PN Sequences By Dr. Ernest Simo 1.0 Definition and Generation The Long PN Code The Long PN Code is generated by a 42-stage Linear Shift Register. Therefore, the maximum length of the Long PN Code is: L=2N-1 = 242-1=4.4 x 1012=4.4 trillion chips The Long PN Code also runs at a speed of 1,228,800 chips per second. This yields a repetition cycle of 4.4 x 1012/1,228,800=41-42 days. CODE: AN INTRODUCTION By Dr. Ernest Simo © 1999 DR. ERNEST SIMO - SPACE2000