Differential decoder followed by non-linear compensator

Details Differential decoder followed by non-linear compensator Differential decoder followed by non-linear compensator

2003-07-24

2009-11-10

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S340000

Reexamination Certificate

active

07616709

ABSTRACT:
A receiver including a (differential-quadrature-) phase-shift-keying demodulator (4) and a differential detector (10) having a decoder (19), is provided with a non-linear compensator (20) for compensating the decoder output siqnal for (part of) an interference term, to improve the decoding process and to reduce the number of incorrect decisions. The non-linear compensator (20) includes a channel estimator (22) for estimating a coefficient of a term of the decoder output siqnal and removers (21,23) for removing the term from the decoder output signal.

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Cheol-Hee Park et al; “Channel Estimation and DC-Offset Compensation Schemes for Frequency-Hopped Bluetooth Networks”, IEEE Communications Letters, vol. 5, No. 1, Jan. 2001, pp. 4-6.

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