The search functionality is under construction.
The search functionality is under construction.

A Novel Fixed-Point Conversion Methodology For Digital Signal Processing Systems

Phuong T.K. DINH, Linh T.T. DINH, Tung T. TRAN, Lam S. PHAM, Han Le DUC, Chi P. HOANG, Minh D. NGUYEN

  • Full Text Views

    0

  • Cite this

Summary :

Recently, most signal processing algorithms have been developed with floating-point arithmetic, while the fixed-point arithmetic is more popular with most commercial devices and low-power real-time applications which are implemented on embedded/ASIC/FPGA systems. Therefore, the optimal Floating-point to Fixed-point Conversion (FFC) methodology is a promising solution. In this paper, we propose the FFC consisting of signal grouping technique and simulation-based word length optimization. In order to evaluate the performance of the proposed technique, simulations are carried out and hardware co-simulation on Field Programmable Gate Arrays (FPGAs) platform have been applied to complex Digital Signal Processing (DSP) algorithms: Linear Time Invariant (LTI) systems, multi-mode Fast Fourier Transform (FFT) circuit for IEEE 802.11 ax WLAN Devices and the calibration algorithm of gain and clock skew in Time-Interleaved ADC (TI-ADC) using Adaptive Noise Canceller (ANC). The results show that the proposed technique can reduce the hardware cost about 30% while being able to maintain its speed and reliability.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E105-A No.12 pp.1537-1550
Publication Date
2022/12/01
Publicized
2022/06/17
Online ISSN
1745-1337
DOI
10.1587/transfun.2021EAP1151
Type of Manuscript
PAPER
Category
Digital Signal Processing

Authors

Phuong T.K. DINH
  the Hanoi University of Industry,the Hanoi University of Science and Technology
Linh T.T. DINH
  the Hanoi University of Science and Technology
Tung T. TRAN
  the Hanoi University of Science and Technology
Lam S. PHAM
  the Hanoi University of Science and Technology
Han Le DUC
  the Hanoi University of Science and Technology
Chi P. HOANG
  the Hanoi University of Science and Technology
Minh D. NGUYEN
  the Hanoi University of Science and Technology

Keyword