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首页> 外文会议>Integrated Communications, Navigation and Surveillance Conference, 2009. ICNS '09 >Surveillance accuracy analysis of ADS-B supporting the separation service in western China
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Surveillance accuracy analysis of ADS-B supporting the separation service in western China

机译：中国西部地区支持分离服务的ADS-B监测精度分析

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Currently, the Civil Aviation Administration of China (CAAC) is developing a promising new surveillance technology Automatic Dependent Surveillance-Broadcast (ADS-B) in western China, with the aim of resolving the lack of surveillance methods there caused by the complex terrain and costly maintenance. By virtue of ADS-B technology, more timely, accuracy and abundant information about aircraft could be provided. Consequently, the separation service may potentially be more feasible and efficient, which means the minimum safe-separation distance between aircraft could be achieved more credibly and thus the airspace capacity would be increased. However, because the traditional separation standards are developed only for radar, it cannot be straightly utilized by ADS-B technology. In this paper, the latest progress of ADS-B development in western China is introduced. Then the measured position accuracy is considered for evaluation of ADS-B performance. In virtue of these methods, real flight test data from Chengdu to Jiuzhai was collected and used to analyze the accuracy quality to support the separation service in western China. During the validation flight tests, the true locations of the aircraft are determined by onboard real-time kinematic (RTK) receiver. The downlink ADS-B position reports are used to verify the ADS- B error model and calculate the separation error. For the measured position accuracy, an assessment method is proposed to compare ADS-B with radar data, and ADS-B is proven to provide accuracy performance equal to or better than traditional radar. For the separation position accuracy, the separation between two waypoints is estimated and compared with the RTK baseline data. Sometimes the two points may be tracked by different sensors and thus the errors caused by asynchronous updates should be unified, which is solved by extrapolation algorithms. According to the ADS-B accuracy analysis results and required surveillance accuracy of radar in support of -nseparation service, ADS-B surveillance method is capable enough to accommodate the separation service of radar.
机译：目前，中国民航总局（CAAC）正在中国西部地区开发一种有前途的新监视技术，即自动相关监视广播（ADS-B），以解决由于地形复杂，成本高昂而导致的监视方法缺乏的问题。保养。借助ADS-B技术，可以提供有关飞机的更及时，准确和丰富的信息。因此，分离服务可能会更可行，更有效，这意味着可以更可靠地实现飞机之间的最小安全分离距离，从而增加空域容量。但是，由于传统的分离标准仅针对雷达而开发，因此ADS-B技术无法直接利用它。本文介绍了中国西部ADS-B开发的最新进展。然后考虑测量的位置精度以评估ADS-B性能。通过这些方法，收集了成都到九寨的真实飞行测试数据，并用于分析准确性质量，以支持中国西部的分离服务。在验证飞行测试期间，飞机的真实位置由机载实时运动（RTK）接收器确定。下行链路ADS-B位置报告用于验证ADS-B误差模型并计算分离误差。对于测得的位置精度，提出了一种评估方法，将ADS-B与雷达数据进行比较，并且证明ADS-B可以提供与传统雷达相同或更好的精度。对于分隔位置精度，估计两个航路点之间的分隔并将其与RTK基线数据进行比较。有时，这两个点可能由不同的传感器跟踪，因此，由异步更新引起的错误应该统一起来，这可以通过外推算法解决。根据ADS-B精度分析结果和支持分离服务的雷达要求的监视精度，ADS-B监视方法足以容纳雷达的分离服务。

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