LRS Flashcards
1
Q
What are the formulas for Non maximal length and maximal length?
A
Maximal length-(2n-1)
Non maximal length-(<2n-1)
n=numbers of cells in the shift register
2
Q
Describe and expand LRS
A
Linear Recursive Sequence
A predictable, repetitive sequence. For example 1212121212
3
Q
What components make up an SRG
A
Shift Register, XOR Gate, Clock, Bi stable cells
4
Q
How is an LRS generated?
A
By an SRG (shift register generator)
5
Q
Name 3 LRS uses?
A
Over the horizon radar, frequency hopping, ELINT, encryption, synchronisation, BIT Error test rate
6
Q
What influences the length of an LRS
A
The number of Bi stable cells and location of tap points
7
Q
What is the initial start condition known as?
A
The fill