Carrier Arraying with Coupled Phase-Locked Loops for Tracking Improvement

This paper considers a system that couples several phaselocked loops (PLL´s) to improve carrier tracking performance. The system coherently combines the received carrier signals at geographically separated ground antennas to increase the total effective aperture. It automatically aligns the received carrier´s phases to enhance received carrier signal-to-noise ratio. The tracking performance of this system is being assessed in terms of rms phase jitter.