Abstract: Devices and methods for detecting a target using a logic circuit for increasing the accuracy and speed at which targets can be detected in security and surveillance applications. A commercially available field programmable gate array may be used as the logic device. In one embodiment, the Multigigabit Transfer port (MGT) of the field programmable gate array is locked to an external clock. The coupling of the MGT port to an external clock increases the rate at which the received signal is sampled, without having to use the device in the oversampling mode. By doing so, the field programmable gate array is able to sample at least eight times faster than the actual transfer rate, which increases the speed and accuracy by which a target can be detected.