Accession Number:

ADA235799

Title:

Impulse Arrays

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Temes, C. L.

Report Date:

1991-05-03

Pagination or Media Count:

31.0

Abstract:

This report considers impulse radar signals in terms of their propagation from an array of elements. The far-field electric vector is proportional to the derivative of the current in an infinitesimal dipole representing each element. Although not physically realizable, this model is used as an approximation to illustrate some array properties peculiar to impulse, or ultra-wideband UWB, excitations. Thus, for example, a 1-ns rounded baseband pulse with a cosine-squared shape theoretically propagates as a single sinusoidal cycle centered at L-band 1 GHz with 100 bandwidth. The far field from an array of elements is considered as a function of angle.

Descriptors:

• *RADAR SIGNALS
• PULSES
• ARRAYS
• FAR FIELD

Subject Categories:

• Electrical and Electronic Equipment
• Active and Passive Radar Detection and Equipment
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE