GPS signal reception apparatus and method

摘要

A Global Positioning System (GPS) signal reception apparatus including a GPS antenna unit, a GPS signal selection unit, and a jamming signal detection unit is provided. The GPS antenna unit includes a first-type antenna and a plurality of second-type antennas which have directivities different from each other. The GPS signal selection unit selects any one of the first-type antenna and the plurality of second-type antennas as a selected antenna. The jamming signal detection unit detects a jamming signal present in a GPS signal by analyzing the GPS signal which is received via the selected antenna.

主权项

1. A Global Positioning System (GPS) signal reception apparatus, comprising:
a GPS antenna unit having a first-type antenna and a plurality of second-type antennas, the plurality of second-type antennas having directivities different from each other; a GPS signal selection unit configured to select any one of the first-type antenna and the plurality of second-type antennas as a selected antenna; and a jamming signal detection unit configured to detect a jamming signal present in a GPS signal by analyzing the GPS signal which is received via the selected antenna wherein, when a jamming signal is detected from the GPS signal, the GAS signal selection unit sequentially changes the selected antenna among the plurality of second-type antennas in response to a control signal from the jamming signal detection unit; and wherein the jamming signal detection unit measures a strength of the jamming signal present in the GPS signal received via the selected antenna among the plurality of second-type antennas, and then performs control such that a second-type antenna in which the strength of the jamming signal is weakest is finally connected for receiving.