Details

Autor(en) / Beteiligte

• Diggelen, Frank
• Parkinson, Bradford W
• Spilker, James J
• Gao, Grace
• Lo, Sherman
• Morton, Y. T. Jade

Titel

High‐Sensitivity GNSS

Ist Teil von

• Position, Navigation, and Timing Technologies in the 21st Century, 2020, p.445-479

Ort / Verlag

Hoboken, NJ, USA: John Wiley & Sons, Inc

Erscheinungsjahr

2020

Quelle

Wiley Online Library All Obooks

Beschreibungen/Notizen

• High sensitivity has applications far beyond smartphones, sometimes literally far beyond: high‐sensitivity global navigation satellite system (GNSS) receivers are employed in GEO satellites to acquire and track the weak signals transmitted from GNSS satellites on the other side of Earth. In this chapter, the authors explain how the receiver takes advantage of the reduced search space to integrate longer in each frequency‐code search cell. They summarize the analysis of sensitivity, and then extend it to show how different signal structures in different GNSSs affect receiver complexity, size, cost, and power consumption. Sensitivity analysis begins with the RF front‐end analysis followed by analysis of the baseband. The RF front‐end analysis quantifies the noise. The authors explain correlation and idealized coherent integration. Finally, they discuss the question: if readers could design a new GNSS signal set, what should the signals look like?