扫描昆虫雷达实时数据采集、分析系统

利用自行设计、制作的扫描昆虫雷达数据采集分析系统,对扫描雷达回波的VGA图像信号进行单帧采集和多幅序列采集,经过图像处理、参数自动识别和回波的自动分析、计算后可得到昆虫活动的方位、高度、距离、密度、飞行的方向和速度等一系列迁飞活动数据。对迁飞昆虫活动实时监测,实现该类害虫的准确预测和有效治理具有非常重要的作用。

A data acquisition and analysis system for the scanning entomological radar

A data acquisition and analysis system for the scanning entomological radar images developed by the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences was introduced. In this system, the VGA signal from the radar's digital PPI display is captured as a single-frame or a multiple-frame bitmap images. The images were processed and the radar parameters were auto recognized by the analysis software. Then the migration parameters for the over flying population-density, speed, direction, flux, collective orientation and their variances were estimated. This computer based image-analysis technique had proved effective in recent observations.