最小生理噪声进场航迹飞行管理方法

 微波着陆系统MLS的最优航迹计算以减小居民最敏感的生理噪声为基本优化性能准则,用感觉噪声级Sone为单位。计算了考虑了噪声传播时温度、风梯度、沿进场航迹附近区域生活居民区分布位置及密度等影响。通过对杜塞尔道夫-罗奥申航空港计算结果证实,使航空港附近居民的平均有效感觉生理噪声级(Sone)较原有Jeppesen标准方式降低了20％以上。

FLIGHT MANAGEMENT PROCEDURES FOR PHYSIOLOGICAL NOISE-MINIMAL LANDING TRAJECTORIES

The future world-wide installation of the newly developed Microwave Landing System(MLS)will permit a four-dimensional (incl.time)guidance of aircraft in the airport area with the combined advantages of safer, more economical flight paths with less detri mental environmental impact such as noise nuisance. The purpose of this paper is to demonstrate that the introduction of these advanced navigation and flight guidance technologies will make it possible to compute and to apply continuously time-dependent command inputs for an aircraft in a way which will minimize the noise annoyanoe for the popula tion living in the neighborhood of the airport. The average physiological Hffective Perceived Noise Level in Sone as cost criterion is minimized with consideration of the (in the investigations for the optimization calculations)including not only the location and population density of living areas along the approach trajectory but also the effects of temperature and wind gradients on noise propagation. The results obtained for the Airport Dasseldorf-Lohausen show that, even are taken into account numerous design, comfort, and safety constraints, the noise exposure for the average airport area inhabitant could be reduced by over 20% relatively to conventional Standard Jeppesen Manual landing approach if the proposed optimal flight landing trajectory management procedure would be applied.