Research on Dual Band Covariant Correlation Fusion Radar Fuze Detection Method

With the increasing complexity of the electromagnetic environment and the continuous innovation of modern jammer technology, radar fuze is facing more and more complex situation in combat. Therefore, the multimode composite detection radar fuze has been gradually developed. As a typical mode of composite detection, dual-band detection improves the radar fuze performance of target detection and anti-jamming capability by fusing the information obtained from two bands. This paper proposes a dual band covariance correlation fusion radar fuze detection method to improve the anti-jamming capability of radar fuze and detection capability at low signal-to-noise ratio. The transmitted signal is designed as a FMCW waveform with dual band collaboratively and randomly hopping parameters, and the beat signal with randomly hopping parameters is adaptively fused by the dual band covariant correlation fusion algorithm to achieve accurate ranging at low signal-to-noise ratio. The simulation results demonstrate that the dual band covariant correlation fusion algorithm has satisfying detection performance, can improve the signal-to-noise ratio and has excellent anti-jamming performance.