A focusing algorithm for tree-penetrating radar imaging: An experimental study and concept evaluation

Abstract

In this work, we have presenteda focusing algorithm for tree-penetrating radar applications. The details of our imaging and focusing algorithm to detect cavities inside a treebody were given. First, the algorithm has been tested with the simulation data that were generated by the help of perfect point scatterers. Then, the algorithm was applied to the measurement data that have been collected from a laboratory set-up. The resultant radargram of the measured data has demonstrated the effectiveness and the success of the proposed algorithm.

An Experimental Study and Concept Evaluation on Tree-Interior Imaging Radar Using Sinusoidal Template-Based Focusing Algorithm

“…On the other hand, ultrasonic pulses in wood are usually strongly attenuated; therefore, this method requires high signal sensitivity and dynamic range while acquiring and processing the raw data [10,11]. Recently, using obstaclepenetrating radar technologies to detect and image cavities within a tree-body has been increasingly gaining attention thanks to recent advances in radar hardware and radar signal processing techniques [12][13][14][15]. It is eminent by the electromagnetic (EM) community that microwave imaging techniques have the advantages of providing high resolution features and requiring relatively smaller amount of power to penetrate such obstacles.…”