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Low-Complexity High...
Low-Complexity High-Precision Method and Architecture for Computing the Logarithm of Complex Numbers
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- Chen, Hui (författare)
- Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.
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- Yu, Zongguang (författare)
- Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.
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- Zhang, Yonggang (författare)
- Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.
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- Lu, Zhonghai (författare)
- KTH,Elektronik och inbyggda system
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- Fu, Yuxiang (författare)
- Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.
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- Li, Li (författare)
- Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.
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Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China Elektronik och inbyggda system (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2021
- 2021
- Engelska.
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Ingår i: IEEE Transactions on Circuits and Systems Part 1. - : Institute of Electrical and Electronics Engineers (IEEE). - 1549-8328 .- 1558-0806. ; 68:8, s. 3293-3304
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper proposes a low-complexity method and architecture to compute the logarithm of complex numbers based on coordinate rotation digital computer (CORDIC). Our method takes advantage of the vector mode of circular CORDIC and hyperbolic CORDIC, which only needs shift-add operations in its hardware implementation. Our architecture has lower design complexity and higher performance compared with conventional architectures. Through software simulation, we show that this method can achieve high precision for logarithm computation, reaching the relative error of 10(-7). Finally, we design and implement an example circuit under TSMC 28nm CMOS technology. According to the synthesis report, our architecture has smaller area, lower power consumption, higher precision and wider operation range compared with the alternative architectures.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Inbäddad systemteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Embedded Systems (hsv//eng)
Nyckelord
- Hardware
- Computer architecture
- Software
- Convergence
- Complexity theory
- Synthetic aperture radar
- Table lookup
- Complex number
- complex logarithm
- CORDIC
- low design complexity
- high hardware efficiency
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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