3 ms·
It's called spread-spectrum. The two types are frequency hopping and direct-sequence. GPS uses direct sequence. http://en.wikipedia.org/wiki/Spread_spectrum
by Nrsolis 13y ago
It's called spread-spectrum. The two types are frequency hopping and direct-sequence. GPS uses direct sequence.
http://en.wikipedia.org/wiki/Spread_spectrum http://en.wikipedia.org/wiki/Spread_spectrum