9Song M K,Sakong S C,Tchah K H. Realization of power line modem using a direct sequence spread spectrum" technique. IEEE, Transaction on Consumer Electronics, 1993,39 (2).
10Ferreira H, Grove H, Hooijen 0, etal. Power line communicat ions. Webster J. Encyco lpadia of Elctrical and Electronics Engineering. NewYork : Wiley, 1000.
