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| 1 | A high-precision phase-derived range and velocity measurement method based on synthetic wideband pulse Doppler radar显示文摘Development of radar technology needs to address the two-dimensional high resolution of range and velocity simultaneously for high-speed targets. Taking advantage of the superior coherent performance of synthetic wideband pulse Doppler radar, this paper elaborates the principles of phase-derived range and velocity measurements. Moreover, this paper explores the key technologies of unwrapping phase ambiguity, and discusses the phase unwrapping strategy at a low signal-to-noise ratio(SNR). The proposed method can be applied to the conditions of low SNR and has comparatively strong practicality in engineering. Both the ejection ball and civil aircraft experiments have validated the correctness and feasibility of the proposed method. In particular,the experimental results reveal that the accuracy of phase-derived range and velocity measurement has reached a level of submillimeter or millimeter and centimeter/second or submillimeter/second, respectively. | Huayu FAN Lixiang REN Teng LONG Erke MAO | 2017 | Science China(Information Sciences)2017，60，8： | 6 |
| 2 | MIMO-SAR waveforms separation based on virtual polarization filter显示文摘The unwanted coupling exists inevitably among multiple orthogonal waveforms in a same frequency area for multiple-input and multiple-output synthetic aperture radar(MIMO-SAR). In this paper, a new polarized MIMO-SAR model is established with two transmitting antennas and multiple receiving antennas at first. Then, a virtual polarization filter(VPF) is proposed to separate superposed returns caused by multiple transmitted waveforms based on detection on the polarized parameters via particle swarm optimizer(PSO).Compared with the conventional matched filter to separate the orthogonal waveforms, it is shown that the coupling noises can be significantly suppressed by the proposed VPF-based method and the orthogonality is not necessary among different transmitting waveforms. Finally, experimental data experiments are also provided to demonstrate the effectiveness of the proposed method. | MENG CangZhen XU Jia XIA Xiang-Gen LIU Feng LONG Teng MAO ErKe YANG Jian PENG YingNing | 2015 | Science China(Information Sciences)2015，58，4： | 4 |
| 3 | MMSEbased MDL method for robust estimation of number of sources without eigendecomposition显示文摘 | HUANG Lei LONG Teng MAO Erke So H C | | 0，，10： | 1 |
| 4 | MMSEbased MDL method for accurate source number estimation显示文摘 | HUANG Lei LONG Teng MAO Erke So H C | | 0，，09： | 1 |
| 5 | An Algorithm of Adaptive Fuzzy Enhancement of Infrared Image Sequence for Low SNR显示文摘 | Zhao Baojun Han Yueqiu Mao Erke | 2002 | Chinese Journal of Electronics2002，11，2： | 1 |
| 6 | MMSE-based MDL method for accurate source number estimation显示文摘 | Huang Lei Long Teng Mao Erke | 2009 | IEEE Signal Processing Letters2009，16，9： | 1 |
| 7 | MMSE-Based MDL Method for Robust Estimation of Number of Sources without Eigendecomposition 显示文摘 | Huang Lei Long Teng Mao Erke | 2009 | IEEE Transactions on Signal Processing2009，57，10： | 1 |
| 8 | Recursion Subspace-based Method for Bearing Estimation: A Comparative Study显示文摘 | HUANG Lei WU Siliang MAO Erke | 2010 | Chinese Journal of Electronics2010，19，3： | 0 |
| 9 | Polarization-space joint mainlobe jamming countermeasure technique based on divided dimensions显示文摘In order to solve the problem that the traditional space jamming countermeasure cannot deal with the mainlobe self-protecting jammings,a polarization-space joint mainlobe jamming countermeasure technique based on divided dimensions is proposed.Specifically,the digital beam of each row and column is firstly formed by using dual polarization digital receiving in multi-channel.Then,the polarization-space joint cancellation in both azimuth and elevation dimensions is carried out based on the polarization-space joint difference between the target echo and the jamming,as well as the divided dimension feature of the row and column beams.Finally,the sum and difference beams of the full array in the elevation or azimuth dimension are formed by the beams after jamming cancelling,and the monopulse angle measurement is further employed to obtain target angles.The effectiveness of the proposed technique is verified by simulations,indicating that the self-protecting jamming and multiple mainlobe following jammings can be both cancelled simultaneously with the angle measurement unchanged. | SHA Minghui MAO Erke ZHANG Kang | 2022 | Journal of Systems Engineering and Electronics2022，33，3： | 0 |
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