GNSS receiver with a plurality of antennas

摘要

A GNSS receiver comprises at least two antennas for receiving a GNSS signal at different positions. A multiplexer switch is connected to the antennas and controlled by a control signal generator in such a way as to cyclically select the signals produced by the antennas one at a time and to multiplex samples of the signals produced by the antennas in a time-multiplexed signal. A front end is connected to the switch for receiving the time-multiplexed signal. The switch switches from one signal produced by the antennas to the next at a switching frequency of at least m · 2 MHz, where m is the number of antennas. The front end converts the time-multiplexed signal into a digital stream with interleaved samples from the different antennas. A DSP connected to the front end de-interleaves the digital stream and processes the samples from the different antennas as antenna-specific streams.