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The microstructure and the shear strength of titanium explosive-rolled clad plate at different rolling temperatures and rolling reductions were analyzed. The shear strength was determined by tensile shear test, and the microstructure was observed by optical microscopy, X-ray diffraction, scanning electron microscope and transmission electron microscope. The results show that upon decreasing of starting...
Crosstalk is the major limiting factor affecting the achieve rate of VDSL/VDSL2 system. For the downstream transmission, a precoder is generally used to compensate the effect of the crosstalk. Following J. Louveaux's work, an improved adaptive precoder algorithm based on sign-error feedback information for crosstalk cancellation in downstream transmission is proposed in this paper. Computer simulation...
The detection, motion parameter estimation and imaging of moving targets cause serious problems for conventional SAR systems with a single antenna. In this paper, a triplex-channel SAR system is proposed. First, with triplex-channel receiver and DPCA technique, the clutter can be suppressed and moving target is retained. Then from DPCA output data, the moving target can be detected with its motion...
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