Design and Construction of Wideband Vna Ground-Based Radar System With Real and Synthetic Aperture Measurement Capabilities

Abstract

Abstract-This paper presents the design and construction of an advanced wideband, automated radar system. With the aid of Vector Network Analyzer (VNA), a wideband ground-based system can be achieved with proper Radio Frequency (RF) circuitry integration. The RF circuitry is designed specifically to configure the proposed system to be able to measure full linear polarimetric scattering matrices of the area of interest. Besides, quasi-monostatic horn antenna configuration is chosen to transmit and receive the electromagnetic wave. The goal of this paper is to demonstrate the real and synthetic aperture capabilities of the system in outdoor measurement with the microwave frequency range from 2 to 7 GHz. Coupled with the integration of the Automatic Antenna Positioning System (AAPS), the constructed system is able to perform real and synthetic aperture radar measurements. A series of measurement was done on real aperture radar measurement using point target for validity purpose. The overall results show good agreement with the theoretical values. On the other hand, the proposed system is capable to performing a radar imaging measurement. A preliminary analysis is done on a 45 days old rice field. A three dimensional (3-D) radar image has also been constructed successfully with Range Migration Technique (RMA). The result shows good potential of the system in constructing radar imaging of natural target.

Gpu-Based ω-K Tomographic Processing by 1d Non-Uniform FFTS

“…This is of interest in a number of applications, including ground-based imaging of natural targets [45].…”

An investigation of the performances of polarimetric target decompositions using GB-SAR imaging

“…This has given rise to development of various polarimetric SAR (PolSAR) systems and methods which have proven the usefulness of PolSAR in various applications especially in image classification and contrast enhancement. Among these, for GB-SAR specific applications, the reader is referred to (Pipia 2009;Pipia et al 2013;Iglesias et al 2015a;Iglesias et al 2015b;Baffelli et al 2018;Brown et al 2003;Lim and Koo 2008;Penner and Long 2017;Zhou 2003;Zhou 2004;Minh et al 2014;Kang et al 2009;Xing et al 2013). Nevertheless, it is still an experimental technique in quantitative retrieval of target parameters.…”

Detection and Estimation of Multi-Component Polynomial Phase Signals by Constructing Regular Cross Terms

“…For example, in synthetic aperture radar (SAR) [1][2][3], the relative radar-target motion can cause a time-varying phase in the transmitted signal. The continuous variation of the distance between radar and target leads the instantaneous phase shift to a continuous function of time.…”