共查询到19条相似文献,搜索用时 171 毫秒
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多传感器多平台多目标数据融合系统中的数据对准研究 总被引:4,自引:0,他引:4
数据对准是数据融合系统中相关、跟踪和识别等功能的基础。通过研究多传感器多平台多目标战术数据融合仿真系统,对该系统数据对准的功能层次作了探讨,并根据海上目标的特点,设计和实现了相应的时间对准算法和空间对准算法。 相似文献
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在半潜式起重平台立柱快速压载舱的液位测量过程中,由于可能存在传感器故障和外界干扰等因素,从而产生观察野值并导致系统输出的可靠性降低。针对此问题,本文提出一种基于多传感器鲁棒容积卡尔曼融合(Multi-Sensor Robust Cubature Kalman Fusion,MSRCKF)的液位估计算法。借鉴Huber等价权函数的思想,引入一个自适应因子以抑制观测野值对容积卡尔曼滤波的影响,再通过基于扩展信息滤波的矩阵变换推导出近似等效于集中式融合的MSRCKF算法。仿真结果表明,MSRCKF算法可以在单传感器发生故障的情况下有效地提高液位测量系统估计值的可靠性和稳定性。 相似文献
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本文以潜艇C^3I系统需求为背景,介绍了有序分层融合模式及其相应算法。仿真和加载试验表明,该模式成功地解决了多传感器多目标信息的融合处理问题。 相似文献
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介绍了多传感器信息融合技术的概念,分析了多传感器集成与信息融合、方法与算法的问题,论述了潜艇大气环境多传感器信息融合技术研究的必要性。 相似文献
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基于贝叶斯推理的多传感器最佳融合规则不能用于多目标的信号判定,本文对改进的多目标多传感器信号融合算法和经典算法进行了仿真,讨论了仿真结果,并对两种算法进行了比较。 相似文献
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舰载多传感器信息融合技术初探 总被引:1,自引:0,他引:1
本文对舰载作战指挥系统多传感器信息融合的需求进行了分析,提出了舰载系统多传感器信息融合的结构及理论算法,给出了软件实现的具体方法。文章对舰载系统多传感器信息融合进行了从抽象到具体的探讨,研究了适合于舰载系统多传感器信息融合的具体实现、融合数据的使用等关键技术;对信息融合进行了总体设计,给出了实现的理论算法;并对信息融合对系统通讯、资源和接口的影响作了研究。 相似文献
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基于Kohonen神经网络的多传感器数据关联算法 总被引:2,自引:0,他引:2
提出了一种基于Konhonen神经网络的多传感器多目标跟踪数据关联算法,该方法是将多传感器的测量数据进行自组织聚类,从而实现测量数据的关联,利用融合估计完成对多目标的状态估计,计算机仿真结果表明了该算法的有效性。 相似文献
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星敏感器是一种高精确度的姿态测量仪器,它通过对观测到的星点进行识别来计算姿态。为了能够较好地测试和验证星识别系统的性能,设计了一个基于ANN算法的星识别仿真平台。通过对该星识别仿真平台性能的测试,表明该仿真平台能够方便,实时地测试星识别算法的性能与正确性,因此说它是一种具有较好实用价值的星识别仿真平台。 相似文献
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In the normal operation condition, a conventional square-root cubature Kalman filter (SRCKF) gives sufficiently good estimation results. However, if the measurements are not reliable, the SRCKF may give inaccurate results and diverges by time. This study introduces an adaptive SRCKF algorithm with the filter gain correction for the case of measurement malfunctions. By proposing a switching criterion, an optimal filter is selected from the adaptive and conventional SRCKF according to the measurement quality. A subsystem soft fault detection algorithm is built with the filter residual. Utilizing a clear subsystem fault coefficient, the faulty subsystem is isolated as a result of the system reconstruction. In order to improve the performance of the multi-sensor system, a hybrid fusion algorithm is presented based on the adaptive SRCKF. The state and error covariance matrix are also predicted by the priori fusion estimates, and are updated by the predicted and estimated information of subsystems. The proposed algorithms were applied to the vessel dynamic positioning system simulation. They were compared with normal SRCKF and local estimation weighted fusion algorithm. The simulation results show that the presented adaptive SRCKF improves the robustness of subsystem filtering, and the hybrid fusion algorithm has the better performance. The simulation verifies the effectiveness of the proposed algorithms. 相似文献
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水下潜器改进S面控制及控制系统仿真(英文) 总被引:1,自引:0,他引:1
S surface controllers have been proven to provide effective motion control for an autonomous underwater vehicle (AUV). However,
it is difficult to adjust their control parameters manually. Choosing the optimum parameters for the controller of a particular
AUV is a significant challenge. To automate the process, a modified particle swarm optimization (MPSO) algorithm was proposed.
It was based on immune theory, and used a nonlinear regression strategy for inertia weight to optimize AUV control parameters.
A semi-physical simulation system for the AUV was developed as a platform to verify the proposed control method, and its structure
was considered. The simulation results indicated that the semi-physical simulation platform was helpful, the optimization
algorithm has good local and global searching abilities, and the method can be reliably used for an AUV. 相似文献
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以MATLAB6.5为工作平台,设计了基于模糊逻辑工具箱的模糊控制器,编制了变尺度混沌算法的优化程序,建立了水翼艇可调桨推进的数学模型和仿真模型;通过对模糊控制器系数优化,并将优化后的系数代入仿真模型中,进行大量的实时仿真,仿真结果表明:无论是从超调量方面还是从稳定性方面,变尺度混沌优化模糊控制器都有很好的控制效果. 相似文献
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To provide a simulation system platform for designing and debugging a small autonomous underwater vehicle’s (AUV) motion controller, a six-degree of freedom (6-DOF) dynamic model for AUV controlled by thruster and fins with appendages is examined. Based on the dynamic model, a simulation system for the AUV’s motion is established. The different kinds of typical motions are simulated to analyze the motion performance and the maneuverability of the AUV. In order to evaluate the influences of appendages on the motion performance of the AUV, simulations of the AUV with and without appendages are performed and compared. The results demonstrate the AUV has good maneuverability with and without appendages. 相似文献