FOR 32-QAM DEMODULATION
H. Hwang, Kuor-Hsin Chang, K. B. Park, H. S. Lee · 1997
We introduce a robust blind equalization coupled with carrier recovery for 32-QAM demodulation with high symbol rate. The carrier recovery, which we call a rotational decision-directed mrrier recouery(RDDCR), is an extension of the RDDAFC[l] for the QPSK demodulation to the 32-QAM. The rotatid decision-directed blind e~ualization(RDDEQ) is based on the SGAt21 with the rotated decision boundary. Test results show that the proposed algorithm is robust against multi-paths, white gaussian noise and carrier frequency offsets