摘要
就导航系统抗干扰性能评价问题指标的多层次性,根据模糊模式识别的原理,对现有的模糊模式识别方法进行改进,提出了一种新方法。该方法首先将系统分为3个等级,并把它们看作3个模糊模式,根据试验所测得的数据构造各模式的隶属函数,然后采用反向递推的方法从指标体系的最底层出发依次计算待评系统与各模式的加权贴近度,最后由模糊模式识别的择近原则得出待评系统所属的等级。最后应用此方法对某一导航系统进行评价,给出此系统所属的等级。
In the light of the multiple stratification of anti-jamming evaluation index of INS, by improving existing fuzzy pattern recognition methods,the paper gives a new method. This method is based on fuzzy pattern recognition theory. Firstly, the INS systems are divided into three grades which are looked upon three fuzzy patterns. By using the datum, the membership functions of every patterns can be obtained. Secondly,beginning from bottom indexs,the closeness degrees of the system to the patterns are calculated. Then according to the selecting closeness principle, the results of evaluation are obtained. At the last, by using this method,an INS example is evaluated and the result is gived.
出处
《舰船科学技术》
2009年第2期97-99,133,共4页
Ship Science and Technology
基金
国家自然科学基金项目资助(70671066)
关键词
综合评价
模糊模式识别
惯性导航系统
贴近度
comprehensive evaluation
fuzzy pattern recognition
inertial navigation system （INS）
closeness degrees
