论文部分内容阅读
从理论上证明了三部多普勒天气雷达联合测量大气风场的误差分布是一组同心圆，同心圆的圆心位置与三部雷达的相对位置和各部雷达的测速精度有关。各种误差分布半径与各部雷达的测速精度和误差的大小有关。如果三部雷达的测速精度相同，联合探测的最佳布局是等边三角形、其边长ｌ与各部雷达的测速精度、要求的探测误差和雷达的最大探测距离（Ｌ）有关。当三部多普勒天气雷达的测速精度都是１ｍ／ｓ时，如果要求的探测误差小于或等于２ｍ／ｓ，这时边长与雷达的最大探测距离之间的关系为：ｌ＝０．５５Ｌ。
It is theoretically proved that the error distribution of the three wind fields measured by the three Doppler weather radars is a set of concentric circles. The position of the center of the concentric circle is related to the relative position of the three radars and the precision of each radar. All kinds of error distribution radius and the radar speed measurement accuracy and the size of the error. If the velocities of the three radars are the same, the optimal layout of the joint detection is an equilateral triangle whose side length l is related to the speed measurement accuracy of the individual radars, the required detection error and the maximum radar detection distance (L). When the accuracy of three Doppler weather radars is 1m / s, the detection range is less than or equal to 2m / s. The relationship between the side length and the maximum detection range of radar is: l = 0. 55L.