Automatic BNE seed calculator

Details Automatic BNE seed calculator Automatic BNE seed calculator

2011-08-16

2011-08-16

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

08001167

ABSTRACT:
An automatic background noise estimator (BNE) seed calculator for determining a starting point for a BNE circuit which tracks the noise floor received by a receiver. The BNE seed calculator may sample a plurality of data points from the receiver and calculate the magnitude of each point. The seed calculator may then determine the peak magnitude value, a plurality of mean values, and the variance of the sampled points. A plurality of lookup tables are used to compare the peak, mean, and variance values with simulated peak, mean, and variance values to estimate the noise floor level of the actual signal and use that to determine the optimum BNE seed value. Simulation software such as MATLAB is used to develop the lookup tables by simulating peak, mean, and variance values based on a plurality of signal-to-noise ratios (SNR).

REFERENCES:
patent: 4249177 (1981-02-01), Chen
patent: 5257211 (1993-10-01), Noga
patent: 5539682 (1996-07-01), Jain et al.
patent: 6556967 (2003-04-01), Nelson et al.

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