@inproceedings{f5f6d1833bef4b37a7388f902feb8399,
title = "Design and FPGA implementation of digital AGC in sonar receivers",
abstract = "In addressing the issue of gradually attenuating amplitude of underwater acoustic signals received by hydrophones, this paper presents a feedforward digital automatic gain control (AGC) system based on a table lookup method. This approach reduces significant computational load associated with logarithmic operations, multiplication, and floating-point arithmetic. The system was simulated using MATLAB software, and the results indicate that, compared to the commonly used binary search-based digital AGC systems, the feedforward digital AGC system based on the table lookup method exhibits faster control speed, smoother output signals, and a noticeable reduction in signal transients. Finally, a comparative validation of the two algorithms was conducted on Field Programmable Gate Array (FPGA), confirming the applicability and outstanding performance of the feedforward digital AGC system based on the table lookup method in practical engineering applications.",
keywords = "Automatic Gain Control, Binary Search, Field-Programmable Gate Array (FPGA), Signal Transients, Table Lookup Method",
author = "Kuixu Ma and Jinyan Du and Zeqi Liu and Shengxin Li and Chuanlin He",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; 4th International Conference on Sensors and Information Technology, ICSI 2024 ; Conference date: 05-01-2024 Through 07-01-2024",
year = "2024",
doi = "10.1117/12.3029260",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Lijun Wu and Zhongpan Qiu",
booktitle = "Fourth International Conference on Sensors and Information Technology, ICSI 2024",
address = "美国",
}