The Experts below are selected from a list of 38211 Experts worldwide ranked by ideXlab platform
A. P. Annan - One of the best experts on this subject based on the ideXlab platform.
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Measuring Soil Water Content with Ground Penetrating Radar
Vadose Zone Journal, 2013Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required.We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
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measuring soil water content with Ground Penetrating Radar a review
Vadose Zone Journal, 2003Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required. We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
J A Huisman - One of the best experts on this subject based on the ideXlab platform.
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Measuring Soil Water Content with Ground Penetrating Radar
Vadose Zone Journal, 2013Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required.We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
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measuring soil water content with Ground Penetrating Radar a review
Vadose Zone Journal, 2003Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required. We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
John D. Redman - One of the best experts on this subject based on the ideXlab platform.
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Measuring Soil Water Content with Ground Penetrating Radar
Vadose Zone Journal, 2013Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required.We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
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measuring soil water content with Ground Penetrating Radar a review
Vadose Zone Journal, 2003Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required. We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
S.s. Hubbard - One of the best experts on this subject based on the ideXlab platform.
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Measuring Soil Water Content with Ground Penetrating Radar
Vadose Zone Journal, 2013Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required.We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
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measuring soil water content with Ground Penetrating Radar a review
Vadose Zone Journal, 2003Co-Authors: J A Huisman, S.s. Hubbard, John D. Redman, A. P. AnnanAbstract:We present a comprehensive review of methods to measure soil water content with Ground Penetrating Radar (GPR). We distinguish four methodologies: soil water content determined from reflected wave velocity, soil water content determined from Ground wave velocity, soil water content determined from transmitted wave velocity between boreholes, and soil water content determined from the surface reflection coefficient. For each of these four methodologies, we discuss the basic principles, illustrate the quality of the data with field examples, discuss the possibilities and limitations, and identify areas where future research is required. We hope that this review will further stimulate the community to consider Ground Penetrating Radar as one of the possible tools to measure soil water content.
Zhou Zhi-min - One of the best experts on this subject based on the ideXlab platform.
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Cancellation of the Direct Coupling in a SFCW Ground Penetrating Radar
Radar Science and Technology, 2010Co-Authors: Zhou Zhi-minAbstract:Stepped frequency continuous wave is usually transmitted in Ground Penetrating Radar(GPR).One of the major problems encountered is the large leakage from the transmit signal to the receive antenna,which decreases the receiver sensitivity,saturates the receiver,and even damages the receiver.To cancel the leakage signal of SFCW Ground Penetrating Radar,the transmit and receive antennas are properly placed to improve the T/R isolation,assuring that the receiver is not jammed.Then a digital intermediate frequency coupling cancellation scheme is adopted.The engineering application algorithm and the restrictions of the method are given.SFCW GPR images have been presented to demonstrate the effectiveness of the leakage signal suppression method.The coupling cancellation method works well with an Ground Penetrating Radar.
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Digital Signal Processor of a SFCW Ground Penetrating Radar
Radar Science and Technology, 2010Co-Authors: Zhou Zhi-minAbstract:The digital signal processor(DSP) of a stepped frequency continuous wave Ground Penetrating Radar is implemented.The DSP board consists of multiple TS201 chips with independent memories and local buses.The link ports are used for high speed data transfer among different boards and chips.A signal processing flow chart is designed and implemented based on the DSP board.The flow chart consists of pre-imaging data processing,synthetic aperture imaging,clutter suppression,target detection and tracking.Both Radar images and target detection results can be provided.The digital signal processor worked well in a Ground Penetrating Radar.
