Analog Generation of Link-4A Datalink Signals Based on USRP

To enhance the analysis and understanding of data link signals, this paper focuses on simulating the Link-4A data link signals to obtain more intuitive and accurate information. Using a high-speed, efficient software-defined radio (SDR) platform that combines GNU Radio (open-source software defined radios) and Universal Software Radio Peripheral (USRP), we realize the construction, simulation, demonstration, and performance analysis of modules. The modulated signals are transmitted and received in real wireless channels.