How is Locata like GPS?

How is Locata similar to GPS?

• Both GPS and Locata are one-way ranging systems with the following features:
  • A small number of transmitters, providing good geometry, can serve an
    unlimited number of receivers;
  • Location of the receiver is known only at the receiver; and
  • The receiver’s position can then be fed into a host of existing
    applications such as machine control, asset management and military systems.
• Similar signal structure and the same measurements:
  • Locata and GPS are both direct sequence spread spectrum signals;
  • Receivers for both systems give pseudorange and carrier-phase measurements; and
  • Both receivers can use the pseudorange or carrier phase for positioning:
    • Pseudorange positioning for both is in the order of a meter
    • Carrier phase positioning for both is in the order of a centimetre
• From an end-user perspective, Locata is “just another constellation”.

• Dilution of Precision (DOP) matters, as with GPS.