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In miniaturized radars where power, real estate, speed and low cost are tight constraints and Doppler tolerance is not a major concern biphase codes are popular and FIR filter is used for digital pulse compression (DPC) implementation to achieve required range resolution. Disadvantage of low peak to sidelobe ratio (PSR) of biphase codes can be overcome by linear programming for either single stage...
In this paper, we propose a 3D image analysis method for landmine detection from vehicle mounted Ground Penetrating Radar (GPR) data, using adaptive filtering technique and image segmentation algorithm. Conventional methods for landmine detection seldom exploit the 3D information (C-Scan) and the discrimination algorithms used are computationally expensive. In our method, we have used 3D adaptive...
GROUND-penetrating radar (GPR) is a mature remote sensing technique employed by engineers and scientists to obtain information from subsurface structures. It is often advantageous to estimate the ground surface topography from radar returns. In this letter, we propose a method to solve the diffraction problem and improve the accuracy of surface topography. A modified version of Kirchhoff's migration...
Ground-penetrating radar (GPR) is a remote sensing technique used to obtain information on subsurface features from data collected over the surface. The process of collecting data may be viewed as mapping from the object space to an image space. Since most GPRs use broad beamwidth antennas, the energy reflected from a buried structure is recorded over a large lateral aperture in the image space. A...
Advent of Matrix Theory has greatly aided and simplified the analysis for variety of signal processing algorithms. It has been proven that matrix notation is convenient for representation of signals and to perform operations on them. Many problems such as signal modeling, Wiener filtering and spectrum estimation require finding the solution or solutions to a set of linear equations. Some of the common...
FPGA based realization of a highly configurable low-power robust signal processor for a portable ground-based multiple scan ratesurveillance radar is presented. Portability feature of the radar demands a compact radar system which should be able to detect low flying aerial targets against clutter/interference background. All requirements could be met in a FPGA-based design of a multi-channel signal...
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