Reis, AntónioRocha, José Ferreira daGameiro, AtilioCarvalho, José Pacheco de2019-12-032019-12-032019http://hdl.handle.net/10400.6/7653The scrambler and descrambler are important blocks in digital transmission systems. The scrambler function is to maintain an uniform spectrum independently of the input on or off. The other function is to improve the system security. The descrambler makes the inverse operation, recovering the original signal. The objective is to observe the pseudo-random sequence generators and adapt them to the scrambler and descrambler.engBlock codesDigital systemsTransmission linesconference object