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Efficient coherent detection of maneuvering targets based on location rotation transform and non-uniformfast Fourier transform Research Articles

Ke Jin, Tao Lai, Yan-li Qi, Jie Huang, Yong-jun Zhao,jinke_xd@outlook.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 8,   Pages 1251-1266 doi: 10.1631/FITEE.1900272

Abstract: Long-term can remarkably improve the ability of detection and motion of radar for s. However, the linear range migration, quadratic range migration (QRM), and Doppler frequency migration within the coherent processing interval seriously degrade the detection and estimation performance. Therefore, an efficient and noise-resistant method based on and is proposed. QRM is corrected by the second-order keystone transform. Using the relationship between the rotation angle and Doppler frequency, a novel phase compensation function is constructed. Motion parameters can be rapidly estimated by LRT and NuFFT. Compared with several representative algorithms, the proposed method achieves a nearly ideal detection performance with low computational cost. Finally, experiments based on measured radar data are conducted to verify the proposed algorithm.

Keywords: Coherent integration     Maneuvering target     Parameter estimation     Location rotation transform (LRT)     Non-uniformfast Fourier transform (NuFFT)    

Effect of non-uniform illumination on performance of solar thermoelectric generators

Ershuai YIN, Qiang LI, Yimin XUAN

Frontiers in Energy 2018, Volume 12, Issue 2,   Pages 239-248 doi: 10.1007/s11708-018-0533-7

Abstract: The non-uniform illumination caused by the optical concentrator may affect the performance of solar thermoelectricThe influences of non-uniform illumination on the temperature distribution, the voltage distribution,generators with 32, 18 and 8 pairs of thermocouples are compared to investigate their capability under non-uniformThe non-uniform solar illumination will weaken the capability of the TE generator, and the maximum outputReducing the number of the thermoelectric legs for non-uniform solar illumination can greatly increase

Keywords: solar thermoelectric generators     non-uniform solar illumination     performance evaluation     solar energy    

Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 129-133 doi: 10.1007/s11708-008-0029-y

Abstract: 30 subjects reported their overall thermal sensation, thermal comfort, and thermal acceptability in uniformand non-uniform conditions.The results show that these three assessment indices provide equivalent evaluations in uniform environmentssensation differs from the other two indices and cannot be used as a proper index for the evaluation of non-uniform

Keywords: thermal sensation     proper assessment     relationship     equivalent     thermal acceptability    

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 130-141 doi: 10.1007/s11465-014-0298-6

Abstract: For this purpose, the performances of envelope detection with fast Fourier transform (FFT) and continuous

Keywords: Fault detection     spline wavelet     continuous wavelet transform     fast Fourier transform    

Improved Matching Algorithms for Linear Face Class Model

Fu Yun,Zheng Nanning

Strategic Study of CAE 2005, Volume 7, Issue 2,   Pages 47-56

Abstract: A new method——Dynamic Gaussian Pyramid Analysis (DGPA), which combines Non-Uniform Sampling

Keywords: facial modeling     model matching     stochastic gradient descent     non-uniform sampling     multiresolution analysis    

Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 403-408 doi: 10.1007/s11465-006-0047-6

Abstract: NURBS (non-uniform rational B-spline) interpolation algorithms have been provided in modern CNC (computer

Keywords: NURBS parametric     rational B-spline     second-order     non-uniform rational     precision    

Sparse fast Clifford Fourier transform Article

Rui WANG, Yi-xuan ZHOU, Yan-liang JIN, Wen-ming CAO

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1131-1141 doi: 10.1631/FITEE.1500452

Abstract: The Clifford Fourier transform (CFT) can be applied to both vector and scalar fields.The sparse fast Fourier transform (sFFT) theory deals with the big data problem by using input data selectivelyThis has inspired us to create a new algorithm called sparse fast CFT (SFCFT), which can greatly improve

Keywords: Sparse fast Fourier transform (sFFT)     Clifford Fourier transform (CFT)     Sparse fast Clifford Fourier    

Control efficiency optimization and Sobol’s sensitivity indices of MTMDs design parameters for buffeting and flutter vibrations in a cable stayed bridge

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 66-89 doi: 10.1007/s11709-016-0356-8

Abstract: finite element program is utilized to run numerical simulations with the support of MATLAB codes and FastFourier Transform FFT technique.

Keywords: MTMDs     power spectral density     fast Fourier transform     minimax optimization technique     Sobol’s sensitivity    

A novel energy-efficient ICI cancellation technique for bandwidth improvements through cyclic prefix reuse in an OFDM system Article

Sandeep SAROWA, Harmanjeet SINGH, Sunil AGRAWAL, B. S. SOHI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1892-1899 doi: 10.1631/FITEE.1601333

Abstract: Orthogonal frequency division multiplexing (OFDM), a very promising technique that is leading the evolution in wireless mobile communication to sideline the bandwidth scarcity issue in spectrum allocation, is severely affected by the undesirable effects of the frequency offset error, which generates inter carrier interference (ICI) due to the Doppler shift and local oscillator frequency synchronization errors. There are many ICI cancellation techniques available in the literature, such as self-cancellation (SC), maximum likelihood estimation (MLE), and windowing, but they present a tradeoff between bandwidth redundancy and system complexity. In this study, a new energy-efficient, bandwidth-effective technique is proposed to mitigate ICI through cyclic prefix (CP) reuse at the receiver end. Unlike SC and MLE where the whole OFDM symbol data is transmitted in duplicate to create redundancy at the transmitter end, the proposed technique uses the CP data (which is only 20% of the total symbol bandwidth) to estimate the channel, and it produces similar results with a huge bandwidth saving. The simulation results show that the proposed technique has a significant improvement in error performance, and a comparative analysis demonstrates the substantial improvement in energy efficiency with high bandwidth gain. Therefore, it outperforms the legacy ICI cancellation schemes under consideration.

Keywords: Orthogonal frequency division multiplexing (OFDM)     Fast Fourier transform (FFT)     Cyclic prefix (CP)    

Highly uniform Ni particles with phosphorus and adjacent defects catalyze 1,5-dinitronaphthalene hydrogenation

Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 998-1007 doi: 10.1007/s11705-020-1994-x

Abstract: activated carbon support, with defects and heteroatoms (N,P-ACs) by nitrogen and phosphorus doping to load non-nobledefects formed by heteroatom doping are beneficial to nickel anchoring and deposition to form highly uniform

Keywords: nitrogen and phosphorus doping     non-noble nickel catalyst     aromatic compounds hydrogenation    

An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 511-518 doi: 10.1631/FITEE.1400269

Abstract: In the proposed algorithm, reduction in computational complexity is achieved by utilizing fast Fourier

Keywords: Computational complexity     Coding gain     Fast Fourier transform (FFT)     Low-density parity-check (LDPC)    

A filtering-based bridge weigh-in-motion system on a continuous multi-girder bridge considering the influence lines of different lanes

Hanli WU, Hua ZHAO, Jenny LIU, Zhentao HU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1232-1246 doi: 10.1007/s11709-020-0653-0

Abstract: The fast Fourier transform (FFT) method, which can significantly purify the collected structural responses

Keywords: bridge weigh-in-motion     continuous bridge     fast Fourier transform     influence line     axle weight calculation    

Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0683-5

Abstract: effectively remove the critical issue induced by one-node connected hinges and simultaneously maintain uniformrepresentation to construct the eroded, intermediate, and dilated density distribution functions by non-uniform

Keywords: piezoelectric actuator     isogeometric topology optimization     uniform manufacturability     robust formulation    

Nodal, zonal, or uniform electricity pricing: how to deal with network congestion

Martin WEIBELZAHL

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 210-232 doi: 10.1007/s11708-017-0460-z

Abstract: ., nodal, zonal, and uniform electricity pricing, are surveyed.

Keywords: nodal pricing     zonal pricing     uniform pricing     competitive electricity markets     welfare maximization     redispatch    

Controlled synthesis of uniform silver nanowires with high aspect ratios in aqueous solutions of gemini

XU Jian, LIU Weijun, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 221-227 doi: 10.1007/s11705-007-0040-6

Abstract: dibromide (16-3-16), the growth of silver could be directed into a highly anisotropic mode to form uniformsilver nanowires, indicating the formation of a highly pure phase, good crystallinity, as well as a uniform

Keywords: solution-phase     photoelectron spectroscopy     16-3-16     surfactant     transmission    

Title Author Date Type Operation

Efficient coherent detection of maneuvering targets based on location rotation transform and non-uniformfast Fourier transform

Ke Jin, Tao Lai, Yan-li Qi, Jie Huang, Yong-jun Zhao,jinke_xd@outlook.com

Journal Article

Effect of non-uniform illumination on performance of solar thermoelectric generators

Ershuai YIN, Qiang LI, Yimin XUAN

Journal Article

Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Journal Article

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Journal Article

Improved Matching Algorithms for Linear Face Class Model

Fu Yun,Zheng Nanning

Journal Article

Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Journal Article

Sparse fast Clifford Fourier transform

Rui WANG, Yi-xuan ZHOU, Yan-liang JIN, Wen-ming CAO

Journal Article

Control efficiency optimization and Sobol’s sensitivity indices of MTMDs design parameters for buffeting and flutter vibrations in a cable stayed bridge

Nazim Abdul NARIMAN

Journal Article

A novel energy-efficient ICI cancellation technique for bandwidth improvements through cyclic prefix reuse in an OFDM system

Sandeep SAROWA, Harmanjeet SINGH, Sunil AGRAWAL, B. S. SOHI

Journal Article

Highly uniform Ni particles with phosphorus and adjacent defects catalyze 1,5-dinitronaphthalene hydrogenation

Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo

Journal Article

An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Journal Article

A filtering-based bridge weigh-in-motion system on a continuous multi-girder bridge considering the influence lines of different lanes

Hanli WU, Hua ZHAO, Jenny LIU, Zhentao HU

Journal Article

Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability

Journal Article

Nodal, zonal, or uniform electricity pricing: how to deal with network congestion

Martin WEIBELZAHL

Journal Article

Controlled synthesis of uniform silver nanowires with high aspect ratios in aqueous solutions of gemini

XU Jian, LIU Weijun, LIU Honglai, HU Ying

Journal Article