Accession Number:

ADA065329

Title:

An Improved Coherent Processor for Ambiguity Function Display.

Descriptive Note:

Interim rept.,

Corporate Author:

TEXAS TECH UNIV LUBBOCK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

• Marks,Robert J. , II
• Walkup,John F.
• Krile,Thomas F.

Report Date:

1978-01-01

Pagination or Media Count:

5.0

Abstract:

A coherent optical processor for displaying a signals ambiguity function is described. The required time delay is realized by 45 deg. rotations of two identical input transparencies, and the Doppler shift by a 1-D Fourier transformation. The modulus squared of the entire ambiguity function is displayed in the output plane Doppler shift-time delay. Examples of the optically computed ambiguity functions for single and double pulse signals are sshown to be in excellent agreement with the theory. Advantages of this approach over various alternative schemes are discussed. Author

Descriptors:

• *SIGNAL PROCESSING
• *RADAR SIGNALS
• *OPTICAL PROCESSING
• FOURIER TRANSFORMATION
• DISPLAY SYSTEMS
• COHERENT OPTICAL RADIATION
• TIME SIGNALS
• INFORMATION PROCESSING
• DOPPLER EFFECT
• DELAY CIRCUITS

Subject Categories:

• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE