region n. 1.地方,地域,地带;地区;行政区,管辖区,区;左近,邻近;(大气、海水等的)层,界,境。 2.【解剖学;动物学】(身体的)局部,部位。 3.(学问等的)范围,领域。 4.〔罕用语〕天空。 a fertile region 肥沃地带。 a desert region 沙漠地带。 forest regions 森林地带。 the lower [infernal, nether] regions 地狱。 the middle [lower, upper] region of the air 大气的中[下、上]层。 the operating region 工作范围。 in the region of 在…附近,在…的左右(in the region of 45 dollars 四十五美元左右)。
Is capture region of 3d ideal proportional navigation also the biggest 三维理想比例导引律的捕获区域分析
Next , to gain accurate los rate is the key for hit - to - kill since true proportional navigation ( tpn ) is convergent if the initial state between ekv and target is inside the capture region 其次,由于真比例导引本身是稳定的,所以获取一定测量精度的视线角速率是实现成功拦截的关键。
First , proper initial conditions between ekv and target are the premise of hit - to - kill . capture region is described by equations of relative motion defined in modified polar coordinate while phasetrajectory graph is introduced . and the disturbance of initial condition biase is analyzed by cadet through statistical linearization of ekv dynamical model 本文在修正极点坐标系中建立拦截器和目标之间的相对运动方程,结合相平面轨迹图,分析了大气层外动能拦截器的拦截区;对大气层外动能拦截器动力学模型进行统计线性化,采用协方差分析描述函数法,分析了初始状态误差对弹道的影响。