CA2322378A1 - Method for displaying radar images of a target region to be monitored - Google Patents
Method for displaying radar images of a target region to be monitored Download PDFInfo
- Publication number
- CA2322378A1 CA2322378A1 CA002322378A CA2322378A CA2322378A1 CA 2322378 A1 CA2322378 A1 CA 2322378A1 CA 002322378 A CA002322378 A CA 002322378A CA 2322378 A CA2322378 A CA 2322378A CA 2322378 A1 CA2322378 A1 CA 2322378A1
- Authority
- CA
- Canada
- Prior art keywords
- images
- radar
- displayed
- target region
- optical images
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/062—Cathode-ray tube displays or other two dimensional or three-dimensional displays in which different colours are used
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
According to the invention a radar system covering a target area to be monitored such as an airport, seaport or river port, generates radar images in the approach phase. Said radar images show the target area to be monitored as an image taken from the position of the approaching radar system. Over the radar images of the target area being approached generated by means of the radar system during the approach phase optical images of the same target area are superimposed at repeated intervals by means of an on-board data processing system. The combination images of the target area obtained by superimposing radar images and optical images are represented continuously. In addition, by means of the on-board data processing system optical images, possibly including colour images, of the target area to be monitored and stored in the data-processing system are at predefined intervals placed as background to radar images the dimensions of which have been adjusted in line with those of the optical images.
Description
Nuv-02-2000 12:01 From-BERESKIN ~ PARR CA 02322378 2000-os~l6 T-653 P.003/013 DEscR#PT~oN
MPTHOD FOR D#SPt-AYlNG RADAR tMAGES OF A TARGET REGION TO BE
MONITORED
Tl=CHNICAI. FtEt-D
The invention felates to a method for displaying radar images of a target region to be monitored, such as an airport, a seaport or a river har'bpr_ 1 o PRIOR ART
Such target regions are generally detected by a monitoring system carried py a platform, such as an airuaft, a ship or the like, the system ~mprising a radar system and a data-processing system tf a platform-borne radar system of this type detects, for exarr~ple. an airfeld, particularly a runway, or the entryway to a seaport or river harbor, backscatter signals of varying intensity are 4isplayed on the monitors) of the radar system.
A radar disp#ay of this type includes regions that are shown with different gray-scale values, and without notable structures. Only edges or prominent points of buildings IoGated in the target region, such as the tower of an airport, 2o seaport or river harbor, a harDOr entryway or a bmlding that is morntored from the airport or harbor regipn. have a distinctive appearance, or are reflected more intensely, in the radat image.
Nov-02-2000 12:01 From-BERESKIPI ~ PARR CA 02322378 2000-O8 X16 T-653 P.004/013 F-734 Even a high-resolution radar image does ncrt provide a continuous image of the target region that is comparable to a graphic, visual reproduction of the same region that has been dotected by the radar. Moreover, it is known that a representation obtained by radar is only a black-and-white depiction.
EP-A-362 974 describes an arrangement in which an electro~-optical sensor co-rotates synchronously with an antenna of a panorama radar, the antenna being mounted to a ship- The images obtained by the radar system and the Electro-optical sensor are superposed over one another, and the combination images of a target region obtained in this manner are displayed continuously.
to Also in JP 8-21876, an image recorded by an optical devict~ is superposed over a radar image obtained by a radar system.
The significant drawback of the above-described, known systems is that optical images that can be utilized by optical or electro-optical devices can only be recorded under correspondingly good visibility conditions, but not, for example, ~s under poor visibility conditions or in fog.
OBJECT ~F THE INVENTION
It is the cabject of the invention to improve a representation obtained by a platfom~-borne radar system in the phase of the appraaah toward a selected Zo target region insofar that persons such as pilots, captains, navigators, etc., who are observing or moniEoring the target region, can identify and interpret details about the target region much more easily.
According to the invention, this object is accomplished with a method for representing radar images of a target region to be monitored, the method zs possessing the features of the chat~cterizing portion of claim 1.
Advantageous modifications are the subject of the claims that era directly or indirectly dependent on claim 1.
In the method of the invention, with the aid of a platform-borne data..
processing system, radar images of the selected target region that have been Nov-02-2000 12:01 From-BERESKIN & PARK CA 02322378 2000-08~~16 T-653 P.005/013 generated by a platform-borne radar system, preferably a so-called forward-looking radar or a so-called sector imaging radar, are superposed with optical images of the same target region, the images being stored in the platform-borne data-processing system, in continuously-repeating time intervals, and the combination images comprising the obtained radar images and the superposed optical images are displayed continuously. The optical images, for example aerial images of the selected target region, that are to be superposed over the radar images are stared in the data-processing system.
Optical image refers hereinafter to a continuous image of the target region to to pe monitored that corresponds to a photographic image and is stored in the pfatfQrm-borne data-proGessln9 system. Continuous image refers to an image that is generated to display only the stationary structures in the image that are necessary for monitoring, such as buildings and ground facilities or docks, including the entire flying field or taxiway or the ent(re harbor.
is Llepending on the respective representation of the target region, however, image data originating from different scanning plans can also be layered beneath the radar image. The above-defined optical images are particularfy well-suited fvr a central, perspective view, for example from an aircraft cockpit or ship's bridge.
Aerial recordings or maps of the selected target region may also be suitable for a Zo plan view.
The stored, preferably also color, optical images can then be sublayered as the background far the radar imaga$, which are adapted in their dimension's to the optical images, in predetermined time intervals. ~epending on the viewing angle, the optical images may also need to be altered in terms of size and zs viewing angle.
Upon the availability of a combination image comprising a radar iimage and an optical image superposed over it, or an optical image layered beneath the Nov-02-2000 12:01 From-BERESKIN & PARK CA 02322378 2000-08016 T-653 P.006/013 radar image as the t~aGkground, the persons monitoring ttte selected target region detected by the radar, such as fixed, immobile targets, for example puildings flr other stationary Structures or the like, cars mare easily interpWt paints, surfaces, edges or the like that are clearly visible in the radar image.
In addition, with the meihpd of the invention, persons monitoring the selected target region cannot only immediately and easily identify the respective points appearing in the radaf image, such as the aforementioned edges of u~ildings, etc., with respect to their position, but they can also idsrltify the position precisely and reliably, thereby unambiguously associai~ng it with Bach l0 fixed, immobile target.
an advantageous modificatiAn of the method of the invention lies in storing color optical images in the data-processing system, thus keeping them ready for retrieval. if color optical images that are subEayered as the pacicground for the radar images, which - as already mentioned - are adapted in their dimensions as stipulated py the system, and can only be displayed in black and white, this further improves the interpretation pf the obtained combination images and an allocation an4 identification of prominent points, such as edges, transitions, etc., that are clearly distingmshed in the radar image.
According to a further advantageous embodiment of the method of the z o invention, all of the back-scattered points of stationary elements or targets in a scene that are likewise present in the optical image Gan ne gated out of each radar image preferably having an optical, continuous, color image that is layered Nw-02-2000 12:01 From-BERESKIN ~ PARR CA 02322378 2000-O8~o16 T-653 P.001/013 beneath it as the bacfcground- 1n the prpcess, only the back-scattered points of targets that are not present in the optical, image are retained in the sublayered optical image and dearly emphasized.
In this way, it is also possible, for example, to detect items and objects that were not present in the generation of the optical images, and therefore must be presented clearly antt with emphasis to pilots, captains, navigators arid, possibly, the persons performing the monnorWg.
In a particularly advantageous manner, combination imagES created according to the invention can ae used not only far correctly interpreting mobile 1 o targets, from small vehicles, transport vehicles, luggage carriers, launches, small ships. excursion boats and the like, up tA large vehicles, such as aircraft, strips.
etc., but also for precisely identifying the position or region where the moaile objects are located.
According to an advantageous mabification of the method of the invention, the back-scattering of Such mobile tatgets can fas emphasized in the sublayareb, preferapiy cc~Eor opncal image in that all back~5catterad points of stationary elements, targets or the like in a scene are gated out of the individual radar images.
Moreover, in accorpartce with a further embodiment of the invention, all 2 o targets, both fixs~i ana mobile, that have peen detected by the radar system - but are not, however, present in the optical image - can be dnplayep W such a way that a color is allocated to the targets that remain after all stationary targets of a Nw-02-2000 12.02 From-BERESKIN & PARR CA 02322378 2000-O8~o16 T-653 P.008/013 scene have been gated out, and are not pres4nt in the opkical image. !n an aavantageous modification of the invention, tree detected mobile targets can be allocated a different color from the targets appearing to be °parfced,° and thus s~ationary Furthermore, -parked" and mobile targets that are not present in different sections of the optiaa! image, but have been detected by the radar system, can also ber displayed in different colors by sector.
According to a further advantageous modification of the methpd Qf the invention, only oris specific section, preferably the central portion, of the selectea 1 o target region of the radar images superposed over the optical images is displayed with the highest-resolution mode. In contrast, the edge regions are only displayed with a rower-resolution mode, wn~ch simplifies ant reputes the outlay far data processWg.
If the selected target region is, far example, a runway of an airport, the 15 secnvn containing the runway, which gerterarly corresponds to the central portion of the selsctea target region, can be displayed with the highest-resolt~tiAn mode in the radar images superposed over the optical images of the runway. With respect to me strips of lard an either side of the runway, however, a display with a considerably rower-resotuti4n mode is generally sufficient.
2 o To save storage and ~mp~rtational capacity, an advantageoNs modification of the invention involves displaying the optical images at a considerably lower rspetit~on rate than that of the images generates ay the Nw-02-2000 12:02 From-BERESKIN ~ PARR CA 02322378 2000-08016 T-653 P.009/013 F-platform-oorne radar system. Conseceative optical images ha~ln9 a relatively-law repetition rate tan also be interpolatep with respect to the respectively previous ~ma9e.
According to the invention, the images that have been obtained and processed by the platform-borne monitoring system are displayed at a rEpetition rate in the order of magnitude of about 10 to lOfJ Hz. pue to the siugsishness of the human eye, at a repetition rate between 50 arid 100 H2, pilots, navigators and possibly the persons performing the monitoring patceive the display on the monitor of the radar system as a uniform, continuous sdrias of radar images.
z o The method of the invention therefore creates numerous options for considerably facilitating and improvirtg the intetpretation of a radar image, Plot only in terms of mapile objects, but objects or targets that are only present temporarily ("parked"), and for identifying such oi~jects or targets faster, more accurately and more reliadly.
MPTHOD FOR D#SPt-AYlNG RADAR tMAGES OF A TARGET REGION TO BE
MONITORED
Tl=CHNICAI. FtEt-D
The invention felates to a method for displaying radar images of a target region to be monitored, such as an airport, a seaport or a river har'bpr_ 1 o PRIOR ART
Such target regions are generally detected by a monitoring system carried py a platform, such as an airuaft, a ship or the like, the system ~mprising a radar system and a data-processing system tf a platform-borne radar system of this type detects, for exarr~ple. an airfeld, particularly a runway, or the entryway to a seaport or river harbor, backscatter signals of varying intensity are 4isplayed on the monitors) of the radar system.
A radar disp#ay of this type includes regions that are shown with different gray-scale values, and without notable structures. Only edges or prominent points of buildings IoGated in the target region, such as the tower of an airport, 2o seaport or river harbor, a harDOr entryway or a bmlding that is morntored from the airport or harbor regipn. have a distinctive appearance, or are reflected more intensely, in the radat image.
Nov-02-2000 12:01 From-BERESKIPI ~ PARR CA 02322378 2000-O8 X16 T-653 P.004/013 F-734 Even a high-resolution radar image does ncrt provide a continuous image of the target region that is comparable to a graphic, visual reproduction of the same region that has been dotected by the radar. Moreover, it is known that a representation obtained by radar is only a black-and-white depiction.
EP-A-362 974 describes an arrangement in which an electro~-optical sensor co-rotates synchronously with an antenna of a panorama radar, the antenna being mounted to a ship- The images obtained by the radar system and the Electro-optical sensor are superposed over one another, and the combination images of a target region obtained in this manner are displayed continuously.
to Also in JP 8-21876, an image recorded by an optical devict~ is superposed over a radar image obtained by a radar system.
The significant drawback of the above-described, known systems is that optical images that can be utilized by optical or electro-optical devices can only be recorded under correspondingly good visibility conditions, but not, for example, ~s under poor visibility conditions or in fog.
OBJECT ~F THE INVENTION
It is the cabject of the invention to improve a representation obtained by a platfom~-borne radar system in the phase of the appraaah toward a selected Zo target region insofar that persons such as pilots, captains, navigators, etc., who are observing or moniEoring the target region, can identify and interpret details about the target region much more easily.
According to the invention, this object is accomplished with a method for representing radar images of a target region to be monitored, the method zs possessing the features of the chat~cterizing portion of claim 1.
Advantageous modifications are the subject of the claims that era directly or indirectly dependent on claim 1.
In the method of the invention, with the aid of a platform-borne data..
processing system, radar images of the selected target region that have been Nov-02-2000 12:01 From-BERESKIN & PARK CA 02322378 2000-08~~16 T-653 P.005/013 generated by a platform-borne radar system, preferably a so-called forward-looking radar or a so-called sector imaging radar, are superposed with optical images of the same target region, the images being stored in the platform-borne data-processing system, in continuously-repeating time intervals, and the combination images comprising the obtained radar images and the superposed optical images are displayed continuously. The optical images, for example aerial images of the selected target region, that are to be superposed over the radar images are stared in the data-processing system.
Optical image refers hereinafter to a continuous image of the target region to to pe monitored that corresponds to a photographic image and is stored in the pfatfQrm-borne data-proGessln9 system. Continuous image refers to an image that is generated to display only the stationary structures in the image that are necessary for monitoring, such as buildings and ground facilities or docks, including the entire flying field or taxiway or the ent(re harbor.
is Llepending on the respective representation of the target region, however, image data originating from different scanning plans can also be layered beneath the radar image. The above-defined optical images are particularfy well-suited fvr a central, perspective view, for example from an aircraft cockpit or ship's bridge.
Aerial recordings or maps of the selected target region may also be suitable for a Zo plan view.
The stored, preferably also color, optical images can then be sublayered as the background far the radar imaga$, which are adapted in their dimension's to the optical images, in predetermined time intervals. ~epending on the viewing angle, the optical images may also need to be altered in terms of size and zs viewing angle.
Upon the availability of a combination image comprising a radar iimage and an optical image superposed over it, or an optical image layered beneath the Nov-02-2000 12:01 From-BERESKIN & PARK CA 02322378 2000-08016 T-653 P.006/013 radar image as the t~aGkground, the persons monitoring ttte selected target region detected by the radar, such as fixed, immobile targets, for example puildings flr other stationary Structures or the like, cars mare easily interpWt paints, surfaces, edges or the like that are clearly visible in the radar image.
In addition, with the meihpd of the invention, persons monitoring the selected target region cannot only immediately and easily identify the respective points appearing in the radaf image, such as the aforementioned edges of u~ildings, etc., with respect to their position, but they can also idsrltify the position precisely and reliably, thereby unambiguously associai~ng it with Bach l0 fixed, immobile target.
an advantageous modificatiAn of the method of the invention lies in storing color optical images in the data-processing system, thus keeping them ready for retrieval. if color optical images that are subEayered as the pacicground for the radar images, which - as already mentioned - are adapted in their dimensions as stipulated py the system, and can only be displayed in black and white, this further improves the interpretation pf the obtained combination images and an allocation an4 identification of prominent points, such as edges, transitions, etc., that are clearly distingmshed in the radar image.
According to a further advantageous embodiment of the method of the z o invention, all of the back-scattered points of stationary elements or targets in a scene that are likewise present in the optical image Gan ne gated out of each radar image preferably having an optical, continuous, color image that is layered Nw-02-2000 12:01 From-BERESKIN ~ PARR CA 02322378 2000-O8~o16 T-653 P.001/013 beneath it as the bacfcground- 1n the prpcess, only the back-scattered points of targets that are not present in the optical, image are retained in the sublayered optical image and dearly emphasized.
In this way, it is also possible, for example, to detect items and objects that were not present in the generation of the optical images, and therefore must be presented clearly antt with emphasis to pilots, captains, navigators arid, possibly, the persons performing the monnorWg.
In a particularly advantageous manner, combination imagES created according to the invention can ae used not only far correctly interpreting mobile 1 o targets, from small vehicles, transport vehicles, luggage carriers, launches, small ships. excursion boats and the like, up tA large vehicles, such as aircraft, strips.
etc., but also for precisely identifying the position or region where the moaile objects are located.
According to an advantageous mabification of the method of the invention, the back-scattering of Such mobile tatgets can fas emphasized in the sublayareb, preferapiy cc~Eor opncal image in that all back~5catterad points of stationary elements, targets or the like in a scene are gated out of the individual radar images.
Moreover, in accorpartce with a further embodiment of the invention, all 2 o targets, both fixs~i ana mobile, that have peen detected by the radar system - but are not, however, present in the optical image - can be dnplayep W such a way that a color is allocated to the targets that remain after all stationary targets of a Nw-02-2000 12.02 From-BERESKIN & PARR CA 02322378 2000-O8~o16 T-653 P.008/013 scene have been gated out, and are not pres4nt in the opkical image. !n an aavantageous modification of the invention, tree detected mobile targets can be allocated a different color from the targets appearing to be °parfced,° and thus s~ationary Furthermore, -parked" and mobile targets that are not present in different sections of the optiaa! image, but have been detected by the radar system, can also ber displayed in different colors by sector.
According to a further advantageous modification of the methpd Qf the invention, only oris specific section, preferably the central portion, of the selectea 1 o target region of the radar images superposed over the optical images is displayed with the highest-resolution mode. In contrast, the edge regions are only displayed with a rower-resolution mode, wn~ch simplifies ant reputes the outlay far data processWg.
If the selected target region is, far example, a runway of an airport, the 15 secnvn containing the runway, which gerterarly corresponds to the central portion of the selsctea target region, can be displayed with the highest-resolt~tiAn mode in the radar images superposed over the optical images of the runway. With respect to me strips of lard an either side of the runway, however, a display with a considerably rower-resotuti4n mode is generally sufficient.
2 o To save storage and ~mp~rtational capacity, an advantageoNs modification of the invention involves displaying the optical images at a considerably lower rspetit~on rate than that of the images generates ay the Nw-02-2000 12:02 From-BERESKIN ~ PARR CA 02322378 2000-08016 T-653 P.009/013 F-platform-oorne radar system. Conseceative optical images ha~ln9 a relatively-law repetition rate tan also be interpolatep with respect to the respectively previous ~ma9e.
According to the invention, the images that have been obtained and processed by the platform-borne monitoring system are displayed at a rEpetition rate in the order of magnitude of about 10 to lOfJ Hz. pue to the siugsishness of the human eye, at a repetition rate between 50 arid 100 H2, pilots, navigators and possibly the persons performing the monitoring patceive the display on the monitor of the radar system as a uniform, continuous sdrias of radar images.
z o The method of the invention therefore creates numerous options for considerably facilitating and improvirtg the intetpretation of a radar image, Plot only in terms of mapile objects, but objects or targets that are only present temporarily ("parked"), and for identifying such oi~jects or targets faster, more accurately and more reliadly.
Claims (16)
1. A method for displaying radar images that have been generated by a radar system, which is carried by a platform and detects a target region to be monitored, such as an airport, a seaport or a river harbor, in the approach phase with the use of a data-processing system, the images depicting the target region to be monitored as a representation from the viewing position of the approaching radar system, characterized in that, with the aid of the platform-borne data-processing system, optical images of the selected target region, the images being stored in this platform-borne data-processing system, are superposed in repeating time intervals aver the radar images of the same region, which are generated by the radar system during the approach phase, and combination images of this target region, which are obtained through the superposing of radar with optical images, are displayed continuously.
2. The method according to claim 1, characterized in that, in predetermined time intervals, the stored optical images of the target region to be monitored are sublayered as the background for radar images, which have been correspondingly adapted in their dimensions, with the aid of the platform-home data-processing system.
3. The method according to claim 1, characterized in that, in predetermined time intervals, the stored color optical images of the target region to be monitored are sublayered as the background for radar images, which have been correspondingly adapted in their dimensions, with the aid of the platform-borne data-processing system.
4. The method according to one of claims 1 through 3, characterized in that all back-scattered paints of stationary elements/targets of a scene that are likewise present in the optical images ate gated out of the radar images, and only the back-scattered points of targets that are not present in the optical images are displayed in the sublayered optical images.
5. The method according to one of claims 1 through 3, characterized in that all back-scattered points of stationary elements/targets of a scene are gated out of the radar images, and only the back-scattered points at mobile targets are displayed in the sublayered optical images.
6. The method according to claim 5, characterised in that targets that have been detected by the radar system, but are not present in the optical images, are displayed in color.
7. The method according to claim 5, characterized in that only mobile targets that have been detected by the radar system are displayed in color.
8. The method according to claim 5, characterized in that stationary and mobile targets that have been detected by the radar system, but are not present in the optical image, are displayed in different colors.
9. The method according to claim 5, characterized in that different mobile targets that have been detected by the radar system are displayed in different colors.
10. The method according to one of the foregoing claims, characterized in that a specific section of the selected target region of the radar images superposed over the optical images is displayed with the highest-resolution made.
11. The method according to one of the foregoing claims, characterized in that only the central portion of the radar images superposed over the optical images is displayed with the highest-resolution mode. and the edge regions are displayed with a lower-resolution mode.
12. The method according to one of the foregoing claims, characterized in that the optical images are displayed at a lower repetition rate than the images obtained with the radar system.
13. The method according to claim 12, characterized in that images that have been obtained by the platform-borne radar system and processed with the likewise platform-borne data-processing system are displayed at a repetition rate in the order of magnitude of about 10 to 100 Hz.
14. The method according to claim 12, characterized in that a plurality of consecutive optical images is interpolated at a low repetition rate.
15. The method according to claim 1, characterized in that the radar system is formed by a so-called forward-looking radar.
16. The method according to claim 1, characterized in that the radar system is formed by a so-called sector-imaging radar.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19806590.6 | 1998-02-17 | ||
| DE19806590A DE19806590A1 (en) | 1998-02-17 | 1998-02-17 | Method for monitoring a controlled target area in the approach phase |
| PCT/EP1999/001027 WO1999042854A1 (en) | 1998-02-17 | 1999-02-17 | Method for representing radar images of a target area to be monitored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2322378A1 true CA2322378A1 (en) | 1999-08-26 |
Family
ID=7858047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002322378A Abandoned CA2322378A1 (en) | 1998-02-17 | 1999-02-17 | Method for displaying radar images of a target region to be monitored |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1057045A1 (en) |
| CA (1) | CA2322378A1 (en) |
| DE (1) | DE19806590A1 (en) |
| WO (1) | WO1999042854A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7619626B2 (en) * | 2003-03-01 | 2009-11-17 | The Boeing Company | Mapping images from one or more sources into an image for display |
| US7925391B2 (en) | 2005-06-02 | 2011-04-12 | The Boeing Company | Systems and methods for remote display of an enhanced image |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5179385A (en) * | 1992-01-02 | 1993-01-12 | International Marine Industries, Inc. | Visual navigation aid with point of interest feature |
| US5654890A (en) * | 1994-05-31 | 1997-08-05 | Lockheed Martin | High resolution autonomous precision approach and landing system |
| SG66213A1 (en) * | 1995-01-31 | 1999-07-20 | Mitsubishi Electric Corp | Display apparatus for flight control |
-
1998
- 1998-02-17 DE DE19806590A patent/DE19806590A1/en not_active Withdrawn
-
1999
- 1999-02-17 EP EP99910230A patent/EP1057045A1/en not_active Withdrawn
- 1999-02-17 CA CA002322378A patent/CA2322378A1/en not_active Abandoned
- 1999-02-17 WO PCT/EP1999/001027 patent/WO1999042854A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999042854A1 (en) | 1999-08-26 |
| EP1057045A1 (en) | 2000-12-06 |
| DE19806590A1 (en) | 1999-09-02 |
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