target n. 靶子,标的;目标;(嘲笑等的)对象;笑柄 (for); (储蓄,贸易等的)定额,指标;小羊的颈胸肉;【物理学】(X射线管中的)对阴极;【测】标杆,标板;【铁路】圆板信号机;〔古语〕小圆盾。 a target area 轰炸目标地区。 a target ship 靶舰。 a target buster 〔美俚〕打飞靶的人。 target practice 打靶,射击演习。 hit a target 达到定额[指标]。 one's target for tonight 〔英军俚〕女友。
The acceleration command input is determined considering the target acceleration as external disturbances , which are verified to satisfy the matching condition 如果把目标机动看作外部扰动,可以证明其满足匹配条件。
The proposed guidance law only uses the information for the target acceleration bound ; therefore the precise measuring of target acceleration during the maneuver is not required , namely , the robustness to target maneuver is archived 因而变结构制导律仅利用了目标加速度界限的信息。在拦截过程中,并不需要精确的测量目标加速度,也就是取得了对目标机动的鲁棒性。
Analysis of ambiguity - function of lfmcw radar , including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal . 3 . this dissertation advances new theories of lfmcw radar signal detection and estimation , including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform 包括基于多项相位变换的lfmcw雷达速度和加速度估计方法;基于修正多项相位变换的多目标lfmcw雷达速度和加速度估计方法;基于一般高斯噪声环境下的lfmcw雷达速度和加速度联合估计方法;另外提出了基于频域增采样内插方法以提高lfmcw雷达测距精度。
A kinematics model for 3d guidance problems is derived , a new kind of nonlinear variable structure adaptive guidance law is brought up by researching the variable structural strength item , and another fuzzy variable structure guidance law with self - adapt region is realized to enhance robustness of target acceleration estimate error of guidance law 本文建立了三维空间追逃问题的数学模型;通过对变结构控制中其变结构强度项的研究,提出一种新型变结构自适应制导律;并且考虑到对变结构强度项进行模糊化,实现一种论域自调整的模糊变结构制导律,以增强制导律对目标加速度估计误差的鲁棒性。