Sung-Ho Hong

Jan M H Hendrickx12
Remke L Van Dam4
12Jan M H Hendrickx
4Remke L Van Dam
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The complex dielectric constant of the soil surrounding a landmine and its contrast with the dielectric constant of the landmine are critical to the effectiveness of ground penetrating radar (GPR) for landmine detection. These parameters affect the velocity and attenuation of the radar signal as well as the strength of the reflection from the mine. The(More)
Thermal sensors hold much promise for the detection of non-metallic landmines. However, the prediction of their thermal signatures depends on a large number of factors. In this paper, an analytical solution for temperature propagation through homogeneous and layered soils is presented to predict surface temperatures as a function of soil heat flux(More)
Land mines are a major problem in many areas of the world. In spite of the fact that many different types of land mines sensors have been developed, the detection of non-metallic land mines remains very difficult. Most landmine detection sensors are affected by soil properties such as water content, temperature, electrical conductivity and dielectric(More)
The contrast in relative dielectric constant between landmines and the surrounding soil is one of the most important elements for radar detection purposes. For most geologic materials the relative dielectric constant lies within the range of 3-30, with dry sand at the lower end of this range at about 3-5. Nonmetallic landmines have a dielectric constant(More)
Remotely sensed images of the Earth's surface provide information about the spatial distribution of evapotranspiration. Since the spatial resolution of evapotranspiration predictions depends on the sensor type; scaling transfer between images of different scales needs to be investigated. The objectives of this study are first to validate the consistency of(More)
Soil surface temperatures not only exhibit daily and annual cycles but also are very variable in space and time. Without knowledge of the spatial and temporal variability of soil surface temperatures, it will be difficult to determine what times of day are most suitable for mine detection using Thermal Infra Red (TIR) technology. In this study we monitor(More)
Thermal signatures of buried land mines depend on a complex combination of environmental conditions, soil properties, and properties and burial depth of the land mine. Due to the complex nature of the problem most modeling and experimental efforts to understand thermal signatures of land mines have focused on the effects of one or a few variables. Of these(More)
10 11 Remotely sensed imagery of the Earth's surface via satellite sensors provides information 12 to estimate the spatial distribution of evapotranspiration (ET). The spatial resolution of 13 ET predictions depends on the sensor type and varies from the 30 – 60 m Landsat scale to 14 the 250 – 1000 m MODIS scale. Therefore, for an accurate characterization(More)