What is symbol timing offset?
Symbol timing offset (STO) can result in intersymbol interference (ISI) and a rotated phase which value is proportional to the subcarrier index at the FFT output in an OFDM receiver.
What is symbol timing estimation?
3. Symbol timing estimation. The purpose of symbol synchronization is to determine the correct position of the FFT window, which is the original position of OFDM symbol, and the FFT window can contain the current OFDM symbols of N, so that it can get the correct demodulation.