ABSTRACT

This chapter discusses the application of adaptive array processing techniques in the Global Positioning System (GPS). In GPS, the interference can be combated in the time, space, or frequency domain, or in a domain of joint variables. Space-time adaptive arrays, which utilize both spatial and temporal degrees of freedom, have been adopted in GPS for narrowband and broadband interference suppression, as well as multipath mitigation. In this chapter, we discuss commonly used array processing techniques for interference suppression and multipath mitigation in GPS. A novel self-coherent GPS antijamming receiver is also presented with computer simulations.