Bringing the n bit through the input of the DAC, voltage with uniform PDF (
pseudorandom noise - dither) is created at the output.
The GNSS carrier signal transmitted by satellites propagates in the form of electromagnetic wave with binary navigation data and
pseudorandom noise (PRN) code modulated on it.
There are various types of spreading sequence that are available, for example,
pseudorandom noise (PN) sequences and chaotic sequences.
The QVNS generates an accurate synthetic
pseudorandom noise signal with mean-square voltage <[V.sup.2.sub.Q]> = [[absolute value of ([v.sub.JJ])].sup.2]/[K.sup.2.sub.J], where JJ indicates the Josephson junction, [absolute value of ([v.sub.JJ])] is a noise power spectral density that is calculable from QVNS implementation details, and [K.sub.J] is the conventional value for the Josephson constant.
A direct-sequence spread spectrum (DSSS) (Table 1) with a digital spreading function representing
pseudorandom noise (PN) chip sequences is employed [5].
Figure 1 shows a configuration of 3 x 3 two-way ranging technique; the navigation signal is modulated by
pseudorandom noise (PN) codes.
There are other auxiliary circuits such as a
pseudorandom noise (PN) generator and a frequency measurement function.
The time required for the signal to travel from the satellite to the receiver is determined by using a
pseudorandom noise (PRN) signal.
The oscillator uses a
pseudorandom noise (PRM) technique to spread its energy over a wide frequency band, thereby decreasing peak EMI.
By modulating the data signal with a
pseudorandom noise pattern that changes continually according to a defined sequence, each bit of data (or, more correctly, each `symbol') is effectively transmitted at several different frequencies at once.
Chapter 6 discusses the mathematical background of the
pseudorandom noise (PN) sequence generators used in IS-95.
Pilot pollution, island cells and rogue
pseudorandom noise (PN) are just a few of the problems with which network specialists must deal.