Signals that can be easily time-frequency synchronized from their ambiguity function

Delay and Doppler determination of a time-delayed and frequency-shifted signal is one of fundamental problems in communication. The two-parameter estimation is reduced to two one-parameter estimation problems in time- and frequency-domain signals. Motivated by Gabor's communication theory, we proceed further parallelism between time- and frequency-domain signals and solve the two problems individually and cooperatively. Simulation results without prescribed information are reported.