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- Title
基于GPU的数字下变频累积误差控制方法.
- Authors
李 超; 焦义文; 傅诗媛彳; 高泽夫; 毛飞龙
- Abstract
Aiming at the real-time demand of high-speed data processing in digital down-conversion system, a digital down-conversion processing algorithm based on central processing unit(CPU) + graphics processing unit (GPU) is designed for heterogeneous platform, and the corresponding parallel programming is completed, and the actual data is verified・ Since GPU computing using single precision floating point number format on data processing, for long time history in the process of data processing, can produce floating-point rounding error accumulation, not accurate and reliable results・ A combined phase cycle zero and error-free transformation compensation method is designed, and the floating-point number rounding error control and compensation is realized・ Data test results show that the proposed method can control the error within 10-11, and does not cumulative with time, and the calculation results are accurate and reliable.
- Subjects
REAL-time computing; CENTRAL processing units; GRAPHICS processing units; PARALLEL programming; ELECTRONIC data processing; HETEROGENEOUS computing; ALGORITHMS
- Publication
Systems Engineering & Electronics, 2023, Vol 45, Issue 4, p965
- ISSN
1001-506X
- Publication type
Article
- DOI
10.12305/j.issn.1001-506X.2023.04.04