The study on the characteristics of scattering from an underwater target is only the base that the active sonar works on but also the source which new ideas, new theories and new methods come from.
水下目标声散射特性研究是主动声纳赖以工作的基础，也是主动探测产生新思想、新原理、新方法的基础。
By discussing the identification equation of submarine searching, and common characteristics of search methods, a simple mathematic searching model for dipping sonar is given.
分析了吊放声纳发现判决方程、各种搜潜方法的共性特征，在此基础上将探测、发现目标的问题逐步转换成易于求解的数学模型。
Aiming at the problem of underwater object location in bistatic sonar, the paper discussed six basic location methods and an optimized method of two-dimensional.
针对双基地声纳水下目标定位问题，讨论了二维目标定位的六种基本方法以及优化方法。
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