Barker code vs gold code

1. What is Barker code used for?
2. What is the advantage of gold code over PN sequence code?
3. What is gold code in GPS?
4. How many Barker codes are there?

What is Barker code used for?

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.

What is the advantage of gold code over PN sequence code?

A gold code is a set of random sequences, often called pseudo-noise (PN) sequences, that are statistically uncorrelated. Gold codes are used in CDMA as chipping sequences that allow several callers to use the same frequency, resulting in less interference and better utilization of the available bandwidth.

What is gold code in GPS?

A Gold code, also known as Gold sequence, is a type of binary sequence, used in telecommunication (CDMA) and satellite navigation (GPS). Gold codes are named after Robert Gold.

How many Barker codes are there?

Barker codes are named after their inventor Ronald Hugh Barker, who examined 6 000 different polynomials in a study published in 1953. This resulted in the list of the 9 known Barker codes. (Simple negations or inversions of the pulse sequence would also be possible, but are faded out here).