Scramblers use a secret spreading sequence or secret hop sequence, or some other information that must be kept secret from a potential jammer and/or listener. This mostly assumes sender and receiver to have a shared secret.
Scramblers use a secret spreading sequence or secret hop sequence, or some other information that must be kept secret from a potential jammer and/or listener. This mostly assumes sender and receiver to have a shared secret (or a scrambling/descrambling device).
Scrambling system are also used to achieving jam resistance. At the time of writing this, there is only one scrambling system known to be able to achieving jam resistance with no shared secret: BBC coding.
