Signal correlation technique for a receiver of a spread spectrum

Details Signal correlation technique for a receiver of a spread spectrum Signal correlation technique for a receiver of a spread spectrum

1996-09-25

1999-05-04

Bocure, Tesfaldet

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375347, H04L 2706, H04L 102

Patent

active

059011831

ABSTRACT:
A receiver of a radio frequency signal having a pseudo-random noise (PRN) code modulated on a carrier, and techniques of processing such a signal that are especially adapted for ranging applications. Such an application is in a global positioning system (GPS or GLONASS) receiver. Both of the receiver DLL code and PLL carrier loops include a loop component that senses an error in its main loop caused by the presence of a multipath signal. The main loop is continuously adjusted by this sensed error, thereby causing the loop to track more precisely and minimize the effect of the multipath signal. The result is a more accurate range measurement.

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Weill, L. et al., "Achieving Theoretical Accuracy Limits For Pseudo-ranging In The Presence Of Multipath," Proceedings of ION GPS-95 Meeting (Sep. 12-15, 1995) 10 pages.
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