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Ashok Kumar, V.
- Design and Analysis of Broadband Beamspace Adaptive Arrays Using Fractional Fourier Transform
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Authors
Affiliations
1 Dept. of Electronics and Communication Engineering, College of Engineering, (AITAM), Tekkali, IN
2 Dept. of Electronics and Communication Engineering, AUCE, Visakhapatnam, IN
3 Dept. of Electronics and Communication Engineering College of Engineering, (AITAM), Tekkali, IN
1 Dept. of Electronics and Communication Engineering, College of Engineering, (AITAM), Tekkali, IN
2 Dept. of Electronics and Communication Engineering, AUCE, Visakhapatnam, IN
3 Dept. of Electronics and Communication Engineering College of Engineering, (AITAM), Tekkali, IN
Source
International Journal of Electronics and Communication Engineering, Vol 5, No 2 (2012), Pagination: 193-206Abstract
The beamwidth of a linear array depends on number of elements in the array and frequency of the input signal. At present designing of wideband antennas and beamformers became important in the fields of microphone arrays intended for teleconferencing, in transmitting or receiving spread spectrum signals, crip signals etc. A beamspace adaptive planar array for broadband beamforming is proposed based on the filter-and-sum beamforming technique and the required filters are implemented using fractional Fourier Transform. A detailed design method was provided for adaptive arrays and simulation results are provided for the proposed method. The results obtained shows that fractional Fourier Transform filter method is superior in interference rejection compared to conventional finite impulse response filter method.Keywords
Antenna Arrays, Linear Arrays, Broadband Antennas, Adaptive Antennas, Constant Beam Width, Interference Rejection, Filter–and–Sum Beamformer, Fractional Fourier Transform (FrFT)References
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- Significant Role of E-Resources in Engineering College Libraries–A New Initiatives
Abstract Views :432 |
PDF Views:364
Authors
Affiliations
1 DLIS, Periyar University, Salem – 636011, Tamil Nadu, IN
1 DLIS, Periyar University, Salem – 636011, Tamil Nadu, IN
Source
ScieXplore: International Journal of Research in Science, Vol 3, No 2 (2016), Pagination: 70-72Abstract
With accelerated advance of advice technology the libraries are affective appear e-resources, which are begin to be beneath amount and added accessible for simple access. The frequently accessible cyber banking assets mainly CD-ROMs, OPACs, and Internet etc., which are replacing the present book media in today's accelerated alteration world, advice needs of learners and ability seekers are met through a glut of sources. The e-resources accessible in a library play a above role in facilitating admission to appropriate advice to the users in an simple and active manner. The users accept afflicted their advice gluttonous behavior and demands assets and casework from the libraries electronically. The actualization of agenda technology application agenda media has accelerated the advance and development of advice in bendable from and fabricated the advice action added active and dynamic. The measurements of advice in altered formats creates botheration of access. In case of acceptable library area cardboard based advice and advice arrangement is bedfast to library and advice centers, burning admission appears to be limited. But, in a active arrangement of advice area everybody can admission to advice amid in limited library and advice centers through a arrangement is termed agenda information. The resultant abnormality is the actualization of agenda libraries area burning and simple admission to bookish advice is guaranteed. Since the advertisement action of all types of abstracts is fabricated electronically, the accumulation of agenda library is inevitable.Keywords
Accessing E–Resources, Digital, Electronic Resources.References
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