基于短时傅立叶变化反鱼雷鱼雷主动声引信浅水检测方法  

Detection method of anti-torpedo torpedo's active acoustic fuze in shallow water based on STFT

作　　者：崔户山[1,2] 崔贵平[3] 王明洲[1,2] 崔鑫山[2] 

机构地区：[1]中国船舶重工集团公司第七〇五研究所,陕西西安710075 [2]水下信息与控制重点实验室,陕西西安710075 [3]中国船舶重工集团公司军工部,北京100081

出　　处：《舰船科学技术》2012年第6期87-90,共4页Ship Science and Technology

摘　　要：反鱼雷鱼雷在浅水工作时,背景混响干扰强,攻击目标具有高速、尺寸小的特点。发射信号应选用高频率、窄脉冲来抗混响干扰。而对高速、小目标的检测,在频域内通过不同多普勒频移将混响与目标区分开来,可降低强混响背景干扰。利用信号在频域的特征可以获得较好的检测效果。The anti-torpedo torpedo works in shallow water, where the reverberation plays an important role, and the target is high-speed and small-size, so the beam signal should have high frequency and narrow pulse. For detecting efficiently, high-speed and small-size targets and the reverberation can be differentiated by different frequency shift, which debases interference. These characters in frequency domain help to get better detection effect.

关 键 词：反鱼雷鱼雷 短时傅立叶变换 混响 

分 类 号：E925.23[军事—军事装备学]