PN Sequences By Dr. Ernest Simo 1.0 Definition and Generation A Simple Definition of PN Sequences Pseudo-random Noise Sequences or PN Sequences are known sequences which exhibit the properties or characteristics of random sequences. PN Sequences can be used to logically isolate users on the same physical (Frequency) channel. They can also be used to perform scrambling as well as spreading and despreading functions. If the Code Sequence were deterministic, everybody could access the channel; If the Code Sequence were truly random, then nobody, including the intended receiver, could access the channel; So, PN Sequences appear as random noise to everybody else, except to the transmitter and the intended receiver. CODE: AN INTRODUCTION By Dr. Ernest Simo © 1999 DR. ERNEST SIMO - SPACE2000