|Table of Contents|

Analysis of pseudospectral methods applied to aircraft trajectory optimization(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2014年05期
Page:
61-68
Research Field:
研究与设计
Publishing date:

Info

Title:
Analysis of pseudospectral methods applied to aircraft trajectory optimization
Author(s):
HU Song-qi;  CHEN Yu
Key Laboratory of Combustion, Thermal Structure and Internal Flow Field, Northwestern Polytechnical University, Xi'an 710072, China
Keywords:
pseudospectral method;  air vehicle;  trajectory optimization
PACS:
V412-34
DOI:
-
Abstract:
The pseudospectral methods are widely used in the field of aircraft trajectory optimization. There is lack of relevant literatures about comprehensive research and analysis on the pseudospectral methods at home and abroad. The development status of the pseudospectral methods in the field of aircraft trajectory optimization is described in this paper. The characteristics, application situation, advantages and disadvantages of the four common pseudospectral methods are analyzed. They are Legendre pseudospectral method, Gauss pseudospectral method, Radau pseudo-spectral method and Chebyshev pseudospectral method. Difficulty in dealing with bang-bang control problems is introduced . The improvement about the pseudospectral methods are summarized. The algorithm was improved and some optimization methods combining with other algorithms were studied. Generally speaking, the pseudospectral methods have a wide application prospect in the trajectory optimization.

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