系统研制周期 meaning in Chinese

system development cycle

The following conclusions have been drawn from this research program , : ( 1 ) the model following architecture allows for straightforward implementation of requirements of handling quality standard , and it can be utilized for helicopter handling quality design . ( 2 ) the adaptive model - inverse control theory can provide the referenced helicopter with consistent handling quality throughout its operating envelope , with requiring only an approximate linear model at a single operating point . ( 3 ) the technology of adaptive neural network model - inverse control can reduce costs and period associated with pcs development
通过该课题的研究，得到以下结论： ( 1 )参考模型跟踪结构能够直接实现飞行品质规范要求，可以用于直升机飞行品质设计； ( 2 )自适应模型逆控制方法只需一个基准状态下的近似线性模型，却可在整个使用包线内提供协调一致的飞行品质； ( 3 )自适应神经网络模型逆控制技术可节约成本，缩短飞控系统研制周期； ( 4 )在某些部件部分意外失效或战损情况下，自适应神经网络具有实现控制的在线快速重新配置、保持飞行品质的潜力； ( 5 )轨迹跟踪控制器可以用于任务科目基元仿真及飞行品质评估。