ABSTRACTS (PH D FOR GRADUATE SCHOOL OF ENGINEERING) Study on Beam Forming and Direction-of-Arrival Measurement for Solar Power Satellite
نویسنده
چکیده
S (PH D FOR GRADUATE SCHOOL OF ENGINEERING) Study on Beam Forming and Direction-of-Arrival Measurement for Solar Power Satellite A. K. M. Baki Laboratory ofApplied Radio Engineering for Humanosphere, RISH, Kyoto University. Figure 1 Normalized radiation patterns for phased array antenna of uniform amplitude, -10 dB Gaussian tapering, -10 dB lTD and -10 dB ITDU. 33 elements from each side were tapered in lTD. 30 elements from each side were tapered in lTDU and 40 elements from each side were ofunequal spacing in ITDU. 3 +
منابع مشابه
Jointly power and bandwidth allocation for a heterogeneous satellite network
Due to lack of resources such as transmission power and bandwidth in satellite systems, resource allocation problem is a very important challenge. Nowadays, new heterogeneous network includes one or more satellites besides terrestrial infrastructure, so that it is considered that each satellite has multi-beam to increase capacity. This type of structure is suitable for a new generation of commu...
متن کاملAn Elasticity Solution for Static Analysis of Functionally Graded Curved Beam Subjected to a Shear Force
In this paper, using 2-D theory of elasticity, a closed-form solution is presented for stressdistributions and displacements of a FG curved beam under shear force at its free end. The materialproperties are assumed to vary continuously through the radial direction based on a simple power lawmodel and Poisson’s ratio is supposed to be constant. In order to verify the solution, it is shown that a...
متن کاملOptimization Capabilities of LMS and SMI Algorithm for Smart Antenna Systems (RESEARCH NOTE)
In the present paper convergence characteristics of Sample matrix Inversion (SMI) and Least Mean Square (LMS) adaptive beam-forming algorithms (ABFA) are compared for a Smart Antenna System (SAS) in a multipath environment. SAS are employed at base stations for radiating narrow beams at the desired mobile users. The ABFA are incorporated in the digital signal processors for adjusting the weight...
متن کاملBiologically Inspired Four Elements Compact Antenna Arrays With Enhanced Sensitivity for Direction of Arrival Estimation
A new four elements compact antenna array is presented and discussed to achieve enhanced phase resolution without sacrificing the array output power. This structure inspired by the Ormia Ochracea’s coupled ears. The analogy between this insect acute directional hearing capabilities and the electrically compact antenna array is used to enhance the array sensitivity to direction of arrival estima...
متن کاملEvaluating the results of Hormuz strait wave simulations using WAVEWATCH-III and MIKE21-SW
In this study, the capabilities of WAWEWATCH-III and MIKE21-SW for predicting the characteristics ofwind-generated waves in Hormuz Strait are evaluated. The numerical models have been set up using Input data including GFS wind with 5° spatial resolution and 6 hours time intervals, along with the ETOPO1 bathymetry data with 2 arc-minute spatial resolutions. The results of the two model simulatio...
متن کامل