Next generation network’s main requirements are compact size and also support to heterogeneous network. Fractal antennas have useful applications in cellular telephone and microwave communications. Video conferencing, streaming video are main applications that are included in next generation networks and requirements for these applications are high data rates require to have high bandwidth. But...

Plasma sheath poses a serious challenge to inverse synthetic aperture radar (ISAR) imaging of hypersonic targets. This paper investigated the distribution characteristics electron density and velocity field in plasma surrounding target various flight scenes. The incident depth reflective surface electromagnetic (EM) waves with X-band, Ku-band, Ka-band can be determined based on frequency. We es...

Ririmi a ri xitirhisiwa eka swa tipolitiki, timali, na ndhavuko wa rixaka kumbe ntlawa lowu tirhisa ririmi rero. Khombo leri taka ku tekela ehansi vekela etlhelo rin’wana i herisa vumundzuku bya vanhu vo karhi. Hambiloko mfumo xidemokirasi wu tivisile leswaku tindzimi ta khumen’we ximfumo, ka ha swikombeto tin’wana leti tekeriwa no vekeriwa etlhelo. Xitsonga tanihi ra lava tshikileriweke emikar...

A number of satellite communication systems have been proposed using geosynchronous (GEO) satellites, as well as low earth orbit (LEO) constellations operating in the Ka-band and above. At these frequencies satellite networks are able to provide broadband services requiring wider bandwidth than the current services at C or Ku-band. As a consequence, some of the new services gaining momentum inc...

Estimation of path attenuation is a critical part retrieving precipitation parameters using measurements from the Dual-frequency Precipitation Radar (DPR) on board Global Measurement Mission (GPM) satellite. In this paper, we describe latest implementation surface reference technique (SRT) that uses scattering properties to infer through precipitation. Both single- and dual-frequency versions m...

1 Research partly supported by the Japan Society for the Promotion of Science for Young Scientists. Department of Mathematics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan; and Department of Mathematics, 1326 Stevenson Center, Vanderbilt University, Nashville, Tennessee 37240-0001 E-mail: [email protected], [email protected]...

∗Department of Precision Mechanics, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan E-mail: [email protected] ∗∗Digital Human Research Center, National Institute of Advanced Industrial Science and Technology (AIST) 2-3-26 Aomi, Koto-ku, Tokyo 135-0064, Japan ∗∗∗Research into Artifacts, Center for Engineering (RACE), The University...

Abstract The High-Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP) dual-frequency conically scanning airborne radar provides estimates of the range-profiled mean Doppler backscattered power from precipitation surface. A velocity–azimuth display analysis yields near-surface horizontal wind vector υ h in cases which is present throughout scan. From surface return, normalized cross sectio...