Spread spectrum receiver using a pseudo-random noise code for ra

Details Spread spectrum receiver using a pseudo-random noise code for ra Spread spectrum receiver using a pseudo-random noise code for ra

1995-08-09

1999-09-14

Pham, Chi H.

Pulse or digital communications

Repeaters

Testing

375326, 375371, H04B 1506, H04K 100, H04L 2730

Patent

active

059533676

ABSTRACT:
A receiver of a radio frequency signal having a pseudo-random noise (PRN) code, and techniques of processing such a signal that are especially adapted for ranging applications. A signal corresponding to the PRN code is locally generated and used for decoding the received signal in a manner to reduce ranging errors that can result when multipath (delayed) versions of the radio frequency signal are also present. A significant application of the receiver and signal processing techniques of the present invention is in a Global Positioning System (GPS), wherein a number of such signals from several satellites are simultaneously received and processed in order to obtain information of the position, movement, or the like, of the receiver. A delay locked loop (DLL) correlator, provided in each of the receiver's multiple processing channels, locks onto a line of sight signal from one of the satellites with the effect of any multipath signal(s) being significantly reduced.

REFERENCES:
patent: 4754465 (1988-06-01), Trimble
patent: 4809005 (1989-02-01), Counselman, III
patent: 4847862 (1989-07-01), Braisted et al.
patent: 4928106 (1990-05-01), Ashjaee et al.
patent: 5101416 (1992-03-01), Fenton et al.
patent: 5347536 (1994-09-01), Meehan
patent: 5390207 (1995-02-01), Fenton et al.
patent: 5402441 (1995-03-01), Washizu et al.
patent: 5402450 (1995-03-01), Lennen
patent: 5414729 (1995-05-01), Fenton
patent: 5436935 (1995-07-01), Bernhard et al.
patent: 5493588 (1996-02-01), Lennen
patent: 5517535 (1996-05-01), Kroeger et al.
patent: 5537121 (1996-07-01), Lennen
patent: 5630208 (1997-05-01), Enge et al.
patent: 5734674 (1998-03-01), Fenton et al.
Article by: Townsend et al., "A Practical Approach to the Reduction of Pseudorange Multipath Errors in a L1 GPS Receiver," NovAtel Communications Ltd., pp. 143-148.
New Technology Report Prepared by: P.H. Ware, NASA, Technical Support Package assembled by: JPL Technology Utilization Office, pp. I, 1-2, 1a-9a; Oct. 1994.
Meehan, T.K. "Processing in a GPS Receiver to Reduce Multipath Errors", New Technology Report, Assembled by: JPL Technology Utilization Office, pp. i, 1-2, 1a-9a (Oct. 1994).

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