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Jiancheng Zhang
Xidian University
Fourier transformAutomatic target recognitionElectronic engineeringMathematicsRadar
10Publications
5H-index
92Citations
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Publications 12
Newest
#1Jiancheng ZhangH-Index: 5
#2Yanyan Li (Northwest University (United States))
Last. Xuehui HeH-Index: 3
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This paper proposes an integrated time-frequency rate distribution (TFRD) technique, i.e., coherently integrated trilinear autocorrelation function (CITAF), for the detection and parameter estimation of quadratic frequency modulated (QFM) signal embedded in white Gaussian noise. The basic idea is to design a trilinear autocorrelation function (TAF) enabling a coherent integration of the signal energy in both of the time and lag-time domains. Theoretical analysis and numerical simulations show th...
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#1Jiancheng Zhang (Xidian University)H-Index: 5
#2Tao Su (Xidian University)H-Index: 4
Last. Xuehui He (Xidian University)H-Index: 3
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A novel algorithm for parameter estimation of cubic frequency modulated (CFM) signals, known as a modified integrated cubic phase function high-order ambiguity function (MICPF-HAF), is introduced. The MICPF-HAF demodulates CFM signals to quadratic FM (QFM) signals via phase differentiation, and then the MICPF is applied to realise the parameter estimation of QFM signals. The analyses and simulations show that the proposed MICPF-HAF achieves a great improvement in anti-noise performance in compar...
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#1Zhiyong NiuH-Index: 1
#2Jibin ZhengH-Index: 13
Last. Jiancheng ZhangH-Index: 5
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7 CitationsSource
#1Jiancheng Zhang (Xidian University)H-Index: 5
#2Tao Su (Xidian University)H-Index: 11
Last. Xuehui He (Xidian University)H-Index: 3
view all 4 authors...
The detection performance of radar maneuvering target with jerk motion is affected by the range migration (RM) and Doppler frequency migration (DFM). To address these problems, a fast algorithm without searching target's motion parameters is proposed. In this algorithm, the second-order keystone transform is first applied to eliminate the quadratic coupling between the range frequency and slow time. Then, by employing a new defined symmetric autocorrelation function, scaled Fourier transform, an...
18 CitationsSource
#1Jiancheng Zhang (Xidian University)H-Index: 5
#2Tao Su (Xidian University)H-Index: 11
Last. Jibin Zheng (Xidian University)H-Index: 13
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Long-time coherent integration is an effective means to improve the radar detection ability of high-speed maneuvering targets with jerk motion. However, the range migration (RM) and Doppler frequency migration (DFM) have a great impact on the integration performance. To overcome these problems, a unique method, called the second-order keystone transform modified integrated cubic phase function (SKT-MICPF), is proposed. In this method, the velocity compensation and SKT are jointly employed to cor...
4 CitationsSource
#1Qian Lv (Xidian University)H-Index: 2
#2Tao Su (Xidian University)H-Index: 11
Last. Jiancheng Zhang (Xidian University)H-Index: 5
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Inverse synthetic aperture radar (ISAR) can achieve high-resolution two-dimensional images of maneuvering targets. However, due to the indeterminate relative motion between radar and target, ISAR imaging does not provide the three-dimensional (3-D) position information of a target and suffers from great difficulty in target recognition. To tackle this issue, a 3-D interferometric ISAR (InISAR) imaging algorithm based on the joint cross modified Wigner-Ville distribution (MWVD) is presented to fo...
4 CitationsSource
#1Xu Zhang (University of Bedfordshire)H-Index: 4
#2Enjie Liu (University of Bedfordshire)H-Index: 11
Last. Jiancheng Zhang (Xidian University)H-Index: 5
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Physical cell identity (PCI) is used to identify each cell. However, with the introduction of femtocells, 8 bytes allocation for PCI cannot accommodate a large number of femtocells. The current solution in 3GPP Release 9 is to use cell global identity associated with PCI to resolve this problem. However, this solution may incur higher inbound handover failure. A dynamic PCI assignment based on cell activity level prediction is proposed. The system level simulation showed that the approach outper...
5 CitationsSource
#1Jiancheng Zhang (Xidian University)H-Index: 5
#2Liang Zhang (Xidian University)H-Index: 19
Last. Nan Liu (Xidian University)H-Index: 5
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A novel signal subspace reconstruction method for multiple-input multiple-output (MIMO) radar is proposed. The developed method realises signal subspace resconstruction by the eigendecomposition of two low dimension matrixes. It provides lower computational complexity and fewer training samples compared to the full DOF method. Simulation results are given to demonstrate the effectiveness of the method.
5 CitationsSource
#1Nan Liu (Xidian University)H-Index: 5
#2Liang Zhang (Xidian University)H-Index: 19
Last. Dong Shen (Xidian University)H-Index: 2
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A novel method employing an ESPRIT and Kalman filter is proposed for the one-dimensional direction finding problem of MIMO radar. The rotational invariance among the multiple equivalent virtual subarrays of MIMO radar is exploited to derive multiple estimates of the direction of each target through ESPRIT. The multiple estimates of each target are fused through a Kalman filter to refine the accuracy of estimation. Numerical examples demonstrate the effectiveness of the proposed method.
14 CitationsSource
#1Jiancheng Zhang (Xidian University)H-Index: 5
#2Xiao-Miao Zhang (Xidian University)H-Index: 5
Last. H. Jin (Xidian University)H-Index: 1
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A dual-band bidirectional high gain dipole array antenna for WLAN (2.4/5.8 GHz) applications is proposed and analysed. The array antenna is composed of four elements. Each element is a double-sided printed dipole which is fed with a balanced twin transmission line. Measured results agree very well with simulation results. According to the measured results, the bandwidth with a VSWR less than two is about 400 and 1100 MHz in the two bands, respectively. Good shaped patterns are also achieved. The...
33 CitationsSource
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