[4] J BENKHOFF, G MURAKAMI, W BAUMJOHANN et al. BepiColombo-Mission overview and science goals. Space Science Reviews, 217, 90(2021).

[6] J POLK, G SOULAS, A HOSKINS. Electric propulsion：a key enabling technology for planetary exploration. https：//baas.aas.org/pub/2021n4i480/release/1

[10] P ZHANG, J LI, S GONG. Fuel-optimal trajectory design using solar electric propulsion under power constraints and performance degradation. Science China Physics, 57, 1090-1097(2014).

[11] F JIANG, H BAOYIN, J LI. Practical techniques for low-thrust trajectory optimization with homotopic approach. Journal of Guidance Control and Dynamics, 35, 245-258(2012).

[12] H LI, S CHEN, H BAOYIN. J2-Perturbed multitarget rendezvous optimization with low thrust. Journal of Guidance，Control，and Dynamics, 41, 802-808(2018).

[13] F JIANG, G TANG, J LI. Improving low-thrust trajectory optimization by adjoint estimation with shape-based path. Journal of Guidance Control & Dynamics, 40, 3282-3289(2017).

[14] H LI, H BAOYIN, F TOPPUTO. Neural networks in time-optimal low-thrust interplanetary transfers. IEEE Access, 7, 156413-156419(2019).

[15] L CHENG, Z WANG, F JIANG et al. Fast generation of optimal asteroid landing trajectories using deep neural networks. IEEE Transactions on Aerospace and Electronic Systems, 56, 2642-2655(2019).

[16] S CHEN, H LI, H BAOYIN. Multi-rendezvous low-thrust trajectory optimization using costate transforming and homotopic approach. Astrophysics and Space Science, 363, 128(2018).

[17] H SHEN. No-guess indirect optimization of asteroid mission using electric propulsion. Optimal Control Applications and Methods, 39, 1061-1070(2018).

[24] J SIMS, P FINLAYSON, E RINDERLE et al. Implementation of a low-thrust trajectory optimization algorithm for preliminary design, 6746(2006).

[26] S CARLETTA, M PONTANI, P TEOFILATTO. An earth-mars microsatellite mission leveraging low-energy capture and low-thrust propulsion. Acta Astronautica, 200, 635-646(2022).

[29] D R GRAHAM, J A ENGLANDER, N J RATTENBURY et al. Low-thrust trajectory design from lunar rideshare to venus capture. Journal of Spacecraft and Rockets, 59, 2070-2083(2022).