|Table of Contents|

Grey Forecast about Helicopter Tracks(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2001年03期
Page:
242-246
Research Field:
Publishing date:

Info

Title:
Grey Forecast about Helicopter Tracks
Author(s):
GuXiaohui WangXiaoming ZhaoYoushou
School of Mechanics,NUST,Nanjing 210094
Keywords:
grey forecast tracks grey model
PACS:
V275.1
DOI:
-
Abstract:
The in-f light sonic noise of helicopters is presented in brief, and follow ed by a discussion on the importance of predict ion of helicopter t racks in the bat t le. How ever, it is very difficult to get an accurate and reliable predict ion w hen the data are very limited. The paper makes use of the grey system theory to solve the forecast of helicopter tracks, establishing the GM model of g rey systems and the cumulat ive residual error model of n degree, then correct ing the GM forecast model. In the period of sampling, GM model and residual error model have been established on line to improve predict ion precision. T he calculat ion of concrete examples indicates that higher prediction precision can be obtained with few er surveying data.

References:

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Memo

Memo:
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Last Update: 2013-03-25