An Iteration-Based Variable Step-Size Algorithm for Joint Explicit Adaptation of Time Delay

By using an adaptive technique similar to the joint explicit time delay estimator, a novel variable step-size algorithm is derived. This algorithm employs the iteration time to control the step-size update and its respective performance analysis is also given. It is also proved that the proposed algorithm efficiently improves the convergence speed and the delay variance with only increasing a little computational cost compared to the conventional adaptive time delay estimation algorithm.