一种GPS抗干扰及干扰DOA估计工程集成方法

An implementation method of anti-jam and jam DOA in GPS

摘要:

卫星导航干扰对消技术和干扰测向技术是卫星导航干扰对抗的两个典型方向，并逐渐成为当前卫星导航抗干扰装备的标配功能。如何实现干扰对消和干扰测向的高效集成成为制约工程实现的主要瓶颈之一。提出一种 GPS 抗干扰及 DOA 估计的工程集成方法，通过优化噪声子空间估计工程实现，实现了高性能抗干扰和高精度干扰测向的高效集成，与抗干扰模块和干扰测向模块相比，集成模块极大降低了工程实现资源。测试结果表明该方法可以有效对抗干信比 60dB 的干扰，并提供 2 度的测向精度。

Abstract:

Interference cancellation technology and interference direction finding technology are two typical directions of satellite navigation interference countermeasure, and gradually become the standard function of current satellite navigation equipment. How to realize the efficient integration of interference cancellation and interference direction finding becomes one of the main bottlenecks of engineering application. In this paper, an engineering integration method of GPS anti-jamming and DOA estimation is proposed. By optimizing the noise subspace estimation, the method realizes the efficient integration of high-performance anti-jamming and high-precision interference direction finding. Compared with the anti-jamming module and interference direction finding module, the integration module greatly reduces the engineering resources. The test results show that the method can effectively resist the interference of interference signal ratio 60 dB and provide 2-degree direction finding accuracy.