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The highest absolute cross-correlation in this set of codes is 2 (n+2)/2 + 1 for even n and 2 (n+1)/2 + 1 for odd n. The exclusive or of two different Gold codes from the same set is another Gold code in some phase. Within a set of Gold codes about half of the codes are balanced – the number of ones and zeros differs by only one. [5]
The Gold Code is the launch code for nuclear weapons provided to the President of the United States in their role as commander-in-chief of the armed forces. [1] In conjunction with the nuclear football , the Gold Codes allow the president to authorize a nuclear attack. [ 2 ]
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.
The gold number is the minimum weight (in milligrams) of a protective colloid/lyophilic colloid required to prevent the coagulation of 10 ml of a standard hydro gold sol when 1 ml of a 10% sodium chloride solution is added to it. [1] It was first used by Richard Adolf Zsigmondy in 1901.
Gold codes are an example of a spreading sequence suitable for this purpose, as there is low correlation between the codes. If all of the users are received with the same power level, then the variance (e.g., the noise power) of the MAI increases in direct proportion to the number of users.
A number of countries have a finer-grained system with more recycling codes. ... 90/91 code images need review: ... Gold Mixed/Gold Backed Glass
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The C/A PRN codes are Gold codes with a period of 1023 chips transmitted at 1.023 ... is the Weil index for PRN number and code designated in the IS. [39] is the ...