US 8,044,840 B2Granted

Method for surveillance of space/air space

AssigneeRheinmetall Air Defence AG

InventorsMarc Honikel, Hanspeter Berger

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Abstract

The invention proposes utilizing the known geometry of the measurements in order to assign them to one another and to resolve ambiguities, wherein the 3D position of an object (3) in space is determined by a spatial section at the same time. This is done using a plurality (N) of sensors (A, B, C) and their geometries (10, 11, 12), wherein a first sensor (A) is part of the master sensor and a space curve (A1) is calculated and then transmitted to the geometry (11) of a sensor (B) which is defined as a slave sensor and whose local geometry (11) is taken into account, a further sensor (C) is then defined as a slave in which the space curves (B1-B3) of the correspondence obtained in the preceding step are calculated and transmitted to the geometry (12) of the new slave sensor (C) together with the master curve (A1), wherein the steps are repeated at least until the last (N) remaining sensor is defined as a slave in a last step (N−1) and the master (A1) and all of its associated measurements of the previous slave sensors (B, C) are transmitted to the local geometry of the last (N) slave sensor and compared with the measurements.

Claims7

Dependent claims

A method for automatic combinational optimization of target determination of a plurality of moving objects with assistance of a plurality of sensors and their displays, comprising the steps of:

(a) defining a first sensor (A) as a master sensor and calculating a master space curve (A1) of the first sensor;
(b) transferring the space curve to a display of a second sensor (B) defined as a slave sensor, the space curve being converted in the display of the slave sensor (B), wherein measurements outside of a relevant, distance and azimuth range that describe the space curve (A1) are not considered;
(c) defining a further sensor (c) as a new slave, in which the space curve (B1-B3) of a correspondence of measurements obtained in the previous step is calculated and transferred, together with the master space curve (A1), to a display of the new slave sensor (C), and the curve is taken into account as a new display;
(d) repeating steps (a)-(c) at least until, in a final step, a last (N) remaining sensor is defined as a slave, the master space curve (A1) and all measurements associated with the master space curve (A1) from the previous slave sensors (B, C . . . N−1) being transferred to the local display of the last (N) slave sensor;
and
(e) displaying the local display of the last slave sensor as an aerial view of a superordinated Cartesian coordinate system of an air space monitoring sensor.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/991,288Filed 20 Jul 2006
Priority: DE 10 2005 041 7052 Sep 2005
Published: US 2010/0007544 A114 Jan 2010
Granted: 25 Oct 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G01S 7/2955
Means for transforming co-ordinates or for evaluating data, e.g. using computers: means for determining the position of the radar coordinate…
G01S 13/87
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose…:…
G01S
Radio direction-finding