A Circular Synthetic Aperture Radar for on-the-Ground Object Detection

Abstract

Abstract-Detecting an on-the-ground object is a subject of interest for use in some applications. Foreign Object Detection (FOD), which is an important issue in aviation safety, is a possible application. In this way, radar imaging, has several inherent advantages over other on-the-ground object detection techniques. This paper will introduce a ground-based Circular Synthetic Aperture Radar, which detects and localizes various objects, based on their reflection properties of microwaves. Here, wideband Linear Frequency Modulated (LFM) chirp pulses are employed for the transmission and reception of reflection pulses, both to and from the object under test. Once the pulses are received by the radar, a processing algorithm (proposed later in this paper) is executed to confirm detection. In order to verify the validity of the model, a prototype was developed and a series of field experiments was carried out. The results show that the proposed system has the ability to detect and localize on-the-ground objects with dimensions as small as 2 cm high and 1 cm diameter, located several metres away. Furthermore, the resolution of the system was analysed and results indicate that the system is capable of distinguishing multiple objects in close proximity to each other, which therefore, makes it suitable for FOD applications by some small modifications.

Foreign Object Detection Based on Circular Bistatic Synthetic Aperture Radar

“…A frequency-range profile for the system can be achieved during the calibration stage. more details about it can be found in [12].…”

“…These models suffer from practical limitations for ground-based applications. This limitation can be solved by the model presented in [12], where the radar movement exhibit a half-circular trajectory which its centre is out of the scanning area The ability of this system is shown by detecting objects.…”

An Efficient Sar Jammer With Direct Radio Frequency Processing (Drfp)

“…With a history as long as half a century, Synthetic Aperture Radar (SAR) has become a very effective tool for city planning [1], environmental monitoring [2], Foreign Object Detection (FOD) [3], and man-made target detection and recognition [4][5][6]. Due to its outstanding imaging performance, SAR has been widely utilized in warfare surveillance.…”

Multi-Feature Based Detection of Landmines Using Ground Penetrating Radar

“…Radar has been successfully employed for detection of various entities such as breast cancers [7][8][9], hidden objects or humans [10][11][12][13][14][15][16][17][18][19], moving targets [20][21][22] and their speed [23,24] and speech acquisition [25]. Among various types of radars developed so far, ground penetrating radars (GPRs) have attracted many researchers attention.…”