Accession Number:

ADA278385

Title:

A New Tool for Signal Processing

Descriptive Note:

Final rept. 1 Jul 1992-31 Oct 1993

Corporate Author:

CITY UNIV OF NEW YORK

Personal Author(s):

• Auslander, Louis

Report Date:

1993-10-31

Pagination or Media Count:

4.0

Abstract:

Recent work has continued to study applications of the Weil transform to radar signal processing and, in a parallel effort, to multi-access spread spectrum communications. The main thrust of the work is the relationship between the Weil transform of a waveform and the ambiguity surface of the wave-form. The study of this relationship has led to a fundamental observation the cancellation properties of a waveform necessary for the creation of a thumbtack- like ambiguity surface may be viewed as arising from the pattern of zeros and non-trivial winding numbers of the Weil transform of the waveform. This point of view is exposited and used to reinterpret classical radar waveform design techniques, while also providing a new method for radar waveform design. Additionally, a new technique for modifying or shaping waveforms has been developed. This consists of changing a wave-form by multiplying its Weil transform by doubly-periodic functions and taking the inverse Weil transform to produce a new signal.

Descriptors:

• *SIGNAL PROCESSING
• *RADAR SIGNALS
• FUNCTIONS
• WAVEFORMS
• RADAR
• SPREAD SPECTRUM
• PERIODIC FUNCTIONS
• SURFACES
• PATTERNS
• WORK

Subject Categories:

• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE