کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10364157 871469 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
CORDIC based fast algorithm for power-of-two point DCT and its efficient VLSI implementation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
CORDIC based fast algorithm for power-of-two point DCT and its efficient VLSI implementation
چکیده انگلیسی
-In this paper, we present a coordinate rotation digital computer (CORDIC) based fast algorithm for power-of-two point DCT, and develop its corresponding efficient VLSI implementation. The proposed algorithm has some distinguish advantages, such as regular Cooley-Tukey FFT-like data flow, identical post-scaling factor, and arithmetic-sequence rotation angles. By using the trigonometric formula, the number of the CORDIC types is reduced dramatically. This leads to an efficient method for overcoming the problem that lack synchronization among the various rotation angles CORDICs. By fully reusing the uniform processing cell (PE), for 8-point DCT, only four carry save adders (CSAs)-based PEs with two different types are required. Compared with other known architectures, the proposed 8-point DCT architecture has higher modularity, lower hardware complexity, higher throughput and better synchronization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronics Journal - Volume 45, Issue 11, November 2014, Pages 1480-1488
نویسندگان
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