第二章:水下目标跟踪 ......................................................................................................22 2.1 声纳系统基本原理 ................................................................................................................22 2.1.1 传输损耗 ......................................................................................................................23 2.1.1.1 声速剖面 (SVP) .............................................................................................24 2.1.1.2 声音传播路径 ......................................................................................................25 2.2 反潜战目标的声源 .............................................................................................................32 2.3 声纳浮标设备 .............................................................................................................................34 2.4 被动声纳浮标 .............................................................................................................................35 2.5 DIFAR 声纳浮标 .............................................................................................................................37 2.5.1.1 系统操作 .............................................................................................................37 2.5.1.2 信号处理技术及其局限性..................39 频谱分析 ................................................................................................40 2.6 研究进展及现状 ..................................................................................48 2.6.1 目标检测 ......................................................................
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