Pseudooctonary near maximum likelihood detector

Paper introduces two new near maximum likelihood detectors: pseudooctonary and modified pseudooctonary detectors. These two detectors are tested against pseudoquaternary near maximum likelihood detector using data transmission at 9.6 kb/s over telephone channel. Simulation results show that the performance of pseudooctonary detector is better than performance of modified pseudooctonary detector and the latter is better than pseudoquaternary detector.