Abstract: In this work, a parametric up-converter amplifier is introduced as a wideband impedance-matching network. Chu’s limit restricts the minimum Q-factor of unloaded small antennas. However, the ...

Abstract: Shadow detection and compensation on high-resolution orthophoto is one of the most important tasks for ensuring the high quality of the radiometric balance of a digital orthophoto map (DOM).

1) If input is number , number class objects should be added 2) If input is string , string class objects should be joined 1) Import number and string classes defined in prog7b but do no rewrite ...