On 6/9/11 1:00 PM, Mark Spencer wrote:
Perhaps in the longer term (ie. next the several decades) moving away from the current wide band spread spectrum scheme to a higher power narrow band scheme might make more sense for GPS. A previous poster mentioned the use of nuclear powered satellites to achieve higher transmit powers, given the benefits of GPS that option should not be entirely discoutned in my oppinion.
I suspect that there are no new nuclear powered satellites being created, at least by the US.
There was a fair amount of analysis to choose the formats and powers used by GPS (e.g. Transit was narrow band). GPS World had a great series a couple months ago about the history of GPS and how it got where it is.
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