EP0922923A1 - Verfahren zur Kompensation der Displacement-Verzögerungszeit - Google Patents
Verfahren zur Kompensation der Displacement-Verzögerungszeit Download PDFInfo
- Publication number
- EP0922923A1 EP0922923A1 EP98120909A EP98120909A EP0922923A1 EP 0922923 A1 EP0922923 A1 EP 0922923A1 EP 98120909 A EP98120909 A EP 98120909A EP 98120909 A EP98120909 A EP 98120909A EP 0922923 A1 EP0922923 A1 EP 0922923A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- displacement
- head
- search head
- rotation rate
- alignment processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
- F41G7/22—Homing guidance systems
- F41G7/2273—Homing guidance systems characterised by the type of waves
- F41G7/2293—Homing guidance systems characterised by the type of waves using electromagnetic waves other than radio waves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
- F41G7/22—Homing guidance systems
- F41G7/2213—Homing guidance systems maintaining the axis of an orientable seeking head pointed at the target, e.g. target seeking gyro
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G7/00—Direction control systems for self-propelled missiles
- F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
- F41G7/22—Homing guidance systems
- F41G7/2253—Passive homing systems, i.e. comprising a receiver and do not requiring an active illumination of the target
Definitions
- the invention relates to a method for compensating the Displacement delay time according to the preamble of claim 1.
- the indirect displacement prediction mentioned here consists of one Process by the delay time during image data processing and data transmission resulting inaccuracies of the target position in the search header by using known in the system Rotation rates and angles compensated. Due to the image data processing time as well as due to the runtime during data transmission As is known, there are so-called storage errors for the position of a moving, flying or standing target.
- the main task of the weapon system is that at the request of the Protect the ammunition as quickly and accurately as possible during the Assign "handovers". It is known that this is from the weapon system the displacement transferred is out of date by 40 ms. With that be stated that just for the very critical initialization of the homing head tracker - regarding the success of the "handover" - in addition to measurement errors of Visor Tracker and Alignment Processor also errors due to not Time synchronization to be achieved between target position in the image and associated picture content itself. As a solution for improvement According to the current state of the art, displacement only remains “direct predication” via an implemented "fading memory filter” to work in the alignment processor and the approximate Compensation via direct prediction methods, i.e. for example via Alignment processor-implemented "fading memory filter"
- the present invention is therefore based on the object of a method of the type mentioned above to demonstrate that the accuracy of one of the Weapon system target position to be determined for the initialization of the Homing-Head-Trackers improves without this the instruction time too increase.
- the general idea of the invention suggests an "indirect prediction" of Displacements before, at the additional state variables that are already in the system are available for the reconstruction of the current displacement be brought up.
- the weapon system it can be said that it is here the ones already available in the alignment processor AP "Search head slaving rotation rate", which results from the transformed Visor rotation rate is also used for complete predication
- Line of sight movement theoretically predicates the target movement in the Sighting pattern required. This predication can be found in the visor tracker Weapon system can be made.
- Depends on the Tracking accuracy of the sight control loop can, however, also under The target position prediction in the sighting image may not be required.
- the alignment processor In the present case, AP is awarded the predicted LOS (line of sight) angle increment predicted displacement and through Subtraction of the OAS (optical axis seeker) angle increment measured in the homing head HH this displacement is estimated on the corrected current value.
- the AP determines the displacement between the target position in the sighting image (LOS angle) and the position of the optical axis of the seeker head in the sighting image (OAS angle). He takes action , which is not shown in Fig. 3, to that supplied by the visor tracker Target position in the sighting image (LOS angle) back.
- the weapon system or AP predicts a time of 40 ms Sight lines (LOS) - angle element is calculated and the other is in the Ammunition the seeker axis created during the 40 ms delay time (OAS) - Angular increment from existing state variables determined.
- the two increments become the conventional one Dusplacement superimposed and lead to displacement predicted by 40 ms, which is used to initialize the HH tracker.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
- Fig. 1
- ein Blockschaltbild eines Ausführungsbeispiels zu dem Konzept der direkten Prädiktion" des Displacements,
- Fig. 2
- ein Blockschaltbild eines prinzipiellen zum Stand der Technik zählenden Aufbaus eines Suchkopf-Nachführregelkreises über den Alignmentprozessor,
- Fig. 3
- ein Blockschaltbild des Konzeptes der "indirekten Prädiktion" des Displacements.
realisiert und getestet werden. Die Ergebnisseliefern eine deutliche Steigerung der "Handover-Performance", was nun dazu geführt hat,daß die "indirekte Displacementprädikation" bereits über einen auch von MBUK akzeptierten Änderungsanteag in Hardware bzw. operationelle Software eingeflossen ist.
Claims (2)
- Verfahren zur Kompensation der Verzögerungszeit (Displacementprädiktion) während der Ziel-Datenverarbeitung- und -übertragung von einer die Zielposition ermittelnden Waffenanlage zur verschießenden Munition, dadurch gekennzeichnet, daß zur Rekonstruktion eines Displacements zusätzliche Zustandsgrößen wie Suchkopf-Slaving-Drehrate und die integrierte Suchkopfdrehrate des vorhandenen Suchkopf (SK)-Nachführregelkreises über einen Alignmentprocessor (AP) zur aktuellen Rekonstruktion des Displacements verwendet und kombiniert werden, wobei der Alignmentprocessor (AP) ein um das prädizierte Sichtlinien-Winkel-Inkrement (LOS) vorausberechnete Displacement liefert, das im Homing-Head (HH) durch Subtraktion des gemessenen Winkel-Inkrements um die optischeAchse des Suchkopfes (OAS) auf den geschätzten aktuellen Wert korrigiert.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das zur Homing-Head-Tracker-Initialisierung verwendete Displacement mit dem Suchkopfbild synchronisiert wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997150672 DE19750672C2 (de) | 1997-11-15 | 1997-11-15 | Verfahren zur Kompensation der Displacement-Verzögerungszeit |
| DE19750672 | 1997-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0922923A1 true EP0922923A1 (de) | 1999-06-16 |
| EP0922923B1 EP0922923B1 (de) | 2002-08-28 |
Family
ID=7848846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19980120909 Expired - Lifetime EP0922923B1 (de) | 1997-11-15 | 1998-11-04 | Verfahren zur Kompensation der Displacement-Verzögerungszeit |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0922923B1 (de) |
| DE (1) | DE19750672C2 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0752573A2 (de) * | 1995-07-06 | 1997-01-08 | Raytheon Company | Zündungsanlage für Flügkörper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3327384A1 (de) * | 1983-07-29 | 1985-02-07 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Visiersystem fuer einen lenkflugkoerper |
-
1997
- 1997-11-15 DE DE1997150672 patent/DE19750672C2/de not_active Expired - Lifetime
-
1998
- 1998-11-04 EP EP19980120909 patent/EP0922923B1/de not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0752573A2 (de) * | 1995-07-06 | 1997-01-08 | Raytheon Company | Zündungsanlage für Flügkörper |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0922923B1 (de) | 2002-08-28 |
| DE19750672A1 (de) | 1999-05-27 |
| DE19750672C2 (de) | 2000-11-23 |
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