Title :
Investigation of multirate techniques for digital generation of transmitter signals for TIGER radar
Author :
Salim, T. ; Devlin, J. ; Whittington, J.
Author_Institution :
Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
Abstract :
Research has been carried out on possible methods for the digital generation of signals for the TIGER (Tasman International Geospace Environment Radar) transmitter. Simulation results have shown that the polyphase network provide better performance compared to an FIR filter. The lower sampling rate of polyphase filters make them good candidates for applications with high throughput requirements. Implementation of an FIR filter is addressed with a technique which is less sensitive to hardware utilization. A hardware prototype has been constructed using an Altera Flex 10k20 device. Results demonstrate the feasibility of using FPGA devices for the complete implementation of a digital TIGER transmitter.
Keywords :
FIR filters; field programmable gate arrays; ionospheric measuring apparatus; parallel architectures; radar transmitters; remote sensing by radar; signal sampling; Altera Flex 10k20 device; FIR filter; FPGA devices; Super Dual Auroral Radar Network; SuperDARN network; TIGER radar; Tasman International Geospace Environment Radar; hardware prototype; multirate techniques; polyphase network; sampling rate; signal digital generation; transmitter signals; Finite impulse response filter; Ionosphere; Magnetic fields; Magnetosphere; Nonlinear distortion; Signal generators; Spaceborne radar; Sun; Transmitters; Wind;
Conference_Titel :
Multi Topic Conference, 2001. IEEE INMIC 2001. Technology for the 21st Century. Proceedings. IEEE International
Print_ISBN :
0-7803-7406-1
DOI :
10.1109/INMIC.2001.995308
