US 12,328,180 B2
Method for predicting co-channel interference of satellite-to-ground downlink under low-orbit satellite constellation
Chunyi Song, Zhoushan (CN); Yuying Xu, Zhoushan (CN); Qin Chen, Zhoushan (CN); and Zhiwei Xu, Zhoushan (CN)
Assigned to Zhejiang University, Zhejiang (CN)
Appl. No. 17/637,308
Filed by Zhejiang University, Zhejiang (CN)
PCT Filed Jun. 12, 2020, PCT No. PCT/CN2020/095824
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/036414, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 201910806319.6 (CN), filed on Aug. 29, 2019.
Prior Publication US 2022/0286199 A1, Sep. 8, 2022
Int. Cl. H04B 7/185 (2006.01); H04B 17/336 (2015.01); H04B 17/373 (2015.01); H04B 17/391 (2015.01)
CPC H04B 7/18513 (2013.01) [H04B 17/336 (2015.01); H04B 17/373 (2015.01); H04B 17/3913 (2015.01)] 7 Claims
OG exemplary drawing
 
1. A method for predicting co-channel interference (CCI) of a satellite-to-ground downlink under a low-orbit satellite constellation, comprising:
S1: obtaining CCI values in a first time period and CCI values in a second time period;
S2: constructing a CCI model based on the CCI values in the first time period and a dropout wavelet neural network (WNN);
S3: updating parameters of the CCI model;
S4: inputting the CCI values in the second time period into an updated CCI model to obtain accuracy;
S5: determining whether the accuracy is greater than an accuracy threshold; and if the accuracy is greater than the accuracy threshold, going back to “S2”; or if the accuracy is less than or equal to the accuracy threshold, outputting the updated CCI model; and
S6: predicting CCI values of each link at a next moment based on the updated CCI model.