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利用多传感器跟踪多目标技术中最重要的问题是目标关联问题,而常见的关联算法要私计算量大,要私实际动用中效果不理想。本语文提出了利用自适应遗传算法来解决在传感人、检测空域中目标个数未知情况下,单平台多传感器数据融合系统对目标进行检测时的静态数据关联问题。实验结果表明,这种算法具有很高的关联成功率,并且提高了多传感器数据融合系统的检测概率。 相似文献
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遗传算法在多传感器多目标的静态数据关联中的应用 总被引:6,自引:1,他引:5
利用多传感器跟踪多目标技术中最重要的问题是目标关联问题。而常见的关联算法要么计算量大,要么实际运用中效果不理想。本文提出了利用遗传算法来解决无杂波和漏检情况下三种不同类型、不同位置的传感器对数目未知的目标进行检测时的静态数据关联问题。 相似文献
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多传感器广义概率数据关联算法研究 总被引:2,自引:0,他引:2
随着跟踪环境、跟踪对象的不断变化与发展,目标与量测已经很难用一一对应的关系去描述;广义数据关联算法(GPDA)提出目标与量测多多对应的可行性规则,其性能在目标与量测无论是否在一一对应的情况下,均优于传统的JPDA算法,并且计算量、存储量均远小于JPDA;考虑到GPDA的上述优点,将GPDA算法拓展到多传感器数据关联,提出了多传感器广义概率数据关联算法(MSGPDA)来处理多传感器数据关联问题;仿真表明,MSGPDA算法由于利用多传感器信息,性能得到明显提高。 相似文献
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在典型应用场景下,针对传统数据关联算法易于产生目标跟踪丢失的问题,提出了并行多传感器联合概率数据关联算法(PMSJPDA),给出行多传感器联合概率数据关联算法的实现流程,并对该算法进行理论分析。最后采用两部典型雷达构成PMSJPDA数据融合系统,对其算法的目标跟踪精度进行仿真,仿真结果表明,所提出算法可有效改善对目标的跟踪性能,提高了对目标的跟踪精度。 相似文献
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邱陵 《计算机与数字工程》2008,36(11)
传统的概率数据关联算法(PDA)是在密集杂波环境下的一种良好的多目标跟踪算法,但它是针对单传感器对多目标跟踪的情况下使用,不能直接用于多传感器对多目标的跟踪.针对多传感器多目标跟踪问题,提出一种改进的PDA算法,采用FCM算法预测航迹的聚类中心,然后采用PDA方法对航迹进行跟踪.仿真实验证明此方法能有效地进行多传感器多目标的跟踪. 相似文献
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多传感器多目标跟踪广泛应用于军事和民用监视系统。数据关联和滤波技术是多目标多传感器跟踪监视系统的主要组成部分。近年来,人们开始研究模糊数据关联方法,取得了较好的效果。本文针对基于模糊聚类均值算法的数据关联方法中的一些问题,提出了一些改进的想法,仿真结果说明了其有效性。 相似文献
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Distributed interacted multisensor joint probabilistic data association algorithm based on D-S theory 总被引:1,自引:0,他引:1
With the development of science and technique, the surveillance systems used in the battlefield have been developed into multisensor systems. Therefore, the multisenor multitarget tracking algorithms, such as centralized multisensor joint probabilistic da… 相似文献
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Nabaa N. Bishop R.H. 《IEEE transactions on systems, man, and cybernetics. Part B, Cybernetics》1999,29(6):908-912
Clustering algorithms have been recently used in multitarget multisensor tracking (MMT) problems in order to reduce the size of the data association problem. This paper derives an equivalence relation (ER) clustering algorithm used in a MMT problem and briefly compares it to other clustering schemes such as the nearest neighbor method. The main contribution of this work is the analytical evaluation of ER clustering performance, in the context of multitarget multisensor tracking, as a function of the distance between targets, measurement probability density function, and cluster parameter. 相似文献
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为解决集中式多传感器系统中的多目标跟踪问题,本文运用模糊理论提出了一种多传感器模糊联合概率数据互联算法。该算法首先应用模糊数学的方法计算测量点迹与航迹测量预测之间的模糊综合相似度;然后运用阈值判别及经验概率法则给出模糊联合互联概率的计算方法,并提出了顺序处理结构的多传感器模糊联合概率数据互联算法的状态估
估计模型;最后给出了该算法与经典的多传感器联合概率数据互联算法的仿真比较。仿真结果表明,本文算法的综合性能更优越。 相似文献
估计模型;最后给出了该算法与经典的多传感器联合概率数据互联算法的仿真比较。仿真结果表明,本文算法的综合性能更优越。 相似文献
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Approximate stochastic dynamic programming for sensor scheduling to track multiple targets 总被引:1,自引:0,他引:1
The problem of sensor scheduling is to select the number and combination of sensors to activate over time. The goal is usually to trade off tracking performance and sensor usage. We formulate a version of this problem involving multiple targets as a partially observable Markov decision process, and use this formulation to develop a nonmyopic sensor-scheduling scheme. Our scheme integrates sequential multisensor joint probabilistic data association and particle filtering for belief-state estimation, and use a simulation-based Q-value approximation method called completely observable rollout for decision making. We illustrate the effectiveness of our approach by an example with multiple sensors activated simultaneously to track multiple targets. We also explore the trade-off between tracking error and sensor cost using our nonmyopic scheme. 相似文献
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目标跟踪中的传感器管理 总被引:5,自引:1,他引:5
对序贯Kalman滤波在多传感器多目标跟踪中的应用情况进行了分析,提出了一种基于费歇信息增量的多传感器对多目标的分配方法。该方法较好地解决了传感器的组合分配问题,并能对目标的跟踪精度实施控制,仿真结果证明了该方法的有效性。 相似文献
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In multisensor coordinate metrology scenarios involving the fusion of homogenous data, specifically 3D point clouds like those originated by CMMs and structured light scanners, the problem of registration, i.e. the proper localization of the clouds in the same coordinate system, is of central importance. For fine registration, known variants of the Iterative Closest Point (ICP) algorithm are commonly adopted; however, no attempt seems to be done to tweak such algorithms to better suit the distinctive multisensor nature of the data. This work investigates an original approach that targets issues which are specific to multisensor coordinate metrology scenarios, such as coexistence of point sets with different densities, different spatial arrangements (e.g. sparse CMM points vs. gridded sets from light scanners), and different noise levels associated to the point sets depending on the metrological performances of the sensors involved. The proposed approach is based on combining known ICP variants with novel point set augmentation techniques, where new points are added to existing sets with the purpose of improving registration performance and robustness to measurement error. In particular, augmentation techniques based on advanced fitting solutions promote a paradigm shift for registration, which is not seen as a geometric problem consisting in moving point sets as close as possible to each other, but as a problem where it is not the original points, but the underlying geometries that must be brought together. In this work, promising combinations of ICP and point augmentation techniques are investigated through the application to virtual scenarios involving synthetic geometries and simulated measurements. Guidelines for approaching registration problems in industrial scenarios involving multisensor data fusion are also provided. 相似文献
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在传感器观测噪声不一致或有异常数据存在的条件下,分布式数据融合因没有剔除严重偏离真实值的传感器估计值,从而影响下一步的融合估计.对此,利用概率数据互联的思想,设计以融合中心预测值为中心、传感器节点估计值为观测值的预测域,并引入定向概率数据互联,对进入预测域的传感器估计值分配权重.仿真结果表明,利用概率数据互联思想的多传感器有效地实现了数据融合,其融合精度较传统分布式融合有所提高;在异常数据明显的情况下,算法的效果更加显著. 相似文献