Optimization of Adaptive MTI Filter

Moving target indication (MTI) is an effective means for radar to find moving targets in clutter environment. This paper introduces the basic principles of MTI, how to avoid the blind speed problem and the optimization of MTI filter. Implementing the multi-notch adaptive moving target indication (AMTI) filter that designed by using the stagger code in varied cases, which is based on a feature vector method optimization.

一种改善单脉冲雷达测角精度的新方法

提出了一种基于最大平均改善因子的自适应动目标显示(AMTI)和APES算法提高测角精度的新方法。在单脉冲雷达系统中,雨杂波降低了多普勒频率检测精度,从而降低了雷达的跟踪能力。传统的动目标显示(MTI)和快速傅里叶变换(FFT)不能满足精密跟踪的要求。为了抑制雨杂波,选择了基于最大平均改善因子的自适应MTI方法。此外,还选用了APES方法来提高频率估计精度。相对于传统的MTI和FFT方法,新的方法具有更好的多普勒频率估计精度,从而可提高比幅法测角精度。最后通过仿真证明了该方法的有效性。