Aug 2026· 2026 IEEE/CIC International Conference on Communications in China (ICCC)· pp. 1110-1115· 0 citations· 12 references
Abstract
This paper aims to calibrate the phase deviations of two spaceborne phased arrays (SPAs) simultaneously for in-orbit satellite communication systems. Given multiple transmissions of the pilots, the phase deviations and the channel parameters are jointly estimated with a block coordinate descent algorithm. Moreover, the Cramér Rao bound (CRB) is derived, and the beam patterns are optimized to improve the performance of the over-the-air (OTA) calibration. The simulation results show that the root mean squared errors (RMSEs) of the phase estimates closely approach the corresponding CRB and the beam pattern optimization scheme is also validated for 20dB gain of SNR over the randomly generated beam patterns.
In this paper, a very compact 2 x 2 wideband beamsteering array with monocone antennas is designed and validated for NATO Band III (1350-2400 MHz) tactical communications with interference suppressing ability. The small 4 x 4 x 4 cm$^3$ size of the array enables placing it for example on vehicles with limited space. Th...
This paper presents the first experimental validation of InteRFeX, a non-uniform receive only (passive) array located at the Nova Systems Space Precinct in Peterborough, Australia, designed for space domain awareness applications. It operates over a frequency range of 70 to 300 MHz and is capable of functioning in a ra...
Bhaskar Ahuja, Thomas Crowther, S. Tingay et al.· IEEE Transactions on Radar S...· 0 citations
In this paper, we propose a framework for integrated stereo synthetic aperture radar (SAR) sensing and cooperative communication in low Earth orbit (LEO) satellite constellations. To facilitate multi-satellite cooperation under the severe Doppler dynamics of LEO channels, a unified orthogonal delay-Doppler division mul...
Yi-Chao Xu, Xiao-Ming Chen, Ming Ying et al.· IEEE International Symposium...· 0 citations
Fixed-position antenna (FPA) arrays provide limited spatial degrees of freedom for integrated radar and jamming (IRAJ), especially in multi-target scenarios. In this letter, we study a movable-antenna (MA)-enabled multi-target IRAJ system, where the transmit waveform and antenna positions are jointly optimized for dece...
Yang-Kuang-Guang-Hui Hu, Peng-Cheng Gong, Yan Xiao et al.· IEEE Signal Processing Lette...· 0 citations
Accurate antenna calibrations are a cornerstone of high-quality global navigation satellite systems (GNSS) positioning, time and frequency transfer, precise orbits, and troposphere estimates. The international GNSS service (IGS) antenna committee maintains antenna phase center corrections in the ANTEX file relying on f...
T. Kersten, Johannes Kröger, S. Schön et al.· Journal of Geodesy· 0 citations
Integrated sensing and communication (ISAC) base stations (BSs) are emerging as critical infrastructure for 6G networks, requiring advanced over-the-air (OTA) testing methodologies that can emulate dynamic, multi-target scenarios under far field (FF) conditions. However, existing testing solutions often suffer from lim...
Zhang-Zhang Jiang, Guo-Kai Jiang, Le Yu et al.· 0 citations
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