一种基于功率谱特征参量的水中目标辐射噪声非母板匹配分类识别方法

An algorithm for the non-motherboard-matching identification of the radiated noise of underwater target

本文阐述了一种非母板匹配的水中目标辐射噪声分类识别的思想、技术路线及算法的计算机实现关键技术。该算法基于提取水中目标辐射噪声信号功率谱中的最强谱带位置、线谱位置、线谱根数、线谱平均间隔等特征参量,通过特定处理后,直接给出识别结果,不需要附带庞大数据库。经试验验证,该技术突破了传统的母板匹配目标识别的算法思想,能够适用于复杂海况,做到宽容性匹配。识别效率高,识别率达到试验预期要求。

In this paper, a new idea about the identifying of the noise of underwater target is described. It＇s based on the pick-up of the characteristic parameters （such as the position of the frequency band. the line spectrum and others） of the noise signal radiated from an underwater target. The algorithm is non-motherboard-matching, which is completely different from the earlier ones in this area. It gives the result directly without the need of searching the motherboard database. As a result, this arithmetic matches most situations of the ocean. The efficiency of the identification is in a high level. And the identifying rate accords with our anticipation in an ocean.