Research Article
Phased Array Networking TT&C Relay Terminal with Interference Suppression Technology
@INPROCEEDINGS{10.1007/978-3-031-78806-2_2, author={Liu Liu and Tian Liu and Yang Li and Wensheng Pan and Yan Zhang}, title={Phased Array Networking TT\&C Relay Terminal with Interference Suppression Technology}, proceedings={Smart Grid and Innovative Frontiers in Telecommunications. 8th EAI International Conference, EAI SmartGIFT 2024a, Santa Clara, United States, March 23-24, 2024, Proceedings}, proceedings_a={SMARTGIFT}, year={2025}, month={1}, keywords={Phased array network measurement and control relay terminal full-duplex radio frequency interference suppression}, doi={10.1007/978-3-031-78806-2_2} }- Liu Liu
Tian Liu
Yang Li
Wensheng Pan
Yan Zhang
Year: 2025
Phased Array Networking TT&C Relay Terminal with Interference Suppression Technology
SMARTGIFT
Springer
DOI: 10.1007/978-3-031-78806-2_2
Abstract
This article aims at the interference suppression problem of full-duplex relay terminals in the telemetry, tracking and command (TT&C) network system, analyzes the interference signal characteristics and the delay expansion of the self-interference signal when the transmitting and receiving antenna arrays are separated, and analyzes the interference in sub-arrays of different sizes. To solve the signal delay expansion, a kind of interference suppression method is proposed after the combination of array antenna reception beamforming. This method expands the delay range according to the layout of the array and the delay expansion of interference signals in sub-arrays of different sizes. All array elements are equivalent to one array element, which greatly reduces the complexity of radio frequency suppression. Theoretical analysis and simulation experimental results show that this method can effectively suppress interference signals. For the scenario of 256 array element transmitting front and 256 array element receiving front, the simulation compared the interference suppression performance under different tap numbers. The simulation results show that using 16 taps can suppress interference with a carrier frequency of 26.8 GHz and a bandwidth of 200 MHz. The signal suppression capability is greater than 47 dB.
