Because the signal processed by fuzzy controller is based on system behavior rather than its analytical model, open loop responses of a robot are described by a set of second order systems. 因为模糊逻辑控制器的控制信号是由系统的响应行为而不是由其分析模型决定的,所以机器人的开环响应可以用一系列二阶系统来描述。