复杂环境磁噪声背景下反潜机运动态势对OBF信号检测方法的影响

Effects of Motion Situation of Antisubmarine Aircraft on OBF Signal Detection Method in Complex Magnetic Noise Environment

航空磁探仪是对水下磁目标进行探测的一种有效手段,反潜机使用磁探仪进行低空飞行探测过程中海浪磁噪声是影响探测识别的重要噪声源。目前,航空磁探仪设备在对目标搜索过程中很少考虑海浪磁噪声对目标信号识别的干扰,基于此,该文主要研究运动目标OBF方法对海浪磁噪声叠加高斯噪声等复杂背景干扰下,反潜机在不同飞行速度、飞行高度、飞行航向等运动态势影响下,对OBF检测性能影响,并进行仿真分析。由仿真结果可知,通过控制反潜机运动态势,可有效降低海浪磁噪声对航空磁探仪的干扰,有效提高反潜机航空磁探仪信号检测能力。

The aeromagnetic detector is an effective means to detecting underwater magnetic targets.The magnetic noise of sea waves is an important noise source that affects the detection and identification during the low altitude flight detection of the antisubmarine aircraft using the magnetic detector.At present,the interference of ocean wave magnetic noise on target signal recognition is rarely considered in the process of target search by aeromagnetic detector equipment.Based on this,this paper mainly studies the influence of anti submarine aircraft on OBF detection performance under the complex background interference of moving target OBF method on ocean wave magnetic noise plus Gaussian noise,and under the influence of different speed,flight altitude,flight heading and other movement situations,and carries out simulation analysis.From the simulation results,it can be seen that by controlling the movement situation of the antisubmarine aircraft,the interference of the sea wave magnetic noise to the aeromagnetic detector can be effectively reduced,and the signal detection capability of the antisubmarine aircraft aeromagnetic detector can be effectively improved.