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Spectral window of the acousto-optic folded spectrum analyzer.

|September 22, 2010

Summary

This study analyzes the spectral window of acousto-optic folded spectrum analyzers. The analysis reveals a characteristic that may limit the applicability of a super-fine-resolution variant in certain frequency ranges.

Area of Science:

Optical Engineering
Signal Processing
Acousto-Optics

Background:

Conventional digital spectrum analyzers have limitations.
Acousto-optic folded spectrum analyzers offer an alternative approach.
Understanding system design parameters is crucial for optimization.

Purpose of the Study:

To derive and analyze the spectral window function of the acousto-optic folded spectrum analyzer.
To clarify distinguishing characteristics compared to digital spectrum analyzers.
To investigate the spectral window of a super-fine-resolution variant.

Main Methods:

Derivation of the spectral window function.
Analysis of system design parameters and their relationships.
Determination of the spectral window for a specific super-fine-resolution implementation.

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Main Results:

The spectral window function provides informative insights into system characteristics.
Key differences between acousto-optic and digital spectrum analyzers are clarified.
The super-fine-resolution variant exhibits a two-main-lobe spectral window in narrow-frequency ranges.

Conclusions:

The derived spectral window aids in understanding and selecting design parameters for acousto-optic folded spectrum analyzers.
The super-fine-resolution variant's spectral window characteristic can be a significant limitation for specific applications.