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Why do we need "DigiDARN" - a global network of digital SuperDARN radars? Proceedings of the Workshop on the Applications of Radio Science, Refereed Paper R-25, Leura, New South Wales, 15-17 February, 2006, 2006 (Ref: 13075)
Category 1: Peer-reviewed literature

The Super Dual Auroral Radar Network (SuperDARN) is an international network of oblique HF over-the-horizon … radars dedicated to the study of high latitude magnetosphere-ionosphere convection. In scientific terms, they have been … an outstanding success…

A High Performance Digital Radar for Extended Space Weather Investigations Australian Institute of Physics (AIP) 17th Congress, Refereed Paper 48, Brisbane, 4-8 December 2006, 2006 (Ref: 13048)
Category 3: Conference paper

This paper outlines work at La Trobe University on the development of a “fully digital” radar for space weather … investigations. The new radar will enhance the existing Tasman International Geospace Environment Radar … (TIGER) that probes beyond the horizon…

FPGA Implementation of a Phased Array DBF using Distributed Arithmetic Method Proceedings of the 6th International Conference on Optimization: Techniques and Applications (ICOTA), 2005 (Ref: 13047)
Category 3: Conference paper

Efficient digital phased array beams require a high resolution timing vector. The timing coefficients cause speed bottleneck … in FPGA implementation of such systems in the HF frequency range. Distributed Arithmetic (DA)…

FPGA Implementation of Digital Upconversion using Distributed Arithmetic FIR Filters Proceedings of the 2004 IEEE International Conference on Field-Programmable Technology, 2004 (Ref: 13046)
Category 3: Conference paper

Distributed Arithmetic (DA) is a high speed … multiplication technique used for implementation of digital … filters and signal upconversions. The DA is bit serial word … parallel approach where throughput rate does not depend … on flter length or data ste.

FPGA implementation of a phased array DBF using a Latch Method Proceedings of the International Networking and Communications Conference, 2004 (Ref: 13008)
Category 3: Conference paper

Abstract - Timing resolution plays significant role in … generating digital phased array beams. In this paper we … present a latch method for FPGA implementation of digital … heamforming (DBF') for an ionospheric radar.

Analog conversion for FPGA implementation of the TIGER transmitter using a 14 bit DAC Proceedings of the Second IEEE International Workshop on Electronic Design Test and Applications, 2004 (Ref: 13007)
Category 3: Conference paper

FPGA is a potential medium for DSP implementation of direct conversion transmitters and receivers. However analog interface cannot be ruled out since amplification and other tasks are still in the analog domain. In a previous work…

Quantization effects in digital upconversion and digital beam forming for TIGER Radar System WARS04 (Workshop on the Applications of Radio Science) Proceedings, National Committee for Radio Science, Australian Academy of Science, Paper G11, 2004 (Ref: 13006)
Category 3: Conference paper

Quantization is a representation of data samples with a certain number of bits per sample after rounding to a suitable … level of precision. Quantization errors in a Digital Signal Processing (DSP) system can be introduced from three … sources; one source is input quantization…

Digital stereo enhancement to the TIGER Radar System WARS04 (Workshop on the Applications of Radio Science) Proceedings, National Committee for Radio Science, Australian Academy of Science, Paper G15, 2004 (Ref: 13005)
Category 3: Conference paper

The Tasman International Geospace Environment Radar (TIGER), which is part of the global SuperDARN network, is a dual HF radar system with overlapping footprints designed to map ionospheric motions by detecting ionospheric scatter.

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