Accession Number:

ADA171396

Title:

Two-Dimensional Beamforming Using a Frequency Domain Complex Least Mean-Squares (LMS) Adaptive Filter.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Chan,Francis

Report Date:

1986-06-01

Pagination or Media Count:

138.0

Abstract:

The complex LMS adaptive algorithm developed by Widrow is used in the frequency domain to estimate the azimuth and elevation angles of a plane wave incident upon a planar array. The complex LMS algorithm is applied to two cases. The first case is a passive detection problem. The second case is a pulse communication problem. In both cases, complex weights are determined using the complex LMS algorithm which cophase all of the output electrical signals from the planar array. Three versions of the complex LMS algorithm are studied and their performances are compared. Author

Descriptors:

• *PROCESSING EQUIPMENT
• *BEAM FORMING
• *ADAPTIVE FILTERS
• ALGORITHMS
• SIGNAL PROCESSING
• FREQUENCY
• TWO DIMENSIONAL
• RESOLUTION
• ARRAYS
• THESES
• LEAST SQUARES METHOD

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE