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A new CORDIC architecture based on R-LFSR common operators in a software radio context

Abstract : In the Software Defined Radio (SDR) area, parameterization is becoming a very important topic in the design of multi-standard terminals. In this context, the Common Operator (CO) technique defines an open and optimized terminal based on a limited set of generic components called Common Operators. The Method was already described in and two relevant possible CO were presented: CORDIC and Reconfigurable LFSR . Actually, CORDIC could be parameterized for matrix inversion, filters, FFT and LFSR for Gold Sequences Generators, Convolutional Coding (NSC (Non Systematic Coder), RSC(Recursive Systematic Coder) k/n), Cyclic coding, etc. In the proposed study, the synergy between CORDIC and LFSR is introduced. We present an original CORDIC architecture based on a new Reconfigurable-LFSR (RLFSR). In this case, the functions which were performed by CORDIC can be performed by R-LFSR and vice-versa. The new CORDIC architecture was successfully implemented on a FPGA Virtex-4 to compare with a classical CORDIC. The complexity evaluation is presented.
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https://hal-supelec.archives-ouvertes.fr/hal-00464994
Contributor : Myriam Andrieux <>
Submitted on : Thursday, March 18, 2010 - 3:42:49 PM
Last modification on : Monday, October 5, 2020 - 9:50:17 AM

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  • HAL Id : hal-00464994, version 1

Citation

Hongzhi Wang, Yves Louët, Jacques Palicot, Laurent Alaus, Dominique Noguet. A new CORDIC architecture based on R-LFSR common operators in a software radio context. Karlsruhe Workshop on Software Radio WSR10, Mar 2010, Karlsruhe, Germany. pp.NC. ⟨hal-00464994⟩

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