1, "Research on Orthogonal Frequency Division Multiplexing System and Key Technologies Based on Mixed Signal Spread Spectrum Technology" (Basic Scientific Research Project of Central University), the person in charge;
2. "Research on Key Technologies of Multi-band Ultra-wideband High-speed Wireless Communication" (key project of Tianjin Natural Science Foundation), participant;
3. "Research on Multi-band UWB-OFDM System and Key Technologies Based on Novel Sigma-δ Modulation" (General Project of National Natural Science Foundation), participant.
Write papers, monographs, teaching materials, etc. : (1) Zhao,,,, "A New Sigma-Delta Converter Based on Time Domain Interpolation Extraction in UWB System", Journal of Tianjin University (Natural Science Edition) (EI), 20 12, Vol.45, No.7, No.6465438.
(2) Zhao,, "Methods to reduce the peak power of OFDM signals and improve the signal-to-noise ratio based on spread spectrum technology", System Engineering and Electronics (EI), 20 12, Volume 34,No. 10, PP.2147-215.
(3) Zhao, Ge Lijun, Jin Yuan, Fu, "Research on UWB OFDM Signal Conversion", 20 10 IEEE International Conference on Intelligent Computing and Intelligent Systems, Xiamen, 2010;
(4) Zhao, Ge Lijun, Jin Yuanguang, Fu, "A Multi-bit Sigma-Delta Converter for UWB OFDM Systems", 20 10 International Symposium on Signals, Systems and Electronics, Nanjing, 2017-20,201.
(5) Zhao, Ge Lijun,,, "Research on the Application of Golay Complementary Sequences in OFDM Systems", the 1 th International Conference on Information Science and Engineering, Nanjing, 20091February18-20;
(6) Zhao, Ge Lijun, Jin Yuanguang, "Research and Simulation of Adaptive High Bandwidth Efficiency Wireless Communication System", Proceedings of IET International Communication Conference on Wireless, Mobile and Computing in 2009, Shanghai, 20091February 7-9;
(7), Zhao,,,,, "Parallel Sigma Delta Converter for MB-OFDM-UWB Transceiver", Journal of Computing Information System, 20 12 1 month, Volume 8,No. 1 issue,No.199.
(8),, Zhao,,,,, "Nyquist rate wideband sigma-delta modulator for UWB-OFDM system", Journal of Information and Computing Science, 20 1 1, Vol.8, No.31-283.