Foreign Object Debris Detection Performance Improvement Evaluation of a 90 GHz Band Millimeter-Wave Radar System in Airport Environments, 21

1. 不同材质和角度的power angle特征不同，记录并对应即可
   1. The reflection power of the typical 9 FODs is measured at various angles. The detection probabilities are then calculated using the measured results.
2. 1024 vs 4—6 times
   1. 90 GHz band millimeterwave radar system, can integrate coherent signals up to 1,024 times and non-coherent signals up to 1,024 times.
   2. The previously developed W-band millimeter-wave radar system’s coherent and non-coherent signal integration rates are fixed at 4 and 16 times [3].
3. At 307 m, the detection probabilities of 7 types of the FOD, including small FOD such as a 3 cm piece of asphalt and a 2 cm length M8 bolt, are 100%.

1. Small Foreign Object Debris Detection for Millimeter-Wave Radar Based on Power Spectrum Features, sensors, 20
   1. traditional learning method
   2. cluster on spectral domain
   3. FOD can be considered a kind of classification that distinguishes the measured signal as either containing FOD targets or only corresponding to ground clutter.

Airport Runway Foreign Object Debris Detection System Based on Arc-Scanning SAR Technology, IEEE Transactions on Geoscience and Remote Sensing, 22

胡淼鑫

1. 列举了国内高校

2. arc-scanning synthetic aperture radar (AS-SAR) 抗雨 vs AS-SAR and arc-scanning real aperture radar (AS-RAR)

3. AS-SAR =》 image ⇒ simple image processing for detection.

   1. denoising: 乘法噪声
   2. detection: 靠局部窗口的统计特征区分该窗口内是否有异物。
   3. no classification.
   4. material is not discussed.

4. detected on the runway more than 250 m away

   

Left: zoomed region in the box; Right: results;