Patent ID: 8018371

Claim:
A proximity detection system, comprising: a communication signal transmitter; a transmitting antenna comprising a first antenna, wherein the transmitting antenna is connected to the communication signal transmitter and is operable to transmit a communication signal from the communication signal transmitter as a communication signal transmission; a receiving antenna comprising at least one of the first antenna and a second antenna; a memory, wherein the memory is operable to store a reference sample sequence of the communication signal transmission; a signal processor, wherein the signal processor is operable to compare the stored reference sample sequence of the communication signal transmission to a received sample sequence received by the receiving antenna, wherein a signal indicating the presence of a target in response to a match between the stored reference sample sequence of the communication signal transmission and the received sample sequence received by the receiving antenna is output by the signal processor, and wherein said communication signal transmitter and said signal processor are interconnected to a first platform.