Abstract:With the rapid development of civil aviation industry, green aviation has gradually become the focus of people"s attention. Taking into account factors such as aircraft performance, noise impact, and atmospheric environment in the terminal area, an optimization plan for aircraft departure trajectory has been proposed. Aiming at the problem that traditional Dynamic Window Approach (DWA) cannot effectively solve in aircraft departure trajectory planning, an improved Dynamic Window Approach combined with aircraft performance is proposed. Construct aircraft departure performance constraints based on the requirements of Base of Aircraft Data (BADA) and Continuous Climb Operations (CCO). At the same time, considering the noise impact of aircraft departure, the smaller the noise impact, the better the trajectory. Secondly, under the same research environment, analyze the methods with different index weights based on the duration and area of influence, and select the methods with the smallest comprehensive impact. Finally, based on the selected method, analyze the performance parameters such as thrust, speed, and path angle of the departing aircraft. The simulation experiment results show that the trajectory under the improved dynamic window method can meet the requirements of aircraft departure performance.