一种低功耗水下目标被动定位系统设计

为满足新一代水下自主式无人自动检测系统中被动定位系统对系统功耗、实时性和精度的要求,设计了基于微功耗器件THS1206与TMS320VC5509A水下被动定位系统硬件平台,和以具有良好精度和实时性的互谱算法为基础的软件系统。由于采用了较多的基元时延信息,使得整个系统在保证实时性的前提下仍具有较高的定位精度。试验结果表明,所设计的系统实时性良好,定位精度高,功耗低于70 mW,达到了新一代被动定位系统的特殊要求,具有良好的应用前景。

Design of Ultra-low Power System for Passive Underwater Target Localization

In order to satisfy the needs of ultra-low power,long working time,and high accuracy for new generation passive underwater target localization system,we designed a hardware platform based on ultra-low power devices THS1206 and TMS320VC5509A,and a software platform based on the cross-spectrum algorithm with perfect accuracy and real-time per-formance.Benefiting from the adoption of much more time delay information,the whole system holds high localization accu-racy as well as satisfactory real-time performance.Experimental results show that the designed system gains low power con-sumption（less than 70 mW）,high real-time computation performance and localization accuracy,meeting the special require-ments for the new generation passive underwater target localization system.