Open Access
 Issue JNWPU Volume 40, Number 4, August 2022 875 - 882 https://doi.org/10.1051/jnwpu/20224040875 30 September 2022

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

## 1 载荷波束中心

 图1波束中心几何示意图

## 2 最短弧长

 图2载荷波束投影示意图
 图3卫星载荷侧摆覆盖区域示意图

## 3 勘查设计与轨道调整

### 3.1 勘查设计

Δλlonj描述了卫星载荷波束经过地面目标同纬度圈时载荷波束与地面目标的经度差，而消除Δλlonj的卫星轨道周期增量为ΔTj[21-22]

### 3.2 轨道调整

Δa为指定控制时刻Tc期望的轨道面内机动轨控量，可通过单次轨控或两次轨控实现最终控制目的。当采用两次轨控时，第一次轨控量可以选取期望值Δa的一半，第二次轨控需要考虑第一次控制误差，根据文中设计的计算方法重新确定控制量。

## 4 仿真算例

### 4.1 双星组网勘查

A, B卫星开普勒轨道根数

A, B卫星控前对目标勘查的可见时段

A星轨道机动半长轴控制量

A, B卫星控后对目标勘查的可见时段

### 4.2 主星和备星组网联合勘查

7颗卫星开普勒轨道根数

 图4卫星控制前勘查时段甘特图
 图5卫星控制后勘查时段甘特图

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## All Tables

A, B卫星开普勒轨道根数

A, B卫星控前对目标勘查的可见时段

A星轨道机动半长轴控制量

A, B卫星控后对目标勘查的可见时段

7颗卫星开普勒轨道根数

## All Figures

 图1波束中心几何示意图 In the text
 图2载荷波束投影示意图 In the text
 图3卫星载荷侧摆覆盖区域示意图 In the text
 图4卫星控制前勘查时段甘特图 In the text
 图5卫星控制后勘查时段甘特图 In the text

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