Howtosignalprocessing
- What will be the correlation of two codes if the two codes are identical?
- What is autocorrelation in PN sequence?
- What is the shape of autocorrelation function of PN sequence?
- What is PN sequence spreading code?
What will be the correlation of two codes if the two codes are identical?
In general the correlation function has these properties: It equals 1 if the two codes are identical. It equals 0 of the two codes have nothing in common.
What is autocorrelation in PN sequence?
A PN code is a sequence of binary numbers with certain autocorrelation properties. These sequences are typically periodic. A maximum-length sequence is a periodic PN sequence with the longest possible period for a given length M of the shift register. The period of such a sequence is N=2M−1.
What is the shape of autocorrelation function of PN sequence?
The auto-correlation function is mathematical tool for detecting repeating patterns in a signal, such as periodic patterns which are obscured by noise. Its used to assess the random nature of sequences, and the autocorrelation of a perfectly pseudo random noise sequence has delta function form.
What is PN sequence spreading code?
A pseudo-noise code (PN code) or pseudo-random-noise code (PRN code) is one that has a spectrum similar to a random sequence of bits but is deterministically generated. The most commonly used sequences in direct-sequence spread spectrum systems are maximal length sequences, Gold codes, Kasami codes, and Barker codes.
