該文將粗糙集理論引入不完備信息系統下的輻射源識別。基于粗糙集理論，給出了一種新的不完備信息系統下輻射源識別模型。該方法以相似關系、相容關系作為基礎，通過知識約簡和決策規則的提取，較好地解決了不完備信息系統的輻射源識別問題。以雷達輻射源用途識別為例給出實例分析，說明了該模型處理不完備信息識別問題的有效性。
關 鍵 詞 決策規則; 輻射源識別; 不完備信息系統; 粗糙集

In practical reconnaissance environment, reports with emitter parameter values take on uncertainty, illegibility and contradiction. In order to solve emitter recognition problems in incomplete information system, a new emitter recognition method based on rough set theory is presented in this paper. This recognition method does not change original information and can find decision rules directly from incomplete decision table. Examples of recognizing the radar emitter are given to demonstrate this new method. Experimental results show that this recognition method is effective.
Key words decision rules; emitter recognition; incomplete information system; rough set