论文部分内容阅读
1.引言雷达測定目标的时候,由于測距的誤差以及由噪音所引起的偏差,測得的数据常常是很不准确的。現代的方法是用許多雷达同时測定目标,然后用統計的方法,将所得数据加以处理。这里不准备詳細讲这些方法。茲簡单地介紹如下: 在空間中引进一个直角坐标系oxyz。空中目标位置用矢径r表示之。現在假設有n个雷达站同时用来测定敌人目标(飞机或导弹),它們的位置分別用矢径 a_1,a_2,…,a_n表之(如图1中a_i表示第i个雷达站的位置)。目标的真正位置用矢径r表之。n个雷达所測得的位置就是以这些雷达站为中心,以各站所测得的距离§_i为半径所
1. INTRODUCTION When radar targets are measured, measured data is often inaccurate due to errors in ranging and errors caused by noise. The modern method is to use many radars to measure targets at the same time, and then use statistical methods to process the data. I will not elaborate on these methods here. It is briefly described as follows: Introduce a Cartesian coordinate system oxyz in space. The air target position is represented by vector r. Now suppose that there are n radar stations used to determine the enemy target (aircraft or missile) at the same time. Their positions are respectively represented by the vector diameters a_1, a_2, ..., a_n (as in Fig. 1 a_i represents the position of the i-th radar station) . The true position of the target is indicated by the vector r. The position measured by the n radars is centered on these radar stations, and the distance §_i measured by each station is the radius.