Direct RF Sampling GNSS Receiver Design and Jitter Analysis

New GNSS Signals: Receiver Design Challenges

In the coming years, many more satellite positioning signals will become available to civilian users. In addition to the L2 and L5 signals of GPS is the array of different signals that will be broadcast by Galileo. A Galileo receiver will be required to be fully compatible with GPS, so the receiver will need to be sophisticated enough to receive and process all of these signals simultaneously. ...

Spaceborne Receiver Design for Scatterometric GNSS Reflectometry

Theoretical Analysis of Overlay GNSS Receiver Effects

Having given a short overview of GNSS signals and state-of-the-art multi-band front-end architectures, this paper presents a novel contribution to efficient multi-band GNSS reception. A general overlay based front-end architecture is introduced that enables the joint reception of two signals broadcast in separate frequency bands, sharing just one common baseband stage. The consequences of this ...

Architecture and design of a reconfigurable RF sampling receiver for multistandard applications

The fast development of wireless communication systems requires more flexible and cost effective radio architectures. A long term goal is the software defined radio, where communication standards are chosen by reconfiguration of hardware. Direct analog to digital conversion of the radio frequency (RF) signal is still unrealistic at present time, due to the high requirements imposed on the analo...

Jitter Analysis of QPSK and BOC(n,n) GNSS Signals

This paper analyzes the effects of jitter on the GPS and Galileo navigation signals. Jitter effects have usually been modelled as additive noise, based on a sinusoidal input signal, and limits the achievable Signal-to-Noise Ratio (SNR). Analysis shows that psec-level jitter specifications are required in order to keep jitter noise well below the thermal noise for software radio satellite naviga...