An impulse radio system estimates a separation distance between an impulse radio transmitter and an impulse radio receiver. The system includes an impulse transmitter that transmits an impulse signal having an ultra-wideband frequency characteristic. An impulse receiver spaced from the transmitter receives...http://www.google.es/patents/US6700538?utm_source=gb-gplus-sharePatente US6700538 - System and method for estimating separation distance between impulse radios using impulse signal amplitude
System and method for estimating separation distance between impulse radios ...
