Beamforming Array for Detecting Buried Land Mines
نویسندگان
چکیده
A beamforming array is investigated for use in a radar system that is part of a hybrid acoustic/electromagnetic technique for detecting land mines. The radar is used to measure the surface displacement of the earth due to acoustic waves in the earth. The beamforming array is used to obtain small spatial resolution for the measurement of the displacement while allowing an adequate stando distance for the radar. The tradeo s between the resolution and the sidelobes of the array are investigated. Finite-di erence time-domain and experimental models have been implemented to examine the feasibility of the beamforming array.
منابع مشابه
Near Field Beamforming Array for Detecting Elastic Waves in the Earth
A near eld beamforming array is investigated for use in a radar system that is part of a hybrid elastic electromagnetic technique for detecting land mines The radar is used to measure the displacement of the surface of the earth and land mines due to elastic waves in the earth The beamforming array is used to obtain a su ciently small spatial resolution for the measurement of the displacement w...
متن کاملData Fusion for Vehicle-borne Mine Detection
This paper introduces a statisticallywell-founded evaluation of the fusion of dual-band infrared and tri-band visual imagery for detecting buried land mines using real-data. A unified Bayesian framework is presented for representing and inferring from data captured by multiple sensors of scenes that may contain buried land mines.
متن کاملInvestigating the Viability of MEMS Vapor Sensors for Detecting Land Mines
This paper reports the design specification and process for constructing a gas identification instrument using MEMS technology for the purpose of detecting buried land mines. The aim is to design an instrument to detect and identify gases that leak from buried land mines using an array of sensors and a pattern recognition/signature identification system. This report focuses on the design of the...
متن کاملOptimal Experiments with Seismic Sensors for the Localization of Buried Landmines
In this paper, we consider the problem of detecting and locating buried land mines and subsurface objects by using seismic waves. We demonstrate an adaptive seismic system that maneuvers an array of receivers, according to an optimal positioning algorithm based on the theory of optimal experiments, to minimize the number of distinct measurements to localize the mine. The adaptive localization a...
متن کاملPhased array ultrasonic imaging using an improved beamforming based total focusing method for non destructive test
One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...
متن کامل