Sampling threshold and gain for satellite navigation receiver

Details Sampling threshold and gain for satellite navigation receiver Sampling threshold and gain for satellite navigation receiver

2011-03-22

2011-03-22

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Receivers

Automatic gain control

C375S147000, C375S245000, C455S234100, C455S136000, C455S138000

Reexamination Certificate

active

07912158

ABSTRACT:
A satellite navigation device including a flexible radio frequency (RF) receiver is described. The receiver receives a signal that includes at least a first spread-spectrum signal from a first satellite. The receiver has a first channel that includes an analog-to-digital (A/D) converter to sample and quantize the signal and an automatic gain control (AGC) to adjust an amplification of the signal. The A/D converter has a first non-zero quantization threshold magnitude and a second non-zero quantization threshold magnitude. The AGC may adjust a gain in accordance with the first non-zero quantization threshold magnitude. The gain may correspond to a first pre-determined probability of a non-zero sample and the second non-zero quantization threshold magnitude may correspond to a second pre-determined probability of a non-zero sample.

REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5101416 (1992-03-01), Fenton et al.
patent: 5281968 (1994-01-01), Iwanaga
patent: 5493454 (1996-02-01), Ziperovich et al.
patent: 6038091 (2000-03-01), Reed et al.
patent: 6038435 (2000-03-01), Zhang
patent: 6816539 (2004-11-01), Rog
patent: 7010278 (2006-03-01), Kirschenmann et al.
Amoroso, F., “Adaptive A/D Converter to Suppress CW Interference in DSPN Spread-Spectrum Communications,” IEEE Transactions on Communications, vol. COM-32, No. 10, Oct. 1983, pp. 1117-1123.
Maenpa, J.E., et al., “New Interference Rejection Technology from Lecia,” Institute of Navigation, Proceedings of the Satellite Navigation Section, Sep. 1997, pp. 1-10.
International Search Report for International Application No. PCT/US2006/043168, mailed Apr. 5, 2007.

Affiliated with

Also associated with

Rating

Sampling threshold and gain for satellite navigation receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sampling threshold and gain for satellite navigation receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sampling threshold and gain for satellite navigation receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2696791