Accès ouvert
2025
article
OpenAlex
Lele Li, YanHong Dong, Shu Liu, DU Xing-min et autres
Abstract Interfacial solar evaporation has emerged as an innovative water purification strategy due to its environmental friendliness, high efficiency, adaptability to various water sources. This study introduces a universal strategy for foam‐based solar evaporators, leveraging unique advantages of hydrogel materials to effectively …
cn
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
Jiahui Yu, Chenxi Wang, Shu Liu, Shuo Yang et autres
cn
(code pays fourni par la source)
2009
article
OpenAlex
DU Xing-min
A method for estimating the parameters of unknown frequency-hopping(FH) signal is proposed based on Wavelet transform.Considering Wavelet transform’s perfect localizing characteristic in time-frequency domain and effectiveness in detecting local singularity in signals,the method can estimate the parameters of FH signals such as …
cn
(code pays fourni par la source)
2009
article
OpenAlex
Zhang Xi, Wang Xing, DU Xing-min
2008
article
OpenAlex
Hang Xu Yang, Nan Zhang, DU Xing-min
This paper studies the clock acquisition algorithm for timing recovery for wavelet-based multirate system based on the characteristics of correlation of wavelet function and scaling function.we proposed two kinds of clock acquisition algorithm by using a new improved S-curve.These algorithms utilize redundancy …
2008
article
OpenAlex
DU Xing-min
Based on transmitting power and transmitting bits and BER being limited, an adaptive modulation algorithm of irregular and regular LDPC coding in frequency domain MIMO-OFDM system was proposed. By simulating, a comparison among the performance of irregular regular LDPC coding and un-coding …
cn
(code pays fourni par la source)
2008
article
OpenAlex
DU Xing-min
In this paper,expression and simplification of T-TCM decoding algorithm in Log domain is investigated for AWGN.The generation and utilization of extrinsic information is deeply analyzed during the iterative decoding process,and some simplification for branch metric calculation is presented in detail with the …
cn
(code pays fourni par la source)
2007
article
OpenAlex
DU Xing-min
Eliminating short cycles has been an important measure to improve Low Density Parity-Check(LDPC) codes performance,based on regular (n,2,k) LDPC codes without short cycles,a constructing method of practical regular(n,3,k) LDPC codes without cycle 4,6 and 8 is proposed.The simulation results over AWGN channels …
cn
(code pays fourni par la source)
2007
article
OpenAlex
Ru Le, DU Xing-min, BI Du-yan
In this paper,we have studied the error correction code technology of multimedia transmit standard. Based on the characteristics of the frequency-hop WLAN channel,a novel LDPC+RS concatenated coding scheme for mobile multimedia transmit based on frequency-hop WLAN is proposed.Simulation results show that this …
2007
article
OpenAlex
Hang Yang, DU Xing-min
Broadband communications for Low Voltage Power Line(LV-BPL) Internet access system with impulsive noise using digital fountain concatenated Coding Orthogonal Wavelet Packet Modulation(OWPM) is considered in this paper.In very low SNR,OWPM operates improved performance to OFDM for the stable orthogonal wavelet bases.And concatenated …
cn
(code pays fourni par la source)
2007
article
OpenAlex
Hang Xu Yang, DU Xing-min
This paper proposes an improved PAPR control algorithm based on SimuLink for wavelet-based muhicarrier system of IEEE802.16.3c criterion.This algorithm takes off puncture and interposing,and throws away the appended forward channel to transmit the synchonization flag.So the improved algorithm can increase the channel …
2006
conference-paper
OpenAlex
Le Ru, DU Xing-min, BI Du-yan, Hang Yang
In this paper, we introduce packet low-density parity-check (packet-LDPC) code for frequency-hop packet radio networks. We propose one concatenated coded architecture of employding an inner RS code and a packet-LDPC code as the outer code. Then we present simulation results of the …