Digital beacon asymmetry and quantization compensation

Details Digital beacon asymmetry and quantization compensation Digital beacon asymmetry and quantization compensation

2004-03-30

2008-11-04

Maung, Nay (Department: 2618)

Multiplex communications

Communication over free space

Repeater

C342S358000, C342S354000, C342S385000

Reexamination Certificate

active

07447170

ABSTRACT:
A method, apparatus for reducing errors in a plurality of beacon beams is disclosed. The method comprises the steps of computing quantized channel weights {tilde over (W)}cfrom channel weights Wcfor at least some of the channels; estimating the quantization error ΔBafor each of the beacon beams from a difference between the channel weights Wcand the computed quantized channel weights {tilde over (W)}c; and adding the estimated quantization error ΔBato the beacon beams. Similarly, a beacon biases equivalent to the beacon asymmetry error can be computed by the ground beacon beam forming software and uploaded to the on-board software for error compensation. The apparatus comprises one or more means, such as a processor communicatively coupled to a memory storing instructions for performing these operations.

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