Decorrelated power amplifier linearizers

Amplifiers – Hum or noise or distortion bucking introduced into signal...

Reexamination Certificate

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C330S151000, C330S052000, C330S149000

Reexamination Certificate

active

10780658

ABSTRACT:
A linearizer for an amplifier includes an adaptation controller having M monitor signals as inputs. The controller outputs M control settings. The adaptation controller determines M uncorrelated adjustment settings from the M monitor signal inputs. Using the M uncorrelated adjustment settings, the controller adjusts the M control settings for the linearizer.

REFERENCES:
patent: 4379994 (1983-04-01), Baumann
patent: 4879519 (1989-11-01), Myer
patent: 5130663 (1992-07-01), Tattersall, Jr.
patent: 5157345 (1992-10-01), Kennington et al.
patent: 5307022 (1994-04-01), Tattersall, Jr. et al.
patent: 5485120 (1996-01-01), Anvari
patent: 5489875 (1996-02-01), Cavers
patent: 5532642 (1996-07-01), Takai
patent: 5565814 (1996-10-01), Fukuchi
patent: 5610554 (1997-03-01), Anvari
patent: 5617061 (1997-04-01), Fukuchi
patent: 5621354 (1997-04-01), Mitzlaff
patent: 5644268 (1997-07-01), Hang
patent: 5694395 (1997-12-01), Myer et al.
patent: 5742201 (1998-04-01), Eisenberg et al.
patent: 5760646 (1998-06-01), Belcher et al.
patent: 5789976 (1998-08-01), Ghannouchi et al.
patent: 5815036 (1998-09-01), Yoshikawa et al.
patent: 5831478 (1998-11-01), Long
patent: 5862459 (1999-01-01), Charas
patent: 5867065 (1999-02-01), Leyendecker
patent: 5898339 (1999-04-01), Maruyama et al.
patent: 5912586 (1999-06-01), Mitzlaff
patent: 5923214 (1999-07-01), Mitzlaff
patent: 6075411 (2000-06-01), Briffa et al.
patent: 6166601 (2000-12-01), Shalom et al.
patent: 6208207 (2001-03-01), Cavers
patent: 6414546 (2002-07-01), Cavers
patent: 6456160 (2002-09-01), Nakayama et al.
patent: 0675594 (1995-10-01), None
patent: 58 175309 (1983-10-01), None
S. Grant, “A DSP Controlled Adaptive Feedforward Amplifiedr Linearizer,” Jul., 1996.
S. Grant and J. Carvers, “A DSP Controlled Adaptive Feedforward Amplifier Linearizer,” ICUPC 1996.
A. Smith, “A Wideband Adaptive Feedforward Amplifier Lineariser,” Aug. 1997.
A. Smith and J. Carvers, “A Wideband Architecture For Adaptive Feedforward Linearization,”May 18, 1998.
F. Amoroso, “Spectral Containment By PreDistortion of OQPSK Signal,” Oct. 1998.
J.Cavers, “Adaption Behavior of a Feedforward Amplifier Linearizer,” Feb. 1995.
Q. Cheng, et al., A1.9 GHZ Adaptive Feedforward Power Amplifier, Nov. 1998.
J.C. Lagarias, et al. Convergence Properties of the Nedler-Mead Simplex Algorithm in Low Dimensions, SAIM J. Optim. May, 1997.
P.B. Kennington and D.W. Bennett, Linear Distortion Correction using Feed-forward System, IEEE Trasnactions on Vehicular Technology vol. 45 No. 1 (Feb. 1996).
J.Chen, et al., Adaptive joint lineraisation / equillisation with delay alignments for a wideband power amplifier, Mar. 1998.
J.T. Chen, H.S. Tsai and Y.K. Chen, Fast Adaptive Wide-band Power Amplifier Feed-forward Linearizer, IEEE Vehicular Technology conference, Ottawa, (1998). No Month.
J.K. Cavers, Convergence Behavior of an Adaptive Feed-forward Linearizer, IEEE Vehicular Technology Conference, (1994), No Month.
F.T. Luk and S. Qiao, Analysis of a Recursive Least-squares Signal Processing Algorithm, Society for Industrial and Applied Mathematics, vol. 10, No. 3, (May 1989).
S. Ljung and L. Ljung, Error Propagation Properties of Recursive Least-squares Adaptation Algorithims, Automatica, vol. 21, No. 2 (1985), No Month.
E. Eweda and O. Macchi, Convergence of the RLS and LMS Adaptive Filters, IEEE Transactions on Circuits and Systems, vol. CAS-34, No. 7, (Jul. 1987).
D.H. Shi and F. Kozin, On Almost Sure Convergence of Adaptive Algorithms, IEEE Transactions on Automatic Control, vol. AC-31, No. 5, (May 1986).
L.L. Horowitz and K.D. Seene, Performance Advantage of Complex LMS for Controlling Narrow-band Adaptive Arrays, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 3, (Jun. 1981).
G.A. Clark, S.K. Mitra, and S.R. parker, Block Implementation of Adaptive Digital Filters, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 3, (Jun. 1981).
A. Feuer, Performance Analysis of the Block Least Mean Square Algorithm, IEEE Transactions on Circuits and Systems, vol. CAS-32, No. 9, (Jul. 1985).
S.S. Narayan, A.M. Peterson, M.J. Narasimha, Transform Domain LMS Algorithm, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-31, No. 3, (Jun. 1983).
G.A. Clark, S.R. Parker, and S.K. Mitra, A Unified Approach to Time-and Frequency-Domain Realization of FIR Adaptive Digital Filters, IEEE-Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-31, No. 5, (Oct. 1983).
G. Panda, B. Mulgrew, C.F.N. Cowan, and P.M. Grant, A Self-Orthogonalizing Efficient Block Adaptive Filter, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-34, No. 6, (Dec. 1986).
J. Chao, H. Perez, and S. Tsujii, A Fast Adaptive Filter Algorithm Using Elgenvalue Reciprocals as Stepsizes, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-38, No. 8, (Aug. 1990).
S.J. Elliot and B. Fafaely, Rapid Frequency-Domain Adaptation of Causal FIR Filters, IEEE Signal Processing Letters, vol. 4, No. 12, (Dec. 1997).
R.M. Gray, On the Asymptotic Elgenvalue Distribution of Toeplitz Matrices, IEEE Transactions on Information Theory, vol. IT-18, No.6, (Nov. 1972).
M. Johansson and L. Sundstorm, Linearization of RF Multicarrier Amplifiers using Cartesian Feedback, Electronic Letters, vol. 30, No. 14, (Jul. 7, 1994).
Hau et al. “Design and characterization of a microwave fee-forward amplifier with Improved wide-band distortion cancellation” IEEE Transactions on Microwave Theory and Techniques, vol. 49, issue 1, Jan. 2001, pp. 200-203.

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