基于二阶非线性相对运动方程的寻的段交会制导研究

利用二阶非线性相对运动方程研究空间交会寻的段新的制导算法.针时传统C-W制导算法精度较低问题,提出了利用二阶非线性相对运动方程迭代修正C-W二脉冲解的制导算法.仿真结果表明,所提出的修正算法制导精度比C-W制导算法的精度高,而且计算简单,收敛速度快,具有一定的工程实用价值.

An Investigation on Homing Phase Guidance Based on Second-order Nonlinear Equation of Relative Motion

An investigation in a new guidance algorithm for homing phase of space rendezvous by using the second-order nonlinear equations of relative motion is presented. Due to the precision of traditional guidance algorithm based on C-W equations is relatively lower, a new guidance algorithm is put forward by using the second-order nonlinear equations of relative motion to iteratively correct the two-pulse process which is deduced from C-W equations. The simulation results show that the precision of the new guidance algorithm is greatly improved than that of the C-W guidance algorithm. Moreover, the calculation is simple and convergence speed is fast. Thus, the new guidance algorithm has certain practical value.