Building a Wide-Band Multi-constellation Receiver.

The article focuses on the creation of a wide-band multi-constellation receiver global navigation satellite systems (GNSS). It discusses the functions of the three parts of GNSS receiver such as the radio frequency (RF) front-end, signal demodulation, and navigation information generation. It highlights the challenges upon testing and implementation of the GNSS receiver including onboard oscillator testing, custom wide-band firmware development, and wide-band receiver performance analysis.