The approach can be taken further by also measuring the strength of each reply pulse and using that as a discriminate as well.
2.
The aircraft interrogator locks on to the DME ground station once it recognizes a particular reply pulse sequence has the same spacing as the original interrogation sequence.
3.
By controlling the strength of the reply pulse, the program mimics a neuron conduction channel, and the neuron reacts as if it were communicating with another neuron, not a computer.
4.
Lincoln Laboratory exploited the availability of a separate bearing measurement on each reply pulse to overcome some of the problems of garble whereby two replies overlap making associating the pulses with the two replies.
5.
The DME receiver in the aircraft searches for reply pulse-pairs ( X-mode = 12 microsecond spacing ) with the correct interval and reply pattern to its original interrogation pattern . ( Pulse-pairs that are not coincident with the individual aircraft's interrogation pattern e . g . not synchronous, are referred to as filler pulse-pairs, or squitter.
मोबाइल