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Detection of pedestrian micro-motion can be applied into Public security field. With shorter wavelength in Terahertz(THz), target Doppler effect is more significant, and the penetration ability is stronger. Based on a line structure pedestrian model, this research compares the characteristics of smooth and rough pedestrian in microwave band(12GHz) and THz band(140GHz and 220GHz) with frequency analysis...
A terahertz (THz) radar system with the highest frequency up to 0.22THz is described in this paper. The system is built based on the microwave up-conversion technology and with a good performance in operating range. The radar cross section (RCS) measurement of different objects, namely, corner reflector, cylinder, rectangular plate and a scale car model, is performed based on the THz system. By the...
Fast raw-signal simulation is of considerable value for missile-borne synthetic aperture radar (SAR) algorithm development. On the basis of the two-dimensional (2-D) Fourier simulation method for stripmap SAR, we present a fast echo simulation method suitable for missile-borne SAR diving with constant acceleration. The analytical expression for the 2-D signal spectrum is derived and then converted...
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