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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Update with out-of-sequence measurements in tracking: exact solution
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Update with out-of-sequence measurements in tracking: exact solution

机译：跟踪中不按顺序进行测量更新：精确的解决方案

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摘要

In target tracking systems measurements are typically collected in "scans" or "frames" and then they are transmitted to a processing center. In multisensor tracking systems that operate in a centralized manner, there are usually different time delays in transmitting the scans or frames from the various sensors to the center. This can lead to situations where measurements from the same target arrive out of sequence. Such "out-of-sequence" measurement (OOSM) arrivals can occur even in the absence of scan/frame communication time delays. The resulting "negative-time measurement update" problem, which is quite common in real multisensor systems, was solved previously only approximately in the literature. The exact state update equation for such a problem is presented. The optimal and two suboptimal algorithms are compared on a number of realistic examples, including a GMTI (ground moving target indicator) radar case.
机译：在目标跟踪系统中，通常将测量结果收集在“扫描”或“帧”中，然后将其传输到处理中心。在以集中方式运行的多传感器跟踪系统中，将扫描或帧从各种传感器传输到中心通常会有不同的时间延迟。这可能导致来自同一目标的测量不按顺序到达的情况。即使在没有扫描/帧通信时间延迟的情况下，也可能发生这种“不按顺序”的测量（OOSM）到达。由此产生的“负时测量更新”问题在实际的多传感器系统中非常普遍，以前仅在文献中得到了解决。给出了针对此类问题的确切状态更新方程式。在许多实际示例中比较了最佳算法和两个次优算法，包括GMTI（地面移动目标指示器）雷达案例。

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