帧周期 meaning in English
fram time
frame period
frame time
frame timing
image duration
picture period
Examples
- In the air combat simulation , since the system runs in the way of time frame cycle , the flying locus of the weapon , such as missile , changes as a dispersing function , and its movement is much faster than the target ( moving or static ) comparatively , so some errors emerge when the collision test is calculated between the weapon and the target
摘要空战仿真中，由于仿真系统采用时间帧周期方法调控系统的解算，致使导弹等武器的飞行弹道呈离散函数变化，而导弹等武器的飞行相对于靶标（运动或静止）是一个快速运动，这样，武器与靶标的碰撞解算就会引出很多误差问题。 - In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar . firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied . secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions . then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account . finally ， the adaptability of this search strategy is discussed . only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively . thus ， optimal search is adaptively implemented in the whole surveillance area
本文提出一种分区搜索算法，实现了相控阵雷达的自适应最优搜索.首先，研究了各区域平均发现一个目标消耗的雷达资源和目标被发现的平均时间同搜索帧周期以及目标强度的关系；然后，研究了在各区域采用两步搜索算法的最优参数设计，实现了局部区域的最优搜索；其次，在雷达时间资源有限和区域重要性加权的约束条件下，导出了使目标被发现的平均时间最小的区域最优帧周期；最后，讨论了分区搜索算法的自适应性.只要采用各区域的最优参数，按最优帧周期调度雷达波束，就可以自适应地实现使目标被发现的平均时间最短的波束的最优分布和扫描顺序，即自适应最优搜索