Influence of Limited Test Distance on Far-field Measurement for GNSS Anti-jamming Array

被引：0

作者：

Fang X.-L. ^{[1
]}

Wu L.-J. ^{[2
]}

Zhang J.-J. ^{[1
]}

机构：

[1] School of Electronic Information, Hunan Institute of Information Technology, Changsha, 410151, Hunan

[2] Engineening Research Center for Position, Navigation and Time, College of Electronic Science, National University of Defense Technology, Changsha, 410073, Hunan

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2020年 / 48卷 / 05期

关键词：

Antenna array; Anti-jamming; Farfield measurement; Limited test distance error; Satellite navigation;

D O I：

10.3969/j.issn.0372-2112.2020.05.025

中图分类号：

学科分类号：

摘要：

This paper analyzes the limited distance induced effects of measurement performance for GNSS anti-jamming arrays. In the case of fixed beam array, according to the conventional far field condition, when the distance between the antenna under test and the probe antenna is longer than 2D2/λ (D is the size of antenna aperture), the limited test distance has little effects of the main beam, however, the first null of the pattern is partially filled. In the case of adaptive array, the nulls are kept for the limited distance induced steering vectors of interferences will be compensated by adaptive weights. The gain except for the nulls has some changes, but the bias has no remarkable effects of average angular coverage for array gain. We claim that the capability of anti-jamming and the usability of the receiver will be kept, when the test distance meet the condition of minimized far field distance. © 2020, Chinese Institute of Electronics. All right reserved.

引用

页码：1030 / 1035

页数：5

共 15 条

[1]

JIA Qiong-qiong, WU Ren-biao, WANG Wen-yi, Et al., GNSS adaptive interference suppression algorithm for high accuracy measurement, Acta Electronica Sinica, 46, 11, pp. 2753-2760, (2018)

[2]

ZHOU Wan-xing, Research of a new type techniques for anti-interference using polarization, Acta Electronica Sinica, 37, 3, pp. 454-458, (2009)

[3]

CUI Jian-hua, CHENG Nai-ping, NI Shu-yan, Research on spoofing suppressing method using antenna array for navigation signal, Acta Electronica Sinica, 46, 2, pp. 365-371, (2018)

[4]

DANA Howell, DENICE Jacobs, AFRL navigation warfare (NAVWAR) testbed, Proceedings of ION-GNSS 20th International Technical Meetings of the Satellite Division, pp. 147-154, (2009)

[5]

YANG Bo, GUO Shu-xia, LIU Ning, GNSS receiver test in large anechoic chamber, pp. 438-443, (2010)

[6]

FREDERIC L, SOLENE B, ERWAN G, HERVE L., Anti-jam protection by antenna, GPS Solution, 3, pp. 111-116, (2013)

[7]

ALISON B, DAVID M., Test results of a 7-element small controlled reception pattern antenna, Proceedings of ION GPS 2001, pp. 2022-2029, (2001)

[8]

WILLIAMS L, STEVE C, JEREMY C, PETER C, STEVE S., Four-element adaptive array evaluation for united states navy airborne applications, Proceedings of ION GPS 2000, pp. 2523-2532, (2000)

[9]

KRAUS J D, MARHEFKA R J., Antennas:For All Applications(3rd Edition), pp. 520-587, (2002)

[10]

BALANIS C A., Antenna Theory Analysis and Design(3rd Edition), pp. 560-597, (2005)

← 1 2 →