Method for Direction Finding by Means of Monopulse Formation
AssigneeEADS Deutschland GmbH
InventorRobert SCHNEIDER
Life of this patent
Estimating the term…
Abstract
A method for direction finding by means of monopulse formation in a radar system with electronically controlled group antenna and analog beam shaping of sum and difference channels, a self-test of the antenna being carried out to identify failed receiving elements, and the result of the self-test going directly into the monopulse formation and the test thereby being error corrected. The result of the self-test is converted into correction values that, independently of the antenna viewing direction, are combined with those from the sum channel signal and the difference channel signals of the antenna.
Claims4
A method for direction finding by means of monopulse formation in a radar system with electronically controlled group antenna and analog beam shaping of sum and difference channels, the method comprising:
- performing a self-test of the antenna to identify failed receiving elements, and a result of the self-test goes directly into the monopulse formation and said test is thereby error corrected;
- converting the result of the self-test into correction values (C, μx, μy) that, independently of the antenna viewing direction, are combined as follows with those from the sum channel signal (Σ) and the difference channel signals (Δx,Δy) of the antenna:
- (
- δ
-
-
- u
- corr
- δ
-
-
- v
- corr
- )
- =
- C
- ·
- (
- arctan
-
- (
- Im
-
- {
- Δ
- x
- E
- }
- )
- -
- μ
- x
- arctan
-
- (
- Im
-
- {
- Δ
-
-
- y
- E
- }
- )
- -
- μ
- y
- )
- ,
- δucorr and δvcorr being the corrected bearing values.
Dependencies are inferred from the claim text.