线性随机函数的均值和方差
产生粒子滤波算法的建议性密度函数
获得所需要的带权粒子
进而通过计算粒子均值
获得系统状态的最小均方误差估计. CPF算法由于产生粒子时使用了最新的测量信息
因而提高了对系统状态后验概率的逼近程度.仿真实验结果表明
CPF算法的估计误差约是标准粒子滤波算法和扩展粒子滤波算法误差的1/5和1/3
是无味粒子滤波(UPF)算法的估计误差的1/2
且运行时间只有UPF算法的1/3.
A new particle filter named cubature particle filter(CPF)is proposed to improve the low state estimation accuracy of existing particle filters for nonlinear/non-Gaussian discrete time systems. The CPF directly uses the cubature rule based numerical integration method to calculate the mean and covariance
to generate the proposal density function for the particle filter
and to obtain the required particles with weights. Then the minimum square error state estimation is obtained based on these particles and weights. The particles generated using the CPF algorithm involves the use of the latest measurements so that the approximation to the system posterior density is improved. Simulation results show that the estimation error of the CPF algorithm is about one-fifth of that of the generic particle filter and one-third of that of the extended particle filter
respectively
and half of that of unscented particle filter(UPF)
while the run time of CPF is only one third of that of UPF.
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频谱包络滤波器及其应用. 西安交通大学学报,2010,44(8):48-52.
高斯衍生粒子滤波器. 西安交通大学学报,2010,44(6):72-77.
阈值去噪下的改进粒子滤波算法. 西安交通大学学报,2010,44(2):31-34.
广义证据理论的基本框架. 西安交通大学学报,2010,44(12):119-124.
合成孔径雷达图像的最小均方误差线性最优滤波. 西安交通大学学报,2009,43(12):6-10.
一种自相似业务量预测的卡尔曼滤波算法. 西安交通大学学报,2009,43(4):57-61.
求积分卡尔曼粒子滤波算法. 西安交通大学学报,2009,43(2):25-28.
一种多线索融合的均值偏移跟踪算法. 西安交通大学学报,2009,43(10):42-46.
法向约束的多幅点云数据融合算法. 西安交通大学学报,2009,43(5):71-75.
一种Log-Gabor滤波器结合多分辨率分析的虹膜识别方法. 西安交通大学学报,2009,43(4):31-33.
一种基于分辨函数的属性约简算法及其应用. 西安交通大学学报,2008,42(12):1455-1458.
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