The real-time information of the distant ionosphere can be acquired by using the Wuhan ionospheric oblique backscattering sounding system(WIOBSS),which adopts a discontinuous wave mechanism.After the characteristics o...The real-time information of the distant ionosphere can be acquired by using the Wuhan ionospheric oblique backscattering sounding system(WIOBSS),which adopts a discontinuous wave mechanism.After the characteristics of the ionospheric echo Doppler spectra were analyzed,the signal preprocessing was developed in this paper,which aimed at improving the Doppler spectra.The results indicate that the preprocessing not only makes the system acquire a higher ability of target detection but also suppresses the radio frequency interference by 6-7 dB.展开更多
The rapid development of neuromorphic computing has led to widespread investigation of artificial synapses.These synapses can perform parallel in-memory computing functions while transmitting signals,enabling low-ener...The rapid development of neuromorphic computing has led to widespread investigation of artificial synapses.These synapses can perform parallel in-memory computing functions while transmitting signals,enabling low-energy and fast artificial intelligence.Robots are the most ideal endpoint for the application of artificial intelligence.In the human nervous system,there are different types of synapses for sensory input,allowing for signal preprocessing at the receiving end.Therefore,the development of anthropomorphic intelligent robots requires not only an artificial intelligence system as the brain but also the combination of multimodal artificial synapses for multisensory sensing,including visual,tactile,olfactory,auditory,and taste.This article reviews the working mechanisms of artificial synapses with different stimulation and response modalities,and presents their use in various neuromorphic tasks.We aim to provide researchers in this frontier field with a comprehensive understanding of multimodal artificial synapses.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.40474066).
文摘The real-time information of the distant ionosphere can be acquired by using the Wuhan ionospheric oblique backscattering sounding system(WIOBSS),which adopts a discontinuous wave mechanism.After the characteristics of the ionospheric echo Doppler spectra were analyzed,the signal preprocessing was developed in this paper,which aimed at improving the Doppler spectra.The results indicate that the preprocessing not only makes the system acquire a higher ability of target detection but also suppresses the radio frequency interference by 6-7 dB.
基金supported by the Science and Technology Commission of Shanghai Municipality(grant no.21DZ1100500)the Shanghai Municipal Science and Technology Major Project,the Shanghai Frontiers Science Center Program(2021-2025 No.20)the Shanghai Sailing Program(23YF1429500).
文摘The rapid development of neuromorphic computing has led to widespread investigation of artificial synapses.These synapses can perform parallel in-memory computing functions while transmitting signals,enabling low-energy and fast artificial intelligence.Robots are the most ideal endpoint for the application of artificial intelligence.In the human nervous system,there are different types of synapses for sensory input,allowing for signal preprocessing at the receiving end.Therefore,the development of anthropomorphic intelligent robots requires not only an artificial intelligence system as the brain but also the combination of multimodal artificial synapses for multisensory sensing,including visual,tactile,olfactory,auditory,and taste.This article reviews the working mechanisms of artificial synapses with different stimulation and response modalities,and presents their use in various neuromorphic tasks.We aim to provide researchers in this frontier field with a comprehensive understanding of multimodal artificial synapses.
