Indirect Method

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A trajectory optimization approach that derives optimal control laws from necessary conditions (such as the Pontryagin Minimum Principle) and solves the resulting two-point boundary value problem via shooting methods. Provides theoretical optimality guarantees but is sensitive to costate initial guesses.

Application Value

This concept is applicable in cislunar space mission design, orbit optimization, and trajectory planning for spacecraft transfers and maneuver strategies.

References

  • Zhang et al. - 2025 - Smoothing technique for indirect low-thrust trajectory optimization in cislunar space
  • Song 等 - 2021
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Contributors: ouyangjiahong, Ou Yang Jiahong