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| 1 | A novel STAP method for the detection of fast air moving targets from high speed platform显示文摘Space-time adaptive processing (STAP) is an effective method for detecting moving target in airborne/spaceborne radar.However,the detection of fast air moving targets from high speed platform is challenged by the range walk of both the clutter and moving targets.It is well known that keystone formatting can be used to compensate for the range walk of multiple moving targets simultaneously without using the knowledge of the motion parameters.However,in the presence of serious Doppler ambiguity of fast air moving targets,distribution of the clutter will be affected by the keystone formatting matched to the ambiguity number of targets,and as a result the STAP performance will degrade.In this paper,a novel STAP method is proposed for the detection of fast air moving targets from high speed platform,which can deal with the range walk of both clutter and targets.Effectiveness of the new method is verified via simulation examples. | WU RenBiao JIA QiongQiong LI Hai | 2012 | Science China(Information Sciences)2012，55，6： | 6 |
| 2 | Power minimization with derivative constraints for high dynamic GPS interference suppression显示文摘In this paper,a novel adaptive interference suppression algorithm is proposed for high dynamic GPS (global positioning system) receiver.The new method incorporates derivative constraints on the inter-ference DOA (direction of arrival) into power minimization approach,which could broaden the width of nulls in the interferences directions and adapt to the rapid change of the interference directions.Compared with the traditional wide nulling algorithm based on the derivative constraints,the new method does not have to know or estimate the DOAs of the desired signal and the interference.The new method is firstly discussed in the context of spatial processing,and then extended to space-time adaptive processing to mitigate wideband diffusive multipath interference.Effectiveness of the new method is verified via simulation examples. | WU RenBiao LI Chan LU Dan | 2012 | Science China(Information Sciences)2012，55，4： | 4 |
| 3 | Redox evolution of western Tianshan subduction zone and its effect on deep carbon cycle显示文摘Knowing the phase relations of carbon-bearing phases at high-pressure(HP) and high-temperature(HT) condition is essential for understanding the deep carbon cycle in the subduction zones.In particular,the phase relation of carbon-bearing phases is also strongly influenced by redox condition of subduction zones,which is poorly explored.Here we summarized the phase relations of carbon-bearing phases(calcite,aragonite,dolomite,magnesite,graphite,hydrocarbon) in HP metamorphic rocks(marble,metapelite,eclogite) from the Western Tianshan subduction zone and high-pressure experiments.During prograde progress of subduction,carbonates in altered oceanic crust change from Ca-carbonate(calcite) to Ca,Mg-carbonate(dolomite),then finally to Mgcarbonate(magnesite) via Mg-Ca cation exchange reaction between silicate and carbonate,while calcite in sedimentary calcareous ooze on oceanic crust directly transfers to high-pressure aragonite in marble or amorphous CaCO3 in subduction zones.Redox evolution also plays a significant effect on the carbon speciation in the Western Tianshan subduction zone.The prograde oxygen fugacity of the Western Tianshan subduction zone was constrained by mineral assemblage of garnet-omphacite from FMQ-1.9 to FMQ-2.5 at its metamorphic peak(maximum P-T) conditions.In comparison with redox conditions of other subduction zones,Western Tianshan has the lowest oxygen fugacity.Graphite and light hydrocarbon inclusions were ubiqutously identified in Western Tianshan HP metamorphic rocks and speculated to be formed from reduction of Fe-carbonate at low redox condition,which is also confirmed by high-pressure experimental simulation.Based on petrological observation and high-pressure simulation,a polarized redox model of reducing slab but oxidizing mantle wedge in subduction zone is proposed,and its effect on deep carbon cycle in subduction zones is further discussed. | Renbiao Tao Lijuan Zhang Lifei Zhang | 2020 | Geoscience Frontiers2020，11，3： | 3 |
| 4 | High-pressure experimental verification of rutile-ilmenite oxybarometer: Implications for the redox state of the subduction zone显示文摘The more oxidized mantle peridotites above subducting slabs than stable continental areas have been attributed to the infiltration of some oxidizing fluids released from the subducting slabs. However, knowledge for the redox states of the slabs itself is very limited. Until now, few oxybarometers can be directly used to constrain the redox states of the subducting slabs.The rutile-ilmenite oxybarometer was proposed and successfully applied to constrain the oxygen fugacity of mantle assemblages.However, its application to rocks equilibrated at crustal P-T conditions has been hampered by some uncertainties in an early solid solution model of ilmenite. With a newly-released solid solution model for the ilmenite, we have conducted high-P experiments(at 3 and 5 GPa, and 900–1300°C) to test the accuracy of this oxybarometer. The experiments were performed with their oxygen fugacities controlled by the CCO buffer(i.e., C+O_2=CO_2). We demonstrated that the oxygen fugacities calculated for our high-P experimental products by using the rutile-ilmenite oxybarometer were in excellent agreement with the fO_2 dictated by the CCO buffer, suggesting a wide applicability of this oxybarometer to crust rocks. As examples, the rutile-ilmenite oxybarometer has been used to constrain the oxygen fugacities of some metamorphic rocks such as eclogite, granulite and amphibolite usually observed from the subduction zones. | TAO RenBiao ZHANG LiFei Vincenzo STAGNO CHU Xu LIU Xi | 2017 | Science China Earth Sciences2017，60，10： | 2 |
| 5 | Time-delay- and time-reversal-based robust capon beamformers for ultrasound imaging 显示文摘 | Wang Zhisong Li Jian Wu Renbiao | 2005 | IEEE Transactions on Medical Imaging2005，24，10： | 1 |
| 6 | An efficient algorithm for time delay estimation 显示文摘 | Li Jian Wu Renbiao | 1998 | IEEE Transactions on Signal Processing1998，46，8： | 1 |
| 7 | Delay and Doppler scale estimation of multiple moving targets via DS-WRELAX显示文摘 | Su Zhigang Wu Renbiao | 2000 | Electronics Letters2000，36，9： | 1 |
| 8 | Motion Compensation for UAV SAR Based on Raw Radar Data显示文摘 | Xing Mengdao Jiang Xiuwei Wu Renbiao | 2009 | IEEE Trans on Geoscience and Remote Sensing2009，47，8： | 1 |
| 9 | Migration Through Resolution Cell Compensation in ISAR Imaging显示文摘 | Xing Mengdao Wu Renbiao Lan Jinqiao | 2004 | IEEE Geosci Remote Sens Lett2004，1，2： | 1 |
| 10 | Time-delay- and time-reversal-based robust capon beamformers for ultrasound imaging 显示文摘 | Wang Zhisong Li Jian Wu Renbiao | 2005 | IEEE Transactions on Medical Imaging2005，24，10： | 1 |
| 11 | Propagation velocity uncertainty on GPR SAR processing显示文摘 | Renbiao Wu Kunlong Gu Jian Li Marshall Bradley James Haber-sat George Maksymonko | | 0，，03： | 1 |
| 12 | New ISAR imaging algorithm based on modified Wigner-Ville distribution 显示文摘 | Xing Mengdao Wu Renbiao Li Yachao | 2009 | IET Radar Sonar Navigation2009，3，1： | 1 |
| 13 | Motion compensa- tion for UAV SAR based on raw radar data显示文摘 | Mengdao Xing Xiuwei Jiang Renbiao Wu | 2009 | IEEE Trans- actions on Geoscience and Remote Sensing2009，47，8： | 1 |
| 14 | Motion Compensation for UAV SAR Based on Raw Radar Data 显示文摘 | Meng-dao Xing Xiuwei Jiang Renbiao Wu Feng Zhou Zheng Bao | 2009 | IEEE Transaction on Geoseienees and Remote Sensing2009，47，8： | 1 |
| 15 | Propagation velocity uncertainty on GPR SAR processing显示文摘 | Wu Renbiao Gu Kunlong Li Jian | 2003 | IEEE Transaction on Aerospace and Electronic Systems2003，39，3： | 1 |
| 16 | Motion compensation for UAV SAR based on raw radar data显示文摘 | Xing Mengdao Jiang Xiuwei Wu Renbiao | | 0，，08： | 1 |
| 17 | Motion Compensation for UAV SAR Based On Raw Radar Data 显示文摘 | Xing Mengdao Jiang Xiuwei Wu Renbiao | 2009 | IEEE Trans on Geoseienee and Remote Sensing2009，47，8： | 1 |
| 18 | Capacity maximiza- tion for OFDM two-hop relay system with separate power constraints 显示文摘 | WANG Wenyi WE Renbiao | 2009 | IEEE Transactions on Vehicu- lar Technology2009，58，9： | 1 |
| 19 | Chen, robust autofocus algorithm for ISAR imaging of moving targets显示文摘 | Jian Li Renbiao Wu Victor C | 2001 | IEEE Transactions on AES2001，37，3： | 1 |
| 20 | Migration through resolution cell compensation in ISAR imaging显示文摘 | Xing Mengdao Wu Renbiao | | 0，，02： | 1 |
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