Howtosignalprocessing
A big advantage of Barker Codes over a generic marker is strong correlation when the codes are aligned and very low correlation for all other shifts, even by one sample. This offers increased resistance to bit errors that would otherwise cause a false detection.
- What is the purpose of Barker code?
- Is Barker code used for spread spectrum?
- Which spread spectrum is used by the famous Barker sequence?
What is the purpose of Barker code?
Barker codes are used for pulse compression of radar signals. There are Barker codes of lengths 2, 3, 4, 5, 7, 11, and 13, and it is conjectured that no longer Barker codes exist.
Is Barker code used for spread spectrum?
Here, 11-bit Barker code is used to spread the spectrum; however, other spreading codes having any bit-size may also be used instead of 11-bit Barker code.
Which spread spectrum is used by the famous Barker sequence?
Barker codes of length N equal to 11 and 13 are used in direct-sequence spread spectrum and pulse compression radar systems because of their low autocorrelation properties (The sidelobe level of amplitude of the Barker codes is 1/N that of the peak signal).
