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Guys,what is Pseudo random Noise (PRN)? sagitraz 07-May-2008 03:55:27 AMComments Pseudorandom noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Posted by waqqas1 Pseudorandom noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudorandom noise consists of a deterministic sequence of pulses that will repeat itself after its period. Each pulse in this sequence is known as a chip and the inverse of its period as chip rate. In spread-spectrum systems, modulated carrier transmissions appear as noise to any receiver that is: 1. not locked on the transmitter frequencies; or 2. incapable of correlating a locally generated pseudorandom sequence with the received signal. A pseudonoise code (PN 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 Posted by avloginov |
Posted: 13-May-2008 09:10:20 AM By: avloginov Pseudorandom noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudorandom noise consists of a deterministic sequence of pulses that will repeat itself after its period. Each pulse in this sequence is known as a chip and the inverse of its period as chip rate. In spread-spectrum systems, modulated carrier transmissions appear as noise to any receiver that is: 1. not locked on the transmitter frequencies; or 2. incapable of correlating a locally generated pseudorandom sequence with the received signal. A pseudonoise code (PN 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 | |
Posted: 31-December-2008 12:20:28 AM By: waqqas1 Pseudorandom noise (PRN) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. |