Digital GNSS PLL Design Conditioned on Thermal and Oscillator Phase Noise

作者：Curran James T^*; Lachapelle Gerard; Murphy Colin C

来源：IEEE Transactions on Aerospace and Electronic Systems, 2012, 48(1): 180-196.

DOI：10.1109/TAES.2012.6129629

Both thermal and oscillator phase noise pose significant difficulties for phase-lock loops (PLLs) in consumer grade GNSS receivers employing low quality oscillators. Unfortunately, these phenomena impose conflicting constraints on the PLL design and so a trade-off between noise rejection and tracking error must be made. Design rules are developed for optimal, Wiener filter based PLLs conditioned on the influence of the oscillator and thermal noise on consumer-grade receivers. The performance of these PLLs is examined through both simulation and the use of actual GPS signals.

• 出版日期2012-1