GNSS Measurement Engine System Design: A Communication Engineering Perspective

Satellites based positioning and navigation are widely believed to be the cornerstone for emerging autonomous driving and IoT (internet of things) services. However, traditional GNSS receiver architectures can hardly meet many mission critical demands, including better than -170 dBm sensitivity, centimeter level accuracy, 100 Hz or higher update frequency, less than 1 watt power consumption, less than 1 second cold start TTFF, etc, particularly considering GNSS signals are operating deeply under thermal and the ADC resolution of most GNSS RF front ends is only 2 bits or so. The question now becomes, how can we innovate GNSS receiver design for the future?

A discussion on the three key parameters, link budget (or sensitivity), error budget (or accuracy budget) and power budget (or energy budget), for GNSS measurement engine system design from a mobile communication engineering perspective. Here is the link.

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