Modified CML-based Synchronization Algorithm for IR-UWB Communications and its Low-complexity VLSI Implementation
Xiaoyang Zeng · Journal of Chinese Computer Systems · 2009
Based on CML estimation,a modified synchronization algorithm is proposed for IR-UWB system,which includes two improved schemes: Frame-level Noise Suppression(FNS) and Noise Template Cross-correlation Estimation(NTCE).Compared with original CML algorithm,the proposed algorithm enhances the noise suppression in the stage of noise template generation and parameter estimation.Both mathematical analysis and simulation indicate that each proposed scheme could achieve the expected optimization of performance.Besides,the paper also provides the circuit structure according to the proposed algorithm. The result of VLSI implementation will be presented at the end of this paper.