Are there Doppler speeds of each LocataLite?
Thursday, 1 November 2012
Unlike GPS satellites, LocataLites are designed to be stationary when deployed, so they do not present a Doppler shift (except for any shift generated by user movement, of course). This greatly simplifies the search strategy required to acquire a Locata signal because the frequency shift is inherently much smaller than what is expected from satellite-based signals. Hence, when a Locata receiver acquires just one LocataLite signal, it can almost instantly acquire all the others.