一种判别目标稳速稳向的纯方位算法

针对潜艇隐身攻击的纯方位算法，提出一种判定目标稳速稳向态势的算法；该算法要求潜艇在一定时间内稳速稳向运动，通过设定的至少3个相同周期间隔，利用声纳测得目标的4个舷角数值，按照4个舷角的逻辑关系形成的模型进行计算结果比较分析，可确认目标是否处于稳速稳向态势；经仿真验证，该算法具有逻辑符合性；这种判定目标稳速稳向的纯方位解算数学模型可以满足实际需求。

Bearings-Only Algorithm on Distinguishing the Stability of Speed and Course of Aim

A kind of bearings-only mathematics model on the distinguishing to stability of speed and course of aim was offered,because it can be served on bearings-only mathematics of submarine for dormant attack.Using this algorithm,ubmarine will be moved with steady speed and course at the stated time which is compartmentalized for three equal periods at least,and then it can give four shipboard angles of aim from its sonar.The model consisted of logic relation about four shipboard angles was compared and analyzed on its calculation result.The stability of speed and course of aim was affirmed.By validating from emluator,the algorithm is logical.It can asatisfy the practical demands that the kind of bearings-only mathematics model on the distinguishing to stability of speed and course of aim.