September 26, 2007
GLONASS has “preliminary approval” to transmit CDMA GLONASS signals at L1, L5
GLONASS has gotten “preliminary approval” to add code division multiple access (CDMA) signals to future satellites.
Since its initiation in the early 1980s, the Russian GNSS system has employed frequency division multiple access (FDMA) techniques in which the same code is used for the signals broadcast by the system, with individual spacecraft being distinguished from one another by a specific frequency allocation. Russia would almost certainly continue broadcasting FDMA signals on existing frequencies.
By Glen Gibbons
