基于ADS-B数据的航空器终端区排放评估

Assessment of Aircraft Terminal Area Emission Based on ADS-B Data

机场终端区是航空器运行过程中最为复杂的区域,也是航空器污染物排放量评估的难点所在。通过对ADS-B报文数据的解码、过滤、坐标转换等过程,提取航空器终端区内飞行轨迹。建立航空器终端区飞行不同阶段的污染物排放评估模型,以国内某机场终端区为例,解析出某一时段内终端区内航空器的飞行轨迹,计算出终端区航空器的排放情况,并对不同阶段污染物排放情况进行了具体分析。结果表明,离场航空器排放量明显大于进场航空器排放量,两者差距主要来源于滑行和进离场阶段,因此优化进离场程序,改进机场地面运行方式是降低终端区污染物排放的关键。

The airport terminal area is the most complicated area in the course of the aircraft operation,and it is also the difficulty to estimate the aircraft pollutant emission in this area.Through The processes of ADS-B message data decoding,filtering,coordinate conversion etc,the aircraft flight path in terminal area is extracted.A model of aircraft emission assessment at different stages of aircraft terminal area is established.The flight trajectory of the aircraft in the airport terminal area is analyzed with one airport terminal area in China.The emissions of aircraft in the terminal area are calculated and pollutant emissions are analyzed in detail.The results show that the emissions of departure aircraft are significantly larger than the emissions of approach aircraft.The gap is mainly derived from the phase of taxi,approach and departure,so it is the key to reduce pollutant emissions of the terminal area that optimize the procedures of approach and departure,and improve the way of airport ground operation.