Constant false-alarm rate algorithm based on test cell information

Cao, Tiejun

doi:10.1049/iet-rsn:20070133

Cited by 39 publications

(31 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, wind turbines are problematic since the blade tip may have a high speed, similar to the speed of a light aircraft or helicopter. (3) Constant false alarm rate (CFAR) [ 38 ]: CFAR is designed to maintain radar performance in areas where there are clutter. However, if a desired target within the area has a weaker return than the clutter, or if it stays within the area for several antenna sweeps, the clutter threshold will eliminate the genuine target as well as the clutter.…”

Section: Background and Motivationmentioning

confidence: 99%

Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems

Wang

2013

The Scientific World Journal

View full text Add to dashboard Cite

It is well recognized that a wind turbine has a large radar cross-section (RCS) and, due to the movement of the blades, the wind turbine will generate a Doppler frequency shift. This scattering behavior may cause severe interferences on existing radar systems including static ground-based radars and spaceborne or airborne radars. To resolve this problem, efficient techniques or algorithms should be developed to mitigate the effects of wind farms on radars. Herein, one transponder-based mitigation technique is presented. The transponder is not a new concept, which has been proposed for calibrating high-resolution imaging radars. It modulates the radar signal in a manner that the retransmitted signals can be separated from the scene echoes. As wind farms often occupy only a small area, mitigation processing in the whole radar operation will be redundant and cost inefficient. Hence, this paper uses a transponder to determine whether the radar is impacted by the wind farms. If so, the effects of wind farms are then mitigated with subsequent Kalman filtering or plot target extraction algorithms. Taking airborne synthetic aperture radar (SAR) and pulse Doppler radar as the examples, this paper provides the corresponding system configuration and processing algorithms. The effectiveness of the mitigation technique is validated by numerical simulation results.

show abstract

Section: Background and Motivationmentioning

confidence: 99%

Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems

Wang

2013

The Scientific World Journal

View full text Add to dashboard Cite

show abstract

“…So the final parameters set of IS-CFAR at the desired P f,D ¼1 Â 10 À 6 is: [2N, N For performance comparison, set the value of parameter a in S-CFAR and GS-CFAR equal to a I . According to parameter design procedures in [20,24], the parameters set of S-CFAR at the desired P f,D is: [2N, N T , a, b 0 Fig. 5 shows the detection performance of CFAR detectors in a homogeneous environment.…”

Section: Is-cfar Parameters Selectionmentioning

confidence: 99%

“…in [20,21]. S-CFAR selects different reference cells to compute the detection threshold by using the magnitude of the test cell.…”

Section: Introductionmentioning

confidence: 99%

Improved switching CFAR detector for non-homogeneous environments

Zhang

Sheng

2013

Signal Processing

View full text Add to dashboard Cite

“…The various CFAR detectors which are adopted to environments were proposed [6][7][8][9][10]. Among these adaptive detectors, the switching OS (SOS) CFAR detector was proposed [11].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of an Environmental Adaptive CFAR Detector

Hong

Han

2014

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The constant false alarm rate (CFAR) is a detection algorithm that is generally used in radar or sonar systems, but its performance depends greatly on the environment. This means that the detection performance cannot be satisfied with only a single CFAR detector. This paper evaluates mathematically a proposed environmental adaptive (EA) CFAR detector. The proposed CFAR detector selects an optimal CFAR detector depending on the environment. Computer simulations validate the mathematical analysis and robustness of the detector in homogeneous and nonhomogeneous backgrounds.

show abstract

Constant false-alarm rate algorithm based on test cell information

Cited by 39 publications

References 8 publications

Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems

Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems

Improved switching CFAR detector for non-homogeneous environments

Performance Analysis of an Environmental Adaptive CFAR Detector

Contact Info

Product

Resources

About