1. A system, comprising: a computation component configured to: compute a first value from comparison of a first known signal format with an unknown signal, where a modulation scheme of the unknown signal is unknown to the system, where a modulation scheme of the first known signal format is known to the system, and where the unknown signal includes a noise; compute a second value from comparison of a second known signal format with the unknown signal, where a modulation scheme of the second signal format is known to the system; a determination component configured to determine a preferred value from a value set, where the value set comprises the first value and the second value and where the preferred value has a smallest error; a designation component configured to designate a known modulation scheme associated with the preferred value as a modulation scheme for the unknown signal; and a processor configured to execute at least one command in relation to the computation component, the determination component, the designation component, or a combination thereof.