Title :
Ground penetrating radar utilizing compressive sampling and OFDM techniques
Author :
Metwally, Mohamed ; L´Esperance, Nicholai ; Tian Xia
Author_Institution :
Sch. of Eng., Univ. of Vermont, Burlington, VT, USA
Abstract :
In this paper, we propose a new GPR design method by combining OFDM (Orthogonal Frequency Division Multiplexing) and compressive sampling (CS) techniques. Comparing with traditional SFCW (step frequency continuous wave) radar, OFDM allows transmitting/receiving multiple frequency tones simultaneously to reduce frequency sweeping time. Compressive sampling reduces the number of frequency tones required to further improve GPR operating efficiency. To show the design effectiveness, SFCW GPR and OFDM-CS continuous wave GPR are both simulated in conjunction with FDTD (finite difference time domain) numerical modeling to characterize a concrete slab model.
Keywords :
OFDM modulation; compressed sensing; finite difference time-domain analysis; ground penetrating radar; radar signal processing; slabs; FDTD numerical modeling; GPR design method; GPR operating efficiency improvement; OFDM technique; compressive sampling technique; concrete slab model; finite difference time domain numerical modeling; frequency sweeping time reduction; ground penetrating radar; multiple frequency tone receiving; multiple frequency tone transmission; orthogonal frequency division multiplexing technique; Finite difference methods; Ground penetrating radar; OFDM; Sensors; Time-domain analysis; Time-frequency analysis; Compressive Sampling; GPR; OFDM; Radar; SFCW;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7169097
