Research on technical solutions for digital signal processing to enhance the reception quality of air defense radar systems

Abstract

The paper presents the signal processing algorithm, hardware design solution, and software development of the digital signal processing module for linear frequency modulated signals to improve the signal-to-noise ratio and reduce computational overload in the system. The proposed signal processing algorithm performs direct analog-to-digital conversion of two quadrature channels, downsampling filtering, optimization filtering, and signal correlation compression filtering. The selected functional components feature several advantages such as high gain, high speed, and ready availability in the market. The hardware design and software development were carried out following a survey–simulation–prototype process, ensuring high logical coherence and systematic integration. The final product has been successfully validated on both test benches and radar systems.