物体识别程序，识别部分目标，如轮船，飞机，遥感图像-recognition programming for some target

海面上一轮船沿直线匀速前行,速度为30公里小时,船上有一雷达可用来测距-The surface of a ship moving at a constant speed in a straight line, the speed of 30 kilometers hour, there was a radar can be used to distance