초록 ▼

A position determining apparatus comprising a transmitter and a receiver connected to the transmitter through a cable with a predetermined length. The transmitter has a transmission antenna which emits an electromagnetic wave pulse, generated by a short pulse signal. The receiver includes a pluralit

A position determining apparatus comprising a transmitter and a receiver connected to the transmitter through a cable with a predetermined length. The transmitter has a transmission antenna which emits an electromagnetic wave pulse, generated by a short pulse signal. The receiver includes a plurality of receiving antennas for receiving the electromagnetic wave pulse, the receiving antennas being positioned along a circular path. A distance detector calculates the relative positions of the transmitter and the receiver based on the propagation time of the electromagnetic wave pulse received by each of the receiving antennas. The propagation time is calculated with reference to the signal supplied through the cable. The transmitter has a pulse signal generator for generating said short pulse signal and a delay circuit for delaying the short pulse signal supplied to the transmission antenna by the time required for the short pulse signal to propagate through the cable. If the propagation times of the electromagnetic wave pulses received by the respective receiving antennas are equal, then the receiver is orthogonal to the line of sight between the transmitter and the center of receiver.

대표청구항 ▼

[ What is claimed is:] [1.] A position determining apparatus comprising:a transmitter having a transmission antenna for transmitting an electromagnetic wave pulse generated by a short pulse signal;a receiver having a plurality of receiving antennas for receiving the electromagnetic wave pulse, the p

[ What is claimed is:] [1.] A position determining apparatus comprising:a transmitter having a transmission antenna for transmitting an electromagnetic wave pulse generated by a short pulse signal;a receiver having a plurality of receiving antennas for receiving the electromagnetic wave pulse, the plurality of receiving antennas being positioned along a circular path;a cable for carrying the short pulse signal from said transmitter to said receiver; anda distance detector for determining the relative positions of the transmitter and the receiver based on the delay time between the short pulse signal received over said cable and the electromagnetic wave pulse received by each of the receiving antennas,wherein the transmitter and the receiver are separated by a solid body, and the transmission antenna is located on a line orthogonal to a plane containing the plurality of receiving antennas, andwherein the transmitter includes:a pulse generator for generating the short pulse signal; anda delay circuit for delaying the short pulse signal by a time equal to the time required for the short pulse signal to propagate through said cable, the short pulse signal delayed by said delay circuit being supplied to the transmission antenna.