The week's pick
Random Articles
Reseach Article
Reconfigurable Stimulus Generator for Receive Beamformer Test-bed
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 117 - Number 5 |
| Year of Publication: 2015 |
| Authors: Khyati R.zalawadia, Neeraj Mishra, Himanshu Shah, U.d.dalal |
10.5120/20548-2922
|
Khyati R.zalawadia, Neeraj Mishra, Himanshu Shah, U.d.dalal . Reconfigurable Stimulus Generator for Receive Beamformer Test-bed. International Journal of Computer Applications. 117, 5 ( May 2015), 4-9. DOI=10.5120/20548-2922
Abstract
Laboratory testing of digital beamforming processor is required to test and optimize the beamformer algorithm, code and hardware before integrating with antenna and testing the beamformer in an anechoic chamber. Development of a stimulus generator, for carrying out such an exercise, itself can be quite an involved task for a digital beamformer employing a large phased array antenna. This paper proposes an innovative design of a stimulus generator for the receive beamformer system. A reconfigurable hardware prototype, with a Xilinx Virtex-5 FPGA based architecture, is developed to generate IF stimulus for an 8-elements receive beamformer. It can provide a stimulus for upto four transmitting sources, each with programmable frequency, bandwidth, direction of arrival, S/N and interference. The beamformer performance testing for selective element failure can also be facilitated. Testing of a beamformer with larger phased array antenna can be achieved using multiple cards. The hardware test results are reported
References
- Steven D. Blostein and Harry Leib, "Multiple antenna systems: Their role and impact in future wireless access", IEEE Communication. Mag. ,vol. 41, no. 7, pg. 94-101, 2003
- W. Xiang, P. Richardson, B. Walkenhorst, X. Wang, and T. Pratt, "A high-speed four-transmitter four-receiver MIMO OFDM test-bed: Experimental results and analyses," EURASIP Journal on Applied Signal Processing, vol. 2006, pp. 1–10.
- T. Haustein, A. Forck, H. Gabler, V. Jungnickel, and S. Schiffermuller, "Real-time signal processing for multi-antenna systems: algorithms, optimization and implementation on an experimental test-bed," EURASIP Journal on Applied Signal Processing, vol. 2006, pp. 1–21.
- D. Borkowski, L. Bruhl, C. Degen, W. Keusgen, G. Alirezaei,F. Geschewski, C. Oikonomopoulos, and B. Rembold, "SABA: A test-bed for a real-Time MIMO system," EURASIP Journal on Applied Signal Processing, vol. 2006, no. 1, pp. 1–15.
- J. W. Weijers, V. Derudder, S. Janssens, F. Petr, and A. Bourdoux,"From MIMO-OFDM algorithms to a real time wireless prototype: A systematic Matlab-to-hardware design flow," EURASIP Journal on Applied Signal Processing, vol. 2006, pp. 1–12.
- K. C. N. Madani and N. Hilton, "An antenna simulator system for satellite communications adaptive digital beam forming network", Recent Advances in Microwave Subsystems for Space and Satellite Applications, London, 1993
- Taco Kluwer, KeesSliump, RoelSchiphorst and FokkeHoekesem, "Development of a smart-antenna test-bed, demonstrating software defined digital beam forming", Proceedings of the 12th Annual Workshop on Circuits, Systems and Signal Processing, Netherlands, Nov 2001.
- Heung-Jae Im, Wonsang HwangSeungwon Choi, Hyeongdong Kim, "Performance analysis of a smart antenna system utilizing a test-bed implemented on a DSP board", Microwave Conference Asia-Pacific, 2000, pg799 – 803
- Juan Torres-Rosario, "Implementation of a phased array antenna using digital beamforming" MSc thesis Uni. of Puerto Rico, 2005.
Index Terms
Keywords