![]() But, because engineers live to fix whatever they get their hands on, GNSS designers worldwide have been working tirelessly to “fix” GPS with more complex and longer codes and higher data rates. ![]() The theme that will emerge is that GPS L1 C/A code was designed almost perfectly for consumer GNSS. Then we’ll do a brief review of high-sensitivity issues before looking at the cost/benefits of new codes and higher data rates. Next, I want to explore the cost constraints of consumer GNSS. That architecture has evolved rapidly to take full advantage of the characteristics of the GPS C/A code. First, we’ll look at the evolution of consumer GPS architecture to date - where acquisition speed and sensitivity have been the main drivers of receiver architecture. ![]() In this article, we will take a look at the various GNSS signals from the perspective of their cost-benefit tradeoffs. ![]()
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