Verification of a Fully Numerical Entry Guidance Algorithm
Verification of a Fully Numerical Entry Guidance Algorithm
复制标题
DOI：
10.2514/1.g000327
复制
发表时间：
2016-01
影响因子：
2.6
通讯作者：
P. Lu;Christopher W. Brunner;Susan J. Stachowiak;Gavin F. Mendeck;M. Tigges;C. Cerimele
中科院分区：
文献类型：
--
作者：
P. Lu;Christopher W. Brunner;Susan J. Stachowiak;Gavin F. Mendeck;M. Tigges;C. Cerimele
本文介绍了先进进入引导算法（称为全数值预测校正进入引导（FNPEG））的验证过程、方法和两年努力的结果。 FNPEG 是一种基于模型的数值制导算法，能够执行直接（轨道或亚轨道）进入和跳过进入任务。几乎不需要依赖于车辆的调整，并且不需要参考轨迹或依赖于任务的规划。该算法适用于具有不同升阻比的各种车辆，并具有最先进的能力，可以有效控制重力负载并抑制长周期振荡，而不会对制导精度产生不利影响。 FNPEG 已在 NASA 约翰逊航天中心猎户座飞船的高保真模拟环境中进行了广泛的测试和评估。本文描述了验证方法和过程。定义了验证的指标。广泛的测试和模拟研究...
The process, methodology, and results of a two year effort are presented in this paper on verification of an advanced entry guidance algorithm, called Fully Numerical Predictor-corrector Entry Guidance (FNPEG). FNPEG is a model-based numerical guidance algorithm capable of performing both direct (orbital or suborbital) entry and skip entry missions. Few vehicle-dependent adjustments are necessary, and no reference trajectory or mission-dependent planning is required. The algorithm is applicable to a wide range of vehicles with different lift-to-drag ratios and includes state-of-the-art capability to effectively control g load and damp out phugoid oscillations, without adversely affecting the guidance precision. FNPEG has undergone extensive testing and evaluation in the high-fidelity simulation environment for the Orion spacecraft at NASA Johnson Space Center. In this paper, the verification methodology and process are described. The metrics for verification are defined. Extensive testing and simulation r...