Title :
An ultra-wideband microwave radar sensor for characterizing pavement subsurface
Author :
Joongsuk Park ; Cam Nguyen
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A new ultra-wideband (UWB) stepped-frequency radar sensor operating from 0.6 to 5.6 GHz has been developed using microwave integrated circuits for pavement subsurface characterization. UWB microstrip quasi-horn antennas have also been designed and tested for use in the sensor. A new simple yet effective, accurate procedure was developed to compensate the amplitude deviations and non-linear phase errors of the complex I/Q vectors due to the inherent imperfection of the system. The system has been used to assess a pavement sample with good accuracy.
Keywords :
horn antennas; microstrip antennas; radar applications; radar receivers; superheterodyne receivers; 0.6 to 5.6 GHz; amplitude deviations; complex I/Q vectors; microstrip quasi-horn antennas; microwave integrated circuits; nonlinear phase errors; pavement subsurface; stepped-frequency radar sensor; ultra-wideband microwave radar sensor; Frequency; Microstrip antennas; Microwave integrated circuits; Microwave measurements; Microwave sensors; Radar; Sensor phenomena and characterization; Signal processing; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212644
