Generalized filtering in acoustooptic systems using area modulation

Karnowski, Thomas P.; VanderLugt, A.

doi:10.1364/ao.30.002344

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Cited by 3 publications

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Acousto‐Optical Signal Processing

Riza

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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The sections in this article are The Acousto‐Optical Device Model Acousto‐Optical System Components and Issues Optical Processing Techniques Radio‐Frequency Spectrum Analysis Using Acousto‐Optical Devices Acousto‐Optical Correlators Acknowledgment

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Acousto‐Optical Signal Processing

Riza

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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Acousto-optic channel equalization for digital communications

Anderson

1992

Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III

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Digital communication systems use complex modulation schemes that require powerful signal-processing techniques to correct channel distortions and to minimize bit error rates. In this paper, acousto-optic processors are used, in conjunction with adaptive digital equalizers, to reduce the bit error rate of a microwave digital radio receiver. The acousto-optic processor implements an inverse channel filter that is rapidly adaptable to time varying distortions. A specific architecture is identified and a laboratory system is tested to verify the ability of the processor to track and correct time-varying channels. Computer simulations are used to show that the hybrid acousto-optic and digital equalizer allows a four-fold increase in the modulation capacity of radio, relative to all digital equalization, while improving the bit error rate performance.

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Acousto-optic channel equalization for microwave digital radios

Anderson

1993

Appl. Opt.

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Digital radio transmission systems use complex modulation schemes that require powerful signalprocessing techniques to correct channel distortions and to minimize bit error rates. Acousto-optic processors are used, in conjunction with adaptive digital equalizers, to reduce the bit error rate of the digital radio receiver. The acousto-optic processor implements an inverse channel filter that is rapidly adaptable to time-varying distortions. A specific architecture is identified and a laboratory system is tested to verify the ability of the processor to track and correct time-varying channels. Computer simulations are used to show that the hybrid acousto-optic and digital equalizer permits a fourfold increase in the modulation capacity of radio, relative to all digital equalization, while improving the bit error rate performance.

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Generalized filtering in acoustooptic systems using area modulation

Cited by 3 publications

References 5 publications

Acousto‐Optical Signal Processing

Acousto‐Optical Signal Processing

Acousto-optic channel equalization for digital communications

Acousto-optic channel equalization for microwave digital radios

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