基于无前瞻量最小时戳的自适应推进算法
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摘要
GALT(greatest available logical time,最大可能逻辑时间)算法是HLA(high level architecture,高层体系结构)时间管理服务能否高效实现的关键技术.为解决现有GALT算法可能会出现消息丢失及推进速度缓慢等问题,提出一种新的基于无前瞻量最小时戳的自适应推进算法(APMTL).此算法在计算输出时间时最小时戳项时不加入前瞻量,并动态调整其他项的前瞻量.将此算法在空空导弹分布式仿真系统上进行测试,结果表明不会丢失消息且加快了系统推进速度.
Greatest available logical time(GALT)algorithm is the key technology which decides whether the time management service of high level architecture(HLA)can be realized efficiently.The existing GALT algorithms may lead to message missing and propulsion slowing down.To solve these problems,a new adaptive propulsion algorithm(APMTL)was proposed based on minimum timestamp without preassigned time.The time preassignment was not included into the minimum timestamp term when the time output was to be calculated,and the time preassignment in other terms was adjusted dynamically.This algorithm was tested on the air-to-air missile distributive simulation platform,and the result showed that the system would not miss the message and the propulsion of the system was accelerated.
Greatest available logical time(GALT)algorithm is the key technology which decides whether the time management service of high level architecture(HLA)can be realized efficiently.The existing GALT algorithms may lead to message missing and propulsion slowing down.To solve these problems,a new adaptive propulsion algorithm(APMTL)was proposed based on minimum timestamp without preassigned time.The time preassignment was not included into the minimum timestamp term when the time output was to be calculated,and the time preassignment in other terms was adjusted dynamically.This algorithm was tested on the air-to-air missile distributive simulation platform,and the result showed that the system would not miss the message and the propulsion of the system was accelerated.
引文
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[2]刘步权,王怀民,姚益平,等.HLA时间管理中的死锁问题研究[J].电子学报,2006,34(11):2038-2042.
[3]唐京桥,侯朝桢.HLA中时间管理算法死锁的规律性[J].计算机工程,2005,31(15):27-29.
[4]刘步权,王怀民,姚益平,等.一种无死锁的时间管理算法[J].软件学报,2003,14(9):1515-1522.
[5]唐京桥,侯朝桢.HLA中时间管理算法死锁问题的分析[J].计算机应用,2005,25(z1):358-360.
[6]唐京桥,侯朝桢.对GALT算法的理论性分析[J].系统仿真学报,2005,17(5):1111-1114.
[7]陈亮,卢厚清,王锋,等.HLA时间管理算法中输出时间的研究[J].系统仿真学报,2009,21(11):3303-3306.
[8]周晓滨,方洋旺,许勇,等.基于动态滑模的无死锁时间管理算法[J].计算机工程,2008,34(5):14-16,19.
[9]杜星玥,卢昱,陈立云,等.RTI时间管理的一种新型动态尺度标注算法[J].计算机应用研究,2012,29(6):2188-2191.
[10]韩晓东,翟正军,丁超,等.一种基于广义表的HLA乐观时间推进算法[J].计算机工程,2012,38(4):251-253,256.
[11]曹海旺,薛朝改,黄建国,等.HLA步进联邦时间管理性能的影响因素分析[J].计算机应用研究,2011,28(2):521-524.
[12]吉桂琴,王司,乔佩利,等.HLA时间管理中Lookahead的设置与调整[J].哈尔滨理工大学学报,2006,11(1):108-111.