A wireless tracking system consists of a wireless target including a wireless communication system for transmitting a data packet over a communication path, and a locating station for determining a position of the target. Each of the elements is located along a different optical path that extends between an input and an output port. A bias circuit coupled to the adjustable termination resistor and the reference termination resistor causes the same current to flow through the adjustable termination resistor and the reference termination resistor. The second amount of fuel is injected into the at least one combustion chamber during auto-ignition conditions. 2 exponentiated to the power of the rank of the first bit of the part concerned; and computing the product of the results of the first and second modular exponentiations.