Accession Number:

ADA237564

Title:

Nonlinear Computerized Methodology. A. Angle of Arrival Estimation. B. Data Modeling and Identification

Descriptive Note:

Final rept.,

Corporate Author:

OREGON STATE UNIV CORVALLIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s):

• Mohler, R. R.

Report Date:

1991-06-10

Pagination or Media Count:

17.0

Abstract:

Multiple convolution of signals sonar or radar has been analyzed as a nonlinear preprocessing technique for source localization from arrays of receivers, for time-delay estimation in general, and for spectral estimation of nonstationary signals. The method has proved successful by computer simulation for many troublesome cases as a supplement to MUSIC and its adaptations and as a simple alternative or representation of the Wigner-Ville distribution. Also, a new two dimensional image processing method is being investigated by a transformed two-term Volterra series algorithm. The method appears promising for such applications as underwater green-laser data processing and other cases involving spatially coherent light and related nonlinear terms.

Descriptors:

• *COMPUTERIZED SIMULATION
• DATA MANAGEMENT
• MODELS
• PROCESSING
• ANGLE OF ARRIVAL
• ARRAYS
• RADAR
• ESTIMATES
• TIME
• COHERENT OPTICAL RADIATION
• SPECTRA
• NONLINEAR SYSTEMS
• SIGNALS
• RECEIVERS
• DELAY
• COMPUTER APPLICATIONS
• SONAR
• PREPROCESSING
• CONVOLUTION
• MUSIC
• METHODOLOGY

Subject Categories:

• Acoustic Detection and Detectors
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE