METHOD FOR DETECTING AND CLASSIFYING HELICOPTERS
Assignee
LICENTIA PATENT-VERWALTUNGS-GMBH
Filed
Aug 11, 1986
Granted
Jul 27, 1993
Location
ULM DE
Abstract
To detect and classify a helicopter as a target by means of a radar system equipped with a Doppler filter bank, an initial determination is made as to whether the threshold value has been exceeded in a substantial number of the individual filters of the Doppler filter bank, and if so, the width of that amplitude band delimited by the highest and lowest amplitudes of the filter output signals is determined and a decision regarding the presence of a helicopter target is derived from the width of the amplitude band.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 6, 1987
Rescinded
Mar 2, 1992
Duration
4 years, 10 months
Inventor
- 1ALBRECHT LUDLOFF
Record Details
- Patent number
- US 5231402
- Application
- 00690095
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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