Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter

Author:

Dong Tao12,Wang Qiushi3,Zhao Yunxiao3,Ji Lixia3,Zeng Hao3ORCID

Affiliation:

1. State Key Laboratory of Space-Ground Integrated Information Technology, Beijing 100095, China

2. Beijing Institute of Satellite Information Engineering, Beijing 100095, China

3. College of Communication Engineering, University of Chongqing, Shazheng Street 174, Chongqing 400044, China

Abstract

In a broadband adaptive array antenna with a space-time filter, a delay filter is required before digital beamforming when the Frost algorithm is used to obtain the weight vector. In this paper, we propose a Farrow structure instead of a direct form FIR structure to implement the time delay filter since it can satisfy the demand for real-time update and is very suited for the FPGA platform. Furthermore, a new off-line algorithm to calculate the Farrow filter coefficient is presented if the filter coefficient is symmetric. Finally, simulations are presented to illustrate that the design methodology for the Farrow filter is correct. The simulations also prove that the Frost broadband adaptive antenna effectively mitigates the interferences with a Farrow filter.

Funder

Chongqing University

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Optimized Design of a Variable Fractional Delay Filter With Delay Error Constraints;IEEE Transactions on Circuits and Systems II: Express Briefs;2023-08

2. Investigations on Brain Tumor Classification Using Hybrid Machine Learning Algorithms;Journal of Healthcare Engineering;2022-02-14

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