Hi all,
     there always said long PN sequence(period 2^n-1) got a small
cross-correlation  property as -1/(2^n-1). But in practice, one symbol
could only be spread by a small amount(128 etc) but not 2^n-1, so how can
we guarantee the cross correlation property -1/(2^n-1)? Thanks.


B. R.
Laron