复信号功率估计的高效算法及其优化

黄爱苹

复信号功率估计的高效算法及其优化

黄爱苹

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出版历程
- 收稿日期: 2000-01-28
- 修回日期: 2000-07-18
- 刊出日期: 2002-03-19

Efficient algorithms optimization for complex-valued signal estimation

Huang Aiping

摘要

摘要: 该文讨论了用于含噪复值信号功率估计的两种结构简单、计算高效、可具有预测特性、可保证输出估计恒为正值的功率估计系统。功率估计的偏差和方差可以通过优化设计FIR子系统来达到最小或减小。用于移动通信CDMA系统功率控制的仿真表明:控制能力提高,低信噪比时系统差错率下降。
- 复值信号; 功率估计; 算法; 优化
Abstract: Two algorithms are discussed for estimating the power of the signal component from a noisy signal. They have simple structures, thus are computationally very efficient. They can be designed to be predictive. The bias and variance of the power estimation can be minimized or reduced by optimizing the FIR subsystems. It is shown by simulations that employing them to the power control loop in a CDMA mobile communication system results in higher control abilities and lower BERs when signal-to-noise ratio is low.

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L.E.Franks,Carrier and bit synchronization in data communication - A tutorial review,IEEE Trans.on Comm.,1980,COM-28(8),1107-1121.[2]L.Atlas,J.Fang,P.Loughlin,W.Music,Resolution advantages of quadratic signal processing,SPIE Int.Symp.,San Diego,CA: July 1991,134-143.[3]L.Atlas,J.Fang,Quadratic detectors for general nonlinear analysis of speech,ICASSP92,San Francisco,CA: March 1992,II-9-II-12.[4]E.H.Adelson,J.R.Bergen,Spatiotemporal energy models perception of motion,J.Opt.Soc.Amer.A,1985,2(2),284-299.[5]K.F.Lee,H.W.Hon,R.Reddy,An overview of the SPHINX speech recognition system,IEEE Trans.on Acoustics Speech,Signal Processing,1990,38(1),35-45.[6]P.Maragos,T.F.Quatieri,J.F.Kaiser,Speech nonlinearities,mnodulations,and energy operators,IEEE ICASSP91,Toronto,Canada,1991,421-424.[7]P.Maragos,A.C.Bovik,T.F.Quatieri,A multidimensional energy operator for image prccessing,SPIE Symup.Visual Commun.Image Processing,Boston,MA,1992,177-178.[8]S.B.Narayanan,J.Fang,G.Bernard,L.Atlas,Feature representations for monitoring of tool wear,ICASSP94,Adelaide,South Australia: April 1994,VI-137-1-40.[9]J.Fang,L.E.Atlas,Quadratic detectors for energy estimation,IEEE Trans.on Signal Processing,1995,43(11),2582-2594.[10]J.M.A.Tanskanen,A.Huang,T.I.Laakso,S.J.Ovaska,Prediction of received signal power in CDMA cellular systems,IEEE Vehicular Technology Conference,Chicago,IL: July 1995,922-926.[11]B.Picinbono,Quadratic filters,Int.Conf.on Acoustics,Speech,and Signal Processing,Paris,France,May 1982,298-301.[12]G.Sicuranza,Quadratic filters for signal processing,Proc.IEEE,1992,80(8),1263-1285.[13]I.Pitas,A.N.Venetsanopoulos,Nonlinear Digital Filters,Boston,Kluwer Academic Publishers,1990,245-248.[14]C.L.Nikias,Higher-Order Spectra Analysis,Englewood Cliffs,NJ,Prentice-Hall,1993,Sectiou 2.2.[15]A.Huang,J.Tans kanen,I.Hartimo,Design of optimum power estimator based on Wiener model applied to mobile transmitter power control,IEEE Int.Symp.on Circuits and Systems,Monterey,CA.Mlay 1998,V249-252.[16]P.Heinonen,Y.Neuvo,FIR-median hybrid filters with predictive FIR substructures,IEEE Trans.ou ASSP,1988,36(6),892-899.[17]Aiping Huang,Timo Laakso,Optimal design and adaptive implementation of power estimation using the Hammerstein model,IEEE Midwest Symposium on Circuits and Systems,Ames,Iowa:August,1996,648-651.[18]Aiping Huang,Efficient Methods for Power Estimation - Optimization and Implementation (Licentiate Thesis),Espoo,Finland,Helsinki University of Technology,1997,Section 5.2.

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