Patent ID: 9541626
Date: 2017-01-10
CPC Classifications: G01S

Claim:
1. An apparatus for determining position that is resistant to interference and capable of use within a shielded environment comprising: a UWB receiver; a GPS receiver; a bent-path GPS receiver; a GPS re-radiation antennae position outside the shielded environment, said antennae configured to remove biases introduced by different ionospheric conditions, magnetic fields when using a single satellite signal; an intelligent control operatively connected to the UWB receiver, the GPS receiver, and the bent-path GPS receiver; the bent-path receiver adapted to receive a heterodyned GPS signal comprising a GPS radio frequency wave and a wave of a different frequency, and to deheterodyne the heterodyned GPS signal to extract the GPS radio frequency wave; the intelligent control adapted to determine a globally referenced position at least partially based on integrating and correlating ultra wideband data received from: the UWB receiver, GPS data received from the GPS receiver, and/or GPS data received from the bent-path GPS receiver; wherein the GPS re-radiation antennae is capable of transmitting GPS signals onto multiple wireless radio frequency carriers simultaneously, or in a center channel frequency hopping mode in order to reduce the possibility of having the GPS heterodyned signals jammed or spoofed.