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Parameters of spinning AM reticles
Applied Optics
|August 12, 2010
Summary
A novel method uses amplitude modulation (AM) spinning reticles with graded transmission for precise target location. This approach integrates multiple AM parameters and combines them with frequency modulation (FM) parameters in a single reticle.
Area of Science:
- Optical engineering
- Signal processing
Background:
- Spinning reticles are used for target tracking and location.
- Amplitude modulation (AM) has been explored for reticle-based systems.
- Previous AM reticles involved complex parameter functions.
Purpose of the Study:
- To introduce a new method for target location using AM spinning reticles.
- To present an integrated approach for AM reticle design.
- To explore the combination of AM and FM parameters in reticles.
Main Methods:
- Utilizing graded transmission capabilities for AM.
- Analyzing amplitude vs. angle, amplitude vs. radius, and phase parameters.
- Developing a general equation relating AM parameters to reticle transmission.
Main Results:
- Demonstrated a new method for obtaining AM for target location.
- Showcased the integration of multiple AM parameters into a single reticle.
- Confirmed the feasibility of combining AM and FM parameters within one reticle.
Conclusions:
- The proposed method offers a new way to achieve amplitude modulation for target location.
- Integrated and combined AM/FM reticle designs are achievable.
- A general equation facilitates the design and analysis of AM reticles.
