A new fast symbol timing recovery algorithm for OFDM systems

The orthogonal frequency division multiplexing (OFDM) technique has been adopted for the European digital terrestrial broadcasting standard, which is called the digital video broadcasting for terrestrial (DVB-T). In this paper, we propose a new symbol timing recovery algorithm for the (OFDM) system to achieve a fast start-up using the scattered pilots under the frequency offset, the common phase error, and severe noise. With the proposed algorithm, we can detect up to /spl plusmn/35 sample offsets and can recover the sampling timing phase even in the carrier frequency offset of up to /spl plusmn/0.35 OFDM subcarrier space. So, we can much reduce the start-up time by simultaneously operating both the carrier and symbol timing recovery loops.