摘要
基于灰色理论建立了一种无人战斗机机体费用模型 ,用变化了的有人战斗机的说明性变量样本和费用样本来模拟无人战斗机的说明性变量样本和费用样本 .灰色模型由于本身的特点 ,在小样本情况下 ,估算结果精度比一般回归分析高 ,比较适合单一机种小样本费用模型的建立 .
A cost model based on gray theory is made for the airframe cost estimating of uninhabited combat air vehicles(UCAV).The sample data of UCAV is simulated by the transformation of modified manned attack fighters and the cost sample data is also created using DAPCA Ⅳ cost model for the same airplanes. Gray model has a good ability of forming a rule through accumulated generation operation and inverse accumulated generating operation. Therefore it makes gray model be used widely in model making, especially in the situation of small sample estimation.The verification results of engineering hours estimation of UCAV using gray model show that gray model can be used for UCAV airframe RDTE and EMD cost both effectively and satisfactorily.
出处
《系统工程理论与实践》
EI
CSCD
北大核心
2003年第3期117-122,共6页
Systems Engineering-Theory & Practice
基金
全国优秀博士论文专项基金 ( 2 0 0 0 5 1)
