Apply B spline basic function to give parametric formula of NURBS curve, raise a practical method of determing knot array.
使用Ｂ样条基函数给出ＮＵＲＢＳ曲线的参数定义式，提出一种确定节点序列｛ｔｉ｝ｎ＋ｋｉ＝０的实用方法。
Fist the writers analyzed the working theory of radar sampling,and then gave two mathematic illations of the intersect point sequence,at last,aiming at the practical requirement of the simulation system,the article established the simplified model of the intersect point sequence.
分析了雷达采样工作原理,对两种求解交会点序列的算法进行了数学推导,针对仿真系统实际需求,建立了交会点简化模型。