Signals and Array Signal Processing for Global Navigation Satellite Systems

Lecturer: Felix Antreich

Target Audience: Master EI and MSCE

Language: English

Next Exam: tbd (no responsibility is taken for the correctness of this information)


Lectures/Tutorials in Summer Semester 2018



GNSS receivers are used in many applications, for example navigation of automobiles, aircraft or ships. In this lecture GNSS signals and signal processing are addressed. An overview on signals and digital modulations of different GNSS is provided and the general problem of signal design for ranging applications is discussed. On the other hand array signal processing methods and concepts for synchronization parameter estimation (time-delay, carrier phase, and Doppler frequency) as well as multipath and interference mitigation for GNSS are introduced. Basic GNSS signal processing using delay locked loops (DLL) and phase locked loops (PLL) are recapitulated and extended to multi-antenna systems using beamforming and multi-dimensional parameter estimation. Also the problem of attitude determination of a multi-antenna platforms based on GNSS signals is studied.

The lecture includes the following topics:
- Digital modulation
- Signal interplexing/mapping schemes
- Signal design for ranging
- Satellite payload characteristics
- Multipath propagation and interference
- Signal processing concepts for GNSS
- Signal acquisition and detection
- DLL discriminator types and their performance
- Multi-antenna receiver architectures and systems
- Robust beamforming algorithms
- Direction-of-arrival (DOA) estimation
- Attitude determination of multi-antenna platforms
- Per-whitening and orthogonal projections
- High resolution synchronization parameter estimation
- Space-time adaptive processing for GNSS