基于软件声纳概念的波束稳定

声纳载体航向和姿态的变化,会使声纳出现很异常的局外数据,从而使诸如多普勒计程仪、多普勒分层流速测量仪、三维前视声纳、地形匹配导航声纳、单/多波束测深仪以及多波束鱼探仪等声纳的性能下降。如果三维声纳采用软件声纳的结构,就可以方便地实现动态波束稳定,从而使声纳的测量精度得到提高。对软件声纳、波束稳定的原理与实现途径作了分析。分析表明:若能实时地得到声纳载体的航向角、纵倾角和横摇角,并且能动态地改变波束的方向,就可以随时随刻地稳定声纳的波束。

Beam stabilization based on the conception of software defined sonar

The variations of carrier heading and carrier attitude will arise the serious outlier in sonar data and so cause the performance degradation of some sonar units, such as Doppler Velocity Log; Acoustic Doppler Current Profiler; Forward-looking Sonar; Terrain Reference Navigation Sonar; Single/Multi-beam Echo-sounder and Multi-beam Fishing Sonar. For Software Defined Sonar, it is quite easy to dynamically stabilize the beams of 3D Sonar, so the measuring accuracy of the sonar could be improved. A brief introduction to the Software Defined Sonar and the basic principle and implementation of Beam Stabilization are presented in the paper. If the heading; pitching and rolling could be obtained in real-time and the beam direction could be changed dynamically, the sonar beam is stabilized all the time.