Research Article
Amplitude Blind Estimation of Co-channel Time-Frequency Overlapped Signals
@INPROCEEDINGS{10.1007/978-3-031-04245-4_41, author={Mingqian Liu and Zonghui Lu and Qiqi Ren and Shuo Chen}, title={Amplitude Blind Estimation of Co-channel Time-Frequency Overlapped Signals}, proceedings={6GN for Future Wireless Networks. 4th EAI International Conference, 6GN 2021, Huizhou, China, October 30--31, 2021, Proceedings}, proceedings_a={6GN}, year={2022}, month={5}, keywords={Amplitude estimation Co-channel signal Cyclic cumulants Cyclic spectrum Time-frequency overlapped signal}, doi={10.1007/978-3-031-04245-4_41} }- Mingqian Liu
Zonghui Lu
Qiqi Ren
Shuo Chen
Year: 2022
Amplitude Blind Estimation of Co-channel Time-Frequency Overlapped Signals
6GN
Springer
DOI: 10.1007/978-3-031-04245-4_41
Abstract
With the rapid development of wireless communication technology, modulation signals are more and more intensive in the same frequency. Based on the background of non-cooperative communication system, the research on blind estimation of time domain parameters of time-frequency overlapped signals is conducted. An amplitude estimation method of time frequency overlapped signal over single channel based on forth order cyclic cumulants is proposed. This method employs the fourth-order cyclic cumulants amplitude spectrum of the overlapped signal to estimate the amplitude at the cycle frequency of the respective signal symbol rate, thereby obtaining the amplitude estimation value of each signal component. Simulation results show that the proposed blind amplitude estimation method can achieve better estimation performance in low SNR conditions. Compared with the existing estimation method, the proposed method has better estimation performance.
