| PQSIM：一个面向分段函数的定性仿真算法 |
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| 引用本文： | 张琪,邵晨曦,白方周.PQSIM：一个面向分段函数的定性仿真算法[J].信息与控制,2001,30(2):120-123. |
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| 作者姓名： | 张琪 邵晨曦 白方周 |
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| 作者单位： | 中国科学技术大学计算机系 |
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| 基金项目： | 国家自然科学基金资助项目(批准号：69974038) |
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| 摘 要： | QSIM算法针对的是连续函数，无法处理不同状
态满足不同约束的问题．PQSIM算法作了相应改进，增加两个新的约束：判断约束IF和赋值
约束EQ，限定约束作用的状态集合，从而可以有效地对分段函数系统进行定性仿真．本文给
出实例验证算法的正确性，算法时间复杂性证明PQSIM算法是一个高效的定性仿真算法．
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| 关 键 词： | 定性仿真 分段函数 判断约束 赋值约束 |
| 文章编号： | 10002-0411(2001)02-120-04 |
PQSIM:A QUALITATIVE SIMULATION ALGORITHM FOR THE SYSTEM WITH PIECEWISE FUNCTIONS |
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| ZHANG QI,SHAO Chen-xi,BAI Fang-zhou.PQSIM:A QUALITATIVE SIMULATION ALGORITHM FOR THE SYSTEM WITH PIECEWISE FUNCTIONS[J].Information and Control,2001,30(2):120-123. |
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| Authors: | ZHANG QI SHAO Chen-xi BAI Fang-zhou |
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| Abstract: | QISM algorithm requires that variables in the system must be continuous, so it can't solve the problem with different constraints in different states. PQSIM algorithm improves on this point. Two constraints are added to PQSIM, Constraint IF and Constraint EQ, to constrict the state sets effected by constraints. PQSIM can simulate the system with piecewise functions qualitatively and effectively. An instance is given to testify the correctness of this algorithm. At last we analyzed the complex of PQSIM to prove that it is a good algorithm. |
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| Keywords: | qualitative simulation piecewise function constraint IF constraint EQ |
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