Decoding using a linear metric and interference estimation

Details Decoding using a linear metric and interference estimation Decoding using a linear metric and interference estimation

1993-08-19

1995-05-30

Chin, Stephen

Pulse or digital communications

Receivers

Interference or noise reduction

375343, 375345, 4552451, 455296, H03D 104, H03D 106, H03K 501, H04B 110

Patent

active

054208890

ABSTRACT:
In a decoding system according to the invention, a digital signal received from an AWGN channel interfered by pulse interferences is so decoded (8) that the AGC control signal (10) of the RF/IF circuits of the reception is produced by median filtering (21) for the essential removal of the effect of pulse interferences, and that the interference is measured using a linear metric, whereby an external interference estimation circuit (30) is preferred.

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"A Theoretical Analysis of the Properties of Median Filters" N. C. Gallagher et al., IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 6, Dec. 1981.
"FIR-Median Hybrid Filters", P. Heinonen et al., IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-35, No. 6, Jun. 1987.
"Performance of Digital Matched Filter Correlator with Unknown Interference", C. R. Cahn, IEEE Trans. on Communication Technology, vol. COM-10, No. 6, Dec. 1971.

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