Power reserve of Walsh’s and Haar’s orthogonal functions

Walsh’s and Haar’s consequences are compared from the point of view of power reserve (keeping a secret the fact of information transfer). It is necessary to use a signal-carrier with the greatest value of its base to increase power reserve of the channel. It is established that Haar’s consequence has a greater frequency band than Walsh’s consequence. It is obvious that the reserve of the modulated signal of Haar’s consequence will be more as the energy of a signal is distributed in a greater frequency band and, therefore, is less appreciable on a background of noises. It means that to reveal the fact of information transfer is much more difficult.