An anti-counterfeit authentication system provides authentication services over available communication networks. The DAS includes a host unit a plurality of remote units communicatively coupled to the host unit. At least one of the two surfaces is aspherical. The error suppression process improves tracking by postponing the final decision on how to track the object of the implicated trajectory until more information is available. The second trenches are filled with a second oxide layer. The controller is configured to access a first value associated with a strength of the data signal from the receiver, access a second value associated with the first value from the first table, generate a third value using the second value, and store the third value in the second memory.