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디지털 능동배열레이다의 빔형성을위한고정소수점기반빔형성계수 연산기 설계 및성능분석.
- Source :
- Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji; Dec2023, Vol. 34 Issue 12, p918-926, 9p
- Publication Year :
- 2023
-
Abstract
- In this study, a fixed-point-based beamforming coefficient calculator is proposed for the beamforming of a digital active array radar. Floating-point-based calculations enable precise calculations but have the disadvantages of high computational complexity and latency. To complement this, the proposed fixed-point-based beamforming coefficient calculation had a high signal to quantization noise ratio (SQNR) of 51.35 dB and the beam steering angle error was between −0.05° and 0.05° when compared with those of the floating-point calculation; these satisfied the system requirements. The proposed fixed-point-based beamforming coefficient calculator was implemented on a Xilinx Kintex UltraScale FPGA. It could reduce 54.94 % CLB register, 44.33 % CLB LUT, 60 % DSP slice, and −58.16 % latency than the floating-point calculator. Furthermore, at small beam pattern powers, the performance degradation of the calculator was less compared with previous research. [ABSTRACT FROM AUTHOR]
- Subjects :
- FLOATING-point arithmetic
BEAMFORMING
ARITHMETIC
RADAR
Subjects
Details
- Language :
- Korean
- ISSN :
- 12263133
- Volume :
- 34
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji
- Publication Type :
- Academic Journal
- Accession number :
- 175245556
- Full Text :
- https://doi.org/10.5515/KJKIEES.2023.34.12.918