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首页> 美国政府科技报告 >The Semi-Operational Evaluation of the Trajectory Prediction Method for Signal Automatic Radar Processing (Sarp) 2
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The Semi-Operational Evaluation of the Trajectory Prediction Method for Signal Automatic Radar Processing (Sarp) 2

机译：信号自动雷达处理（sarp）轨迹预测方法的半运算评估2

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Results of the evaluation under semi-operational conditions of the SARP 2 trajectory prediction method are presented. Flight data of some 1000 inbound, outbound and transit flights in the Netherlands FIR were analyzed. In the SARP 2 software, the elapsed time computations for the successive reporting points are based on the ground speed of the aircraft and the lengths of the straight segments connecting these reporting points. Ground speed is computed using true airspeed obtained from the filed flight plan or stored aircraft performance data and the wind component. The design objective of 120 sec was achieved in most cases. Trajectory prediction is acceptable in the present SARP environment. For inbound, outbound, and transit flights, 60 to 70% of the aircraft show a trajectory computation error less than 45 seconds. The mean value of the time errors is rather small, while the standard deviation is comparatively large. Possible improvements are proposed, based on more extensive use of radar and flight plan data.

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