相控阵天线数据率的自适应控制技术

根据相控阵天线能够按照实际需求选择波束驻留时间的特点,提出了按照某种规定的最优准则对目标进行自适应采样的数据率控制技术。利用变采样间隔滤波技术,把数据率分成若干档,根据目标的运动轨迹,选择不同档次的数据率。对机动目标的采样率高于直线飞行目标的采样率,通过数据采样率提升,可以避免目标丢失,并能准确预测下一时刻的位置,实现目标的精确跟踪。

Adaptive Data Rate Control of Phased Array Radar

According to the Dwell time selectable on demand in phased array radar system, this paper presents an adaptive data rate control method by adaptive sampling to targets according to an optimal criteria specified. With variable interval sampling filter, the data rates can be graded and adjusted to different levels.- A certain level of data rate can be chosen according to the track of a maneuvering target in order to control data rate adaptively. The sampling rate for maneuvering target is higher than the one for linear flight target. Through the increment of the data sampling rate, the target missing can be avoided and the position of the target at the next moment can be predicted precisely, which improves the tracking accuracy.