Page 1. Radar and Wind Turbines: A Guide to Acceptance Criteria ... The user can de-fine the shap... more Page 1. Radar and Wind Turbines: A Guide to Acceptance Criteria ... The user can de-fine the shape of the profile in a flat earth geometry and dif-ferent BRAs per PSR are also possible. Besides, the strictness of the test can be set. ...
Doppler polarimetry in a surveillance radar for the maritime surface picture is considered. This ... more Doppler polarimetry in a surveillance radar for the maritime surface picture is considered. This radar must be able to detect low-RCS targets in littoral environments. Measurements on such targets have been conducted with a coherent polarimetric measurement radar in March 2001 and preliminary results from that campaign are presented. The system provides estimates of the scattering matrix per range-Doppler bin. Several physical quantities that can be exploited to discriminate target echoes from sea clutter responses are discussed and an impression is given on their effectiveness.
In this paper, measures of performance (MOP's) are discussed with which the effectiveness of sens... more In this paper, measures of performance (MOP's) are discussed with which the effectiveness of sensor fusion can be assessed. A series of objective measures are outlined to characterize effectiveness of the detection, tracking and classification processes. The applicability of several MOP's is demonstrated for an example in which radar and camera data are combined, showing the benefit of sensor fusion.
This paper presents the progress of a collaborative effort between Canada and The Netherlands in ... more This paper presents the progress of a collaborative effort between Canada and The Netherlands in analyzing multi-sensor data fusion systems, e.g. for potential application to their respective frigates. In view of the overlapping interest in studying and comparing applicability and performance and advanced state-of-the-art Multi-Sensor Data FUsion (MSDF) techniques, the two research establishments involved have decided to join their efforts in the development of MSDF testbeds. This resulted in the so-called Joint-FACET, a highly modular and flexible series of applications that is capable of processing both real and synthetic input data. Joint-FACET allows the user to create and edit test scenarios with multiple ships, sensor and targets, generate realistic sensor outputs, and to process these outputs with a variety of MSDF algorithms. These MSDF algorithms can also be tested using typical experimental data collected during live military exercises.
A combination of algorithms has been developed for the detection, tracking, and classification of... more A combination of algorithms has been developed for the detection, tracking, and classification of targets at sea. In a flexible software setup, different methods of preprocessing and detection can be chosen for the processing of infrared and visible-light images. Two projects, in which the software is used, are discussed. In the SURFER project, the algorithms are used for the detection and classification of small targets, e.g., swimmers, dinghies, speedboats, and floating mines. Different detection methods are applied to recorded data. We will present a method to describe the background by fitting continuous functions to the data, and show that this provides a better separation between objects and clutter. The detection of targets using electro- optical systems is one part of this project, in which also algorithms for fusion of electro-optical data with radar data are being developed. In the second project, a simple infrared image-seeker has been built that is used to test the effectiveness of infrared decoys launched from a ship. In a more complicated image seeker algorithm, features such as contrast and size and characterization of trajectory are used to differentiate between ship, infrared decoys and false alarms resulting from clutter. In this paper, results for the detection of small targets in a sea background are shown for a number of detection methods. Further, a description is given of the simulator imaging seeker, and some results of the imaging seeker software applied to simulated and recorded data will be shown.
Area surveillance for guarding and intruder detection with a combined camera radar sensor is cons... more Area surveillance for guarding and intruder detection with a combined camera radar sensor is considered. This specific sensor combination is attractive since complementary information is provided by the respective elements. Thus, a more complete description of objects of interest can be obtained. Several strategies to fuse the data are discussed. Results obtained with live experiments are presented. When compared to camera only, a significant reduction of the number of false tracks is achieved.
Fusion of radar and EO-sensors is investigated for the purpose of surveillance in littoral waters... more Fusion of radar and EO-sensors is investigated for the purpose of surveillance in littoral waters is. All sensors are considered to be co-located with respect to the distance, typically 1 to 10 km, of the area under surveillance. The sensor suite is a coherent polarimetric radar in combination with a set of camera's sensitive to visible light, near infrared, mid infrared and far infrared. Although co-located, the sensors are dissimilar and not necessarily synchronized. A critical aspect for beneficial fusion in this application is correct association of information from these sensors. Various architectures are considered and it will be argued that a fuse while track algorithm is the most suitable algorithm in this case. Discussed is how such an algorithm is designed and applied. To improve association reliability also non-kinematic features of both sensor types are considered. Investigated in particular is, which features from contacts measured with the polarimetric radar and the EO-sensors are correlated. These features and their correlations are incorporated in the tracking process. Preliminary results are shown.
Fusion of radar and EO-sensors for the purpose of surveillance is investigated. All sensors are c... more Fusion of radar and EO-sensors for the purpose of surveillance is investigated. All sensors are considered to be co-located with respect to the distance of the area under surveillance. More specifically, the applicability for such multi-sensor systems is examined for surveillance in littoral waters. The sensor suite is a coherent polarimetric radar in combination with a set of camera's sensitive in visible light, near infrared, mid infrared and far infrared. A so-called fuse while track algorithm is the best candidate for these dissimilar colocated and not necessarily synchronized sensors.
Page 1. Radar and Wind Turbines: A Guide to Acceptance Criteria ... The user can de-fine the shap... more Page 1. Radar and Wind Turbines: A Guide to Acceptance Criteria ... The user can de-fine the shape of the profile in a flat earth geometry and dif-ferent BRAs per PSR are also possible. Besides, the strictness of the test can be set. ...
Doppler polarimetry in a surveillance radar for the maritime surface picture is considered. This ... more Doppler polarimetry in a surveillance radar for the maritime surface picture is considered. This radar must be able to detect low-RCS targets in littoral environments. Measurements on such targets have been conducted with a coherent polarimetric measurement radar in March 2001 and preliminary results from that campaign are presented. The system provides estimates of the scattering matrix per range-Doppler bin. Several physical quantities that can be exploited to discriminate target echoes from sea clutter responses are discussed and an impression is given on their effectiveness.
In this paper, measures of performance (MOP's) are discussed with which the effectiveness of sens... more In this paper, measures of performance (MOP's) are discussed with which the effectiveness of sensor fusion can be assessed. A series of objective measures are outlined to characterize effectiveness of the detection, tracking and classification processes. The applicability of several MOP's is demonstrated for an example in which radar and camera data are combined, showing the benefit of sensor fusion.
This paper presents the progress of a collaborative effort between Canada and The Netherlands in ... more This paper presents the progress of a collaborative effort between Canada and The Netherlands in analyzing multi-sensor data fusion systems, e.g. for potential application to their respective frigates. In view of the overlapping interest in studying and comparing applicability and performance and advanced state-of-the-art Multi-Sensor Data FUsion (MSDF) techniques, the two research establishments involved have decided to join their efforts in the development of MSDF testbeds. This resulted in the so-called Joint-FACET, a highly modular and flexible series of applications that is capable of processing both real and synthetic input data. Joint-FACET allows the user to create and edit test scenarios with multiple ships, sensor and targets, generate realistic sensor outputs, and to process these outputs with a variety of MSDF algorithms. These MSDF algorithms can also be tested using typical experimental data collected during live military exercises.
A combination of algorithms has been developed for the detection, tracking, and classification of... more A combination of algorithms has been developed for the detection, tracking, and classification of targets at sea. In a flexible software setup, different methods of preprocessing and detection can be chosen for the processing of infrared and visible-light images. Two projects, in which the software is used, are discussed. In the SURFER project, the algorithms are used for the detection and classification of small targets, e.g., swimmers, dinghies, speedboats, and floating mines. Different detection methods are applied to recorded data. We will present a method to describe the background by fitting continuous functions to the data, and show that this provides a better separation between objects and clutter. The detection of targets using electro- optical systems is one part of this project, in which also algorithms for fusion of electro-optical data with radar data are being developed. In the second project, a simple infrared image-seeker has been built that is used to test the effectiveness of infrared decoys launched from a ship. In a more complicated image seeker algorithm, features such as contrast and size and characterization of trajectory are used to differentiate between ship, infrared decoys and false alarms resulting from clutter. In this paper, results for the detection of small targets in a sea background are shown for a number of detection methods. Further, a description is given of the simulator imaging seeker, and some results of the imaging seeker software applied to simulated and recorded data will be shown.
Area surveillance for guarding and intruder detection with a combined camera radar sensor is cons... more Area surveillance for guarding and intruder detection with a combined camera radar sensor is considered. This specific sensor combination is attractive since complementary information is provided by the respective elements. Thus, a more complete description of objects of interest can be obtained. Several strategies to fuse the data are discussed. Results obtained with live experiments are presented. When compared to camera only, a significant reduction of the number of false tracks is achieved.
Fusion of radar and EO-sensors is investigated for the purpose of surveillance in littoral waters... more Fusion of radar and EO-sensors is investigated for the purpose of surveillance in littoral waters is. All sensors are considered to be co-located with respect to the distance, typically 1 to 10 km, of the area under surveillance. The sensor suite is a coherent polarimetric radar in combination with a set of camera's sensitive to visible light, near infrared, mid infrared and far infrared. Although co-located, the sensors are dissimilar and not necessarily synchronized. A critical aspect for beneficial fusion in this application is correct association of information from these sensors. Various architectures are considered and it will be argued that a fuse while track algorithm is the most suitable algorithm in this case. Discussed is how such an algorithm is designed and applied. To improve association reliability also non-kinematic features of both sensor types are considered. Investigated in particular is, which features from contacts measured with the polarimetric radar and the EO-sensors are correlated. These features and their correlations are incorporated in the tracking process. Preliminary results are shown.
Fusion of radar and EO-sensors for the purpose of surveillance is investigated. All sensors are c... more Fusion of radar and EO-sensors for the purpose of surveillance is investigated. All sensors are considered to be co-located with respect to the distance of the area under surveillance. More specifically, the applicability for such multi-sensor systems is examined for surveillance in littoral waters. The sensor suite is a coherent polarimetric radar in combination with a set of camera's sensitive in visible light, near infrared, mid infrared and far infrared. A so-called fuse while track algorithm is the best candidate for these dissimilar colocated and not necessarily synchronized sensors.
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