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.
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Tian et al. (2013) studied this question.
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