Patent attributes
This application relates to an apparatus for generating a global navigation satellite system (GNSS) signal. In one aspect, the apparatus includes a receiver configured to receive and store GNSS navigation information, receive a real-time satellite signal, and calculate a frequency shift value of the real-time satellite signal with respect to a default carrier frequency based on the real-time satellite signal. The apparatus may also include at least one signal generator configured to receive the GNSS navigation information from the receiver, and generate pseudo GNSS signal information corresponding to a current time and a current location based on the GNSS navigation information and the frequency shift value. The apparatus may further include a transmitter configured to generate a pseudo GNSS signal based on the pseudo GNSS signal information, and amplify and output the pseudo GNSS signal, wherein the GNSS navigation information indicates an estimated location of a GNSS satellite over time.
