基于缩比模型理论的舰船轴频电场仿真系统

为防止腐蚀,舰船上采用了阴极保护系统,却产生了极低频轴频电场,而极低频轴频电场又构成了远场威胁,成为目标追踪的特征信号。提出了基于缩比模型理论的舰船轴频电场仿真系统,同时介绍了该系统的基本组成、实现方法和功能。在仿真过程中通过采用PXI总线和LabVIEW7.1可视化的虚拟仪器系统开发平台,实现了腐蚀电场信号的自动采集,并通过计算机进行分析和处理。仿真结果表明,由腐蚀产生的轴频电场是以轴转速为基频的极低频电场。

Ship Axle Frequency Electric Field Simulation System Based on to Contract Than Model Theory

In order to prevent corruption, a cathodic protection system, easily producing extremely low frequency axle frequency electric field, is adopted on board the ship. Yet, the extremely low frequency axle frequency electric field makes itself a threat to the electric field in far distance and a signal to be tracked at the same time. Based on contract than model theory, a ship axle frequency electric field simulation system was put forward in this article, introducing the basic structure of the system, working principles and its corresponding functions. In the course of simulation, bus PXI and visual virtual instrument are adopted to develop a platform for collecting signals from the corruption electric field and having these signals analyzed and processed through computers. The simulation shows that axle frequency electric field caused by the corruption, is an extremely low frequency electric field which use axle velocity as norm frequency.