A method for amplitude response estimation in quadratic channels

Mehmet Keskinoz; B. V.K. Vijaya Kumar

doi:10.1117/12.453415

A method for amplitude response estimation in quadratic channels

Mehmet Keskinoz, B. V.K. Vijaya Kumar^*

^*Corresponding author for this work

Carnegie Mellon University

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Like other coherent optical storage channels, a volume holographic storage channel (VHSC) is a quadratic channel since its output is a function of the magnitude-square of the light incident on the photo-detector array. Because of such intensity detectione, the sign/phase information at the output is destroyed which makes the estimation of the amplitude response diffucult. In this paper, we present a new method called modified least mean squares (MLMS) method to estimate the amplitude channel response of a Volume Holographic Storage Channel in the presence of quadratic non-linearity. Numerical simulations show that MLMS is very effective in estimating the amplitude response of such channels under even severe loss of sign information.

Original language	English
Pages (from-to)	574-579
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4342
DOIs	https://doi.org/10.1117/12.453415
Publication status	Published - 2002
Externally published	Yes
Event	Optical Data Storage 2001 - Santa Fe,NM, United States Duration: 22 Apr 2001 → 25 Apr 2001

Keywords

Amplitude Response
Identification
Quadratic Channels
Volume Holographic Storage

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10.1117/12.453415

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title = "A method for amplitude response estimation in quadratic channels",

abstract = "Like other coherent optical storage channels, a volume holographic storage channel (VHSC) is a quadratic channel since its output is a function of the magnitude-square of the light incident on the photo-detector array. Because of such intensity detectione, the sign/phase information at the output is destroyed which makes the estimation of the amplitude response diffucult. In this paper, we present a new method called modified least mean squares (MLMS) method to estimate the amplitude channel response of a Volume Holographic Storage Channel in the presence of quadratic non-linearity. Numerical simulations show that MLMS is very effective in estimating the amplitude response of such channels under even severe loss of sign information.",

keywords = "Amplitude Response, Identification, Quadratic Channels, Volume Holographic Storage",

author = "Mehmet Keskinoz and {Vijaya Kumar}, {B. V.K.}",

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T1 - A method for amplitude response estimation in quadratic channels

AU - Keskinoz, Mehmet

AU - Vijaya Kumar, B. V.K.

PY - 2002

Y1 - 2002

N2 - Like other coherent optical storage channels, a volume holographic storage channel (VHSC) is a quadratic channel since its output is a function of the magnitude-square of the light incident on the photo-detector array. Because of such intensity detectione, the sign/phase information at the output is destroyed which makes the estimation of the amplitude response diffucult. In this paper, we present a new method called modified least mean squares (MLMS) method to estimate the amplitude channel response of a Volume Holographic Storage Channel in the presence of quadratic non-linearity. Numerical simulations show that MLMS is very effective in estimating the amplitude response of such channels under even severe loss of sign information.

AB - Like other coherent optical storage channels, a volume holographic storage channel (VHSC) is a quadratic channel since its output is a function of the magnitude-square of the light incident on the photo-detector array. Because of such intensity detectione, the sign/phase information at the output is destroyed which makes the estimation of the amplitude response diffucult. In this paper, we present a new method called modified least mean squares (MLMS) method to estimate the amplitude channel response of a Volume Holographic Storage Channel in the presence of quadratic non-linearity. Numerical simulations show that MLMS is very effective in estimating the amplitude response of such channels under even severe loss of sign information.

KW - Amplitude Response

KW - Identification

KW - Quadratic Channels

KW - Volume Holographic Storage

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U2 - 10.1117/12.453415

DO - 10.1117/12.453415

M3 - Conference article

AN - SCOPUS:0036381194

SN - 0277-786X

VL - 4342

SP - 574

EP - 579

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Optical Data Storage 2001

Y2 - 22 April 2001 through 25 April 2001

ER -

A method for amplitude response estimation in quadratic channels

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Keywords

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