Targeter Tracker 007 Pdf Download
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The SPx Tracker uses multi-hypothesis association. As measurements from radars are imperfect, the ability to simultaneously consider multiple interpretations offers significant improvements in performance over simpler single-hypothesis trackers.
The behaviour of the tracker may be configured through a set of tracking parameters that control many aspects of the tracker's performance, including min/max speed of target, multi/single hypothesis association, fixed/adaptive gain and more.
SPx Server supports target tracking from secondary surveillance radar (SSR) transponder video, including decoding of the interrogation mode information. If the SSR/IFF transponder video is sampled with sufficient resolution, codes from interleaved mode 1, 2, 3/A and C responses can be extracted. This information then forms part of the plot and is passed onto the tracker to assist with tracking.
The tracker maintains an active track database, updated with new plot data from the data extraction stage. New tracks are added automatically or from a manual request (operator input or external process).
For each hypothesis, the tracker updates the current estimated position with the new measurement. If the measurement were known to be completely accurate, the update process would believe the measurement and the new estimate would be exactly the measured value. For various reasons, the measurement is inaccurate so the update process must take a weighted combination of the expected position and the measured position. This is the track filtering. SPx offers a number of track filtering modes. The simplest mode uses fixed gains in the components of the measurement. This can be successful for tracking applications where the target is clearly identified and relatively clutter free.
The tracking behaviour parameters may be set initially from a configuration file and may be adjusted during operation of the tracker using either a customer GUI or network interface. Parameters include:
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