All-digital automatic gain control loop based on gain decision

Wang Yitao, Shen Yuyao, Yu Xiuli, Wang Yongqing

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

A long settling time of the all-digital automatic gain control (AGC) algorithm is obtained in a navigation receiver. To solve this problem, an improved AGC algorithm based on the gain decision is proposed in this paper. First, a mathematical model and loop settling time of the conventional AGC algorithm in the navigation receiver are analyzed. The contradiction between the loop settling time and the gain accuracy in the algorithm is shown. Accordingly, the proposed AGC algorithm based on the gain decision is examined. The algorithm calculates the deviation between the amplitudes of the output signal and reference value. Hence, the AGC loop can immediately adjust the gain when the amplitudes of the input signal change. In a comparison with the conventional AGC algorithm, the theoretical analysis and numerical simulation results verified that the proposed AGC algorithm can decrease the settling time without decreasing the gain accuracy of the AGC loop. The presented algorithm was implemented by a field-programmable gate array with low resource consumption and low complexity.

Original languageEnglish
Title of host publication2017 9th International Conference on Advanced Infocomm Technology, ICAIT 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages63-67
Number of pages5
ISBN (Electronic)9781538636282
DOIs
Publication statusPublished - 19 Jun 2018
Event9th International Conference on Advanced Infocomm Technology, ICAIT 2017 - Chengdu, China
Duration: 22 Nov 201724 Nov 2017

Publication series

Name2017 9th International Conference on Advanced Infocomm Technology, ICAIT 2017

Conference

Conference9th International Conference on Advanced Infocomm Technology, ICAIT 2017
Country/TerritoryChina
CityChengdu
Period22/11/1724/11/17

Keywords

  • all-digital
  • automatic gain control
  • gain decision
  • settling time

Fingerprint

Dive into the research topics of 'All-digital automatic gain control loop based on gain decision'. Together they form a unique fingerprint.

Cite this

Yitao, W., Yuyao, S., Xiuli, Y., & Yongqing, W. (2018). All-digital automatic gain control loop based on gain decision. In 2017 9th International Conference on Advanced Infocomm Technology, ICAIT 2017 (pp. 63-67). (2017 9th International Conference on Advanced Infocomm Technology, ICAIT 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICAIT.2017.8388890