每年專案
摘要
In this paper, an inputdecimation technique for the recursive discrete Fourier transform (RDFT)/inverse DFT (RIDFT) algorithm is proposed for the highspeed broadband communication systems. It is worth noting that the inputdecimation approach is presented to decrease the number of input sequences for the recursive filter so that the computation cycle of RDFT/RIDFT can be shortened to meet the computing time requirement (3.6μs) for the highspeed broadband communication systems. Therefore, the inputdecimation RDFT/RIDFT algorithm is able to carry out at least 55.5% reduction of the total computation cycles compared with the considered algorithms. Furthermore, holding the advantages of inputdecimation technique, the computational complexities of the realmultiplication and addition are reduced to 41.3% and 22.2%, respectively. The area and the power consumption can be minimized by employing the costefficient constant multiplier with the refined signeddigit expression of twiddle factors. Finally, the physical implementation results show that the core area is 0.37× 0.37 mm^{2} with 0.18μ m CMOS process. The power consumption is 5.16 mW with the supply voltage of 1.8 V and the operating clock of 40 MHz. The proposed design can achieve 258 million of computational efficiency per unit area (CEUA) and really outperform the previous works.
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文章編號  8822601 
頁（從  到）  47134726 
頁數  14 
期刊  IEEE Transactions on Circuits and Systems I: Regular Papers 
卷  66 
發行號  12 
DOIs  
出版狀態  已出版  12月 2019 
指紋
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應用於IEEE Std 802.3bp™2016 下世代Gigabit 乙太網路傳輸之數位 基頻晶片設計(2/3)
Shiue, M.T. (PI)
1/08/18 → 31/07/19
研究計畫: Research
