IMPULSE RADIO RECEIVER AND METHOD FOR FINDING ANGULAR OFFSET OF AN IMPULSE RADIO TRANSMITTER

摘要

A system (900) and method for determining angular offset of an impulse radio transmitter using an impulse radio receiver (903) coupled to two antennae (901, 902). The antennae (901, 902) are separated by some known distance (905), and, in one embodiment, one antennae (902) is coupled to the radio (907) with cable delay (904). Impulse signals from the antennae (901, 902) are measured to determine the time difference of arrival of one such signal received by one antenna (901) compared to that of the other antenna (902). Time differential is measured by autocorrelation of the entire impulse radio scan period, by detecting the leading edges of both incoming signals or various combinations of these methods. Using a tracking receiver, the pulses may be continuously tracked thus providing real time position information.