Enhancing ion conductance and controlling transport pathway in organic electrolyte could be used to modulate ionic kinetics to handle signals. In a Pt/Poly(3-hexylthiophene-2,5-diyl)/Polyethylene?Li CF3SO3/Pt hetero-j...Enhancing ion conductance and controlling transport pathway in organic electrolyte could be used to modulate ionic kinetics to handle signals. In a Pt/Poly(3-hexylthiophene-2,5-diyl)/Polyethylene?Li CF3SO3/Pt hetero-junction, the electrolyte layer handled at high temperature showed nano-fiber microstructures accompanied with greatly improved salt solubility. Ions with high mobility were confined in the nano-fibrous channels leading to the semiconducting polymer layer,which is favorable for modulating dynamic doping at the semiconducting polymer/electrolyte interface by pulse frequency.Such a device realized synaptic-like frequency selectivity, i.e., depression at low frequency stimulation but potentiation at high-frequency stimulation.展开更多
针对高动态场景下多普勒频移问题和缺少定量分析,该文以研究正交调制的多普勒频移响应机理为基点,对多普勒频移对正交调制系统的影响进行了研究,从星座图判决区间的角度推导了多进制数字相位调制信号和多进制正交幅度调制信号在多普勒...针对高动态场景下多普勒频移问题和缺少定量分析,该文以研究正交调制的多普勒频移响应机理为基点,对多普勒频移对正交调制系统的影响进行了研究,从星座图判决区间的角度推导了多进制数字相位调制信号和多进制正交幅度调制信号在多普勒频移下的误符号率公式。理论分析和实验结果表明:多普勒频移对正交调制的影响是星座的旋转,误符号率公式推导结果与实际误符号率基本相同,系统的性能随着调制指数和运动速度的增加而下降。在信噪比为20 d B时,多进制数字相位调制信号的抗多普勒频移能力要强于多进制正交幅度调制信号。展开更多
基金supported by National Natural Science foundation of China (Grant Nos. 51371103 and 51231004)National Basic Research Program of China (Grant No. 2010CB832905)+1 种基金National Hi-tech (R&D) Project of China (Grant Nos. 2012AA03A706, 2013AA030801)the Research Project of Chinese Ministry of Education (No. 113007A)
文摘Enhancing ion conductance and controlling transport pathway in organic electrolyte could be used to modulate ionic kinetics to handle signals. In a Pt/Poly(3-hexylthiophene-2,5-diyl)/Polyethylene?Li CF3SO3/Pt hetero-junction, the electrolyte layer handled at high temperature showed nano-fiber microstructures accompanied with greatly improved salt solubility. Ions with high mobility were confined in the nano-fibrous channels leading to the semiconducting polymer layer,which is favorable for modulating dynamic doping at the semiconducting polymer/electrolyte interface by pulse frequency.Such a device realized synaptic-like frequency selectivity, i.e., depression at low frequency stimulation but potentiation at high-frequency stimulation.
文摘针对高动态场景下多普勒频移问题和缺少定量分析,该文以研究正交调制的多普勒频移响应机理为基点,对多普勒频移对正交调制系统的影响进行了研究,从星座图判决区间的角度推导了多进制数字相位调制信号和多进制正交幅度调制信号在多普勒频移下的误符号率公式。理论分析和实验结果表明:多普勒频移对正交调制的影响是星座的旋转,误符号率公式推导结果与实际误符号率基本相同,系统的性能随着调制指数和运动速度的增加而下降。在信噪比为20 d B时,多进制数字相位调制信号的抗多普勒频移能力要强于多进制正交幅度调制信号。
