發(fā)布時(shí)間：2019-05-16 17:57

【摘要】：為解決太陽同步回歸軌道的標(biāo)稱設(shè)計(jì)問題,提出一種基于高精度重力場(chǎng)的半解析優(yōu)化方法。建立地球非球形引力攝動(dòng)階數(shù)為J_(15)的高精度重力場(chǎng)解析模型,并分離出引力攝動(dòng)的長期項(xiàng)和長周期項(xiàng)。構(gòu)建回歸軌道從半長軸到平交點(diǎn)周期的對(duì)應(yīng)關(guān)系,平交點(diǎn)周期變化隨引力攝動(dòng)階數(shù)的提高而逐漸收斂。通過微分修正迭代算法所確定的半長軸相對(duì)于傳統(tǒng)J_2攝動(dòng)模型的半長軸確定值具有更高的精度和更好的穩(wěn)定性�？疾鞌z動(dòng)短周期項(xiàng)影響下的密切交點(diǎn)周期,結(jié)果表明其受初始位置(平近點(diǎn)角)影響較大,變化范圍為0.015 s,并由此給出精確回歸軌道優(yōu)化設(shè)計(jì)的基準(zhǔn):不同的初始位置上滿足星下點(diǎn)軌跡嚴(yán)格回歸的半長軸期望值。
[Abstract]:In order to solve the nominal design problem of solar synchronous regression orbit, a semi-analytical optimization method based on high precision gravity field is proposed. A high precision analytical model of gravity field with non-spherical gravitational perturbation order J15 is established, and the long-term and long-period term of gravitational perturbation are separated. The corresponding relationship between the period of regression orbit from half long axis to flat intersection point is constructed, and the periodic variation of flat intersection point converges gradually with the increase of gravitational perturbation order. The semi-long axis determined by differential correction iterative algorithm has higher accuracy and better stability than that of the traditional J 鈮，

本文編號(hào)：2478461