TY - GEN
T1 - Interpolation of high frequency data by using matrix pencil and greens's function
AU - Yang, Jie
AU - Taylor, Mary C.
AU - Zhang, Yu
AU - Sarkar, Tapan K.
PY - 2008
Y1 - 2008
N2 - In this paper a novel interpolation approach is proposed to reduce the number of samples required for system response reconstruction. We explore the effect of complex exponential term e-jkr (which is the numerator part of Green's function) in electromagnetic field, which causes the oscillation in system response especially in the high frequency domain. If it is divided from the field quantity, even though the magnitude is unchanged, both real and imaginary parts of the frequency response become smoother. The interpolation is performed separately for both real and imaginary parts so that the sample rate required for accurate reconstruction is significantly reduced. The interpolation is carried out by matrix pencil method and the coefficients of which are calculated by using the total least square (TLS) implementation to improve the accuracy. Numerical examples are presented to illustrate the applicability of this unique approach in ultra-high frequency bands.
AB - In this paper a novel interpolation approach is proposed to reduce the number of samples required for system response reconstruction. We explore the effect of complex exponential term e-jkr (which is the numerator part of Green's function) in electromagnetic field, which causes the oscillation in system response especially in the high frequency domain. If it is divided from the field quantity, even though the magnitude is unchanged, both real and imaginary parts of the frequency response become smoother. The interpolation is performed separately for both real and imaginary parts so that the sample rate required for accurate reconstruction is significantly reduced. The interpolation is carried out by matrix pencil method and the coefficients of which are calculated by using the total least square (TLS) implementation to improve the accuracy. Numerical examples are presented to illustrate the applicability of this unique approach in ultra-high frequency bands.
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U2 - 10.1109/APS.2008.4619433
DO - 10.1109/APS.2008.4619433
M3 - Conference contribution
AN - SCOPUS:55649107772
SN - 9781424420421
T3 - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
BT - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
T2 - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
Y2 - 5 July 2008 through 12 July 2008
ER -