A new fully-digital HF radar system for oceanographical remote sensing

Abstract

This paper presents a new fully-digital high-frequency (HF) backscatter radar system for oceanographical remote sensing. The fully-digital receiver is designed that employs directly radio freqency (RF) sampling, digital down-conversion, and digital pulse compression techniques. The difference between this system and ordinary analogue system is illustrated. Results of closed-loop test and field experiment conducted on the coast of the Eastern China Sea are given to prove good performance of the system.