Digital AGC based on coherent adjustment cycle for DSSS receiver

Yuyao Shen; Yongqing Wang; Dewei Sheng; Siliang Wu

doi:10.1109/CC.2015.7084405

Digital AGC based on coherent adjustment cycle for DSSS receiver

Yuyao Shen, Yongqing Wang^*, Dewei Sheng, Siliang Wu

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

In order to meet the requirements for zero value stability of direct sequence spread spectrum (DSSS) signal processing in high dynamic scenario, digital automatic gain control (AGC) is employed to regulate power. However, conventional AGC causes degradation in the synchronization performance of DSSS receiver. Based on the theoretical analysis of the influence of digital AGC on DSSS signal synchronization, this paper proposes a new AGC algorithm, which is applicable to multi-channel digital DSSS signal receiver. By making power adjustment cycle and synchronization cycle coherent with each other adaptively, the influence of digital AGC on subsequent synchronization processing has been eliminated. Theoretical analysis, simulation results and experimental data verify the validity of the proposed algorithm. By virtue of the proposed algorithm, the influence of digital AGC on DSSS signal synchronization is eliminated. This algorithm applies to an aerospace engineering project successfully.

Original language	English
Pages (from-to)	95-106
Number of pages	12
Journal	China Communications
Volume	12
Issue number	2
DOIs	https://doi.org/10.1109/CC.2015.7084405
Publication status	Published - 1 Feb 2015

Keywords

DSSS receiver
acquisition
digital AGC
tracking

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10.1109/CC.2015.7084405

Cite this

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title = "Digital AGC based on coherent adjustment cycle for DSSS receiver",

abstract = "In order to meet the requirements for zero value stability of direct sequence spread spectrum (DSSS) signal processing in high dynamic scenario, digital automatic gain control (AGC) is employed to regulate power. However, conventional AGC causes degradation in the synchronization performance of DSSS receiver. Based on the theoretical analysis of the influence of digital AGC on DSSS signal synchronization, this paper proposes a new AGC algorithm, which is applicable to multi-channel digital DSSS signal receiver. By making power adjustment cycle and synchronization cycle coherent with each other adaptively, the influence of digital AGC on subsequent synchronization processing has been eliminated. Theoretical analysis, simulation results and experimental data verify the validity of the proposed algorithm. By virtue of the proposed algorithm, the influence of digital AGC on DSSS signal synchronization is eliminated. This algorithm applies to an aerospace engineering project successfully.",

keywords = "DSSS receiver, acquisition, digital AGC, tracking",

author = "Yuyao Shen and Yongqing Wang and Dewei Sheng and Siliang Wu",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

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T1 - Digital AGC based on coherent adjustment cycle for DSSS receiver

AU - Shen, Yuyao

AU - Wang, Yongqing

AU - Sheng, Dewei

AU - Wu, Siliang

PY - 2015/2/1

Y1 - 2015/2/1

N2 - In order to meet the requirements for zero value stability of direct sequence spread spectrum (DSSS) signal processing in high dynamic scenario, digital automatic gain control (AGC) is employed to regulate power. However, conventional AGC causes degradation in the synchronization performance of DSSS receiver. Based on the theoretical analysis of the influence of digital AGC on DSSS signal synchronization, this paper proposes a new AGC algorithm, which is applicable to multi-channel digital DSSS signal receiver. By making power adjustment cycle and synchronization cycle coherent with each other adaptively, the influence of digital AGC on subsequent synchronization processing has been eliminated. Theoretical analysis, simulation results and experimental data verify the validity of the proposed algorithm. By virtue of the proposed algorithm, the influence of digital AGC on DSSS signal synchronization is eliminated. This algorithm applies to an aerospace engineering project successfully.

AB - In order to meet the requirements for zero value stability of direct sequence spread spectrum (DSSS) signal processing in high dynamic scenario, digital automatic gain control (AGC) is employed to regulate power. However, conventional AGC causes degradation in the synchronization performance of DSSS receiver. Based on the theoretical analysis of the influence of digital AGC on DSSS signal synchronization, this paper proposes a new AGC algorithm, which is applicable to multi-channel digital DSSS signal receiver. By making power adjustment cycle and synchronization cycle coherent with each other adaptively, the influence of digital AGC on subsequent synchronization processing has been eliminated. Theoretical analysis, simulation results and experimental data verify the validity of the proposed algorithm. By virtue of the proposed algorithm, the influence of digital AGC on DSSS signal synchronization is eliminated. This algorithm applies to an aerospace engineering project successfully.

KW - DSSS receiver

KW - acquisition

KW - digital AGC

KW - tracking

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VL - 12

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JO - China Communications

JF - China Communications

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Digital AGC based on coherent adjustment cycle for DSSS receiver

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Keywords

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