Pulse or digital communications – Equalizers – Automatic
Patent
1996-01-31
1998-05-05
Vo, Don N.
Pulse or digital communications
Equalizers
Automatic
375235, 375341, 375347, 375350, H03H 730, H03H 740
Patent
active
057486735
ABSTRACT:
A data receiving apparatus comprising: a receiving portion for receiving a desired radio wave signal including a desired baseband signal and an interference radio wave signal including an interference baseband signal, the desired radio wave signal and the interference radio wave signal having substantially the same frequency; first weighting circuit for weighting an output of the receiving circuit with a first coefficient adaptively renewed such that the desired baseband signal is reproduced; a subtracting circuit coupled to the first weighting circuit; a first judging circuit coupled to the first subtracting circuit; a second weighting circuit for weighting the baseband signal with a second coefficient adaptively renewed such that the interference baseband signal is reproduced; a second judging circuit coupled to the second weighting circuit; and a supplying circuit for supplying the reproduced interference baseband signal to the subtracting circuit, the subtracting circuit effecting a subtraction between an output of the first weighting circuit and an output of the supplying circuit. Modifications for diversity receiving, delayed component cancelling, receiving timing adjusting are also disclosed.
REFERENCES:
H. Yoshino et al, Adaptive Interference Canceller Based Upon RLS-MLSE, The Transactions of the Institute of Electronics, Information and Communication Engineers B-II, vol. J77-B-II, No. 2, Feb. 1994, pp. 74-84.
Futagi Sadaki
Uesugi Mitsuru
Matsushita Electric - Industrial Co., Ltd.
Vo Don N.
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