Contents
How gold sequences are generated?
A set of Gold codes can be generated with the following steps. Pick two maximum length sequences of the same length 2n − 1 such that their absolute cross-correlation is less than or equal to 2, where n is the size of the linear feedback shift register used to generate the maximum length sequence (Gold ’67).
What is code gold?
CODE GOLD. Definition. MENTAL HEALTH/BEHAVIORAL RESPONSE.
What does CODE RED mean at the hospital?
fire
Hospitals often use code names to alert their staff to an emergency or other event. Code blue indicates a medical emergency such as cardiac or respiratory arrest. Code red indicates fire or smoke in the hospital. Code black typically means there is a bomb threat to the facility.
What is the normalized cross correlation of two m sequences?
To demonstrate cross-correlation properties of two different m-sequences, consider two different primitive polynomials and that could generate two different m-sequences of length . The normalized cross-correlation of the aforementioned m-sequences, shown in Figure 3, is given by the Matlab script given in the book (click here).
When to use gold or Kasami sequence sets?
As a consequence, when several sequences with good cross-correlation properties are needed, one needs to use Gold sequence sets or Kasami sequence sets which have good cross-correlation properties and good (though not excellent) autocorrelation properties.
What happens when the length of the M sequence is increased?
If the length of the m-sequence is increased, the out-of-peak correlation reduces further and thereby the peaks become more distinct. This property makes the m-sequences suitable for synchronization and in the detection of information in single-user Direct Sequence Spread Spectrum systems.
How is autocorrelation of M-sequence related to random sequence?
We observe that that autocorrelation of m-sequence carries some similarities with that of a random sequence. If the length of the m-sequence is increased, the out-of-peak correlation reduces further and thereby the peaks become more distinct.