Jingchu He

1. Structure-aware Sparse Bayesian Learning-based Channel Estimation for Intelligent Reflecting Surface-aided MIMO
   Yanbin He; Geethu Joseph;
   In ICASSP,
   2023.

2. Low Temperature Fine Pitch All-Copper Interconnects Combining Photopatternable Underfill Films
   Xinrui Ji; Henk Van Zeijl; Weiping Jiao; Shan He; Leiming Du; Guoqi Zhang;
   In Proc. of Electronic Components and Technology Conference (ECTC),
   2023.

3. A Low-Spur Fractional-N PLL Based on a Time-Mode Arithmetic Unit
   Gao, Zhong; He, Jingchu; Fritz, Martin; Gong, Jiang; Shen, Yiyu; Zong, Zhirui; Chen, Peng; Spalink, Gerd; Eitel, Ben; Alavi, Morteza S.; Staszewski, Robert Bogdan; Babaie, Masoud;
   IEEE Journal of Solid-State Circuits,
   pp. 1-20, 2022. DOI: 10.1109/JSSC.2022.3209338

4. A 2.6-to-4.1GHz Fractional-N Digital PLL Based on a Time-Mode Arithmetic Unit Achieving -249.4dB FoM and -59dBc Fractional Spurs
   Gao, Zhong; He, Jingchu; Fritz, Martin; Gong, Jiang; Shen, Yiyu; Zong, Zhirui; Chen, Peng; Spalink, Gerd; Eitel, Ben; Yamamoto, Ken; Staszewski, Robert Bogdan; Alavi, Morteza S.; Babaie, Masoud;
   In 2022 IEEE International Solid- State Circuits Conference (ISSCC),
   pp. 380-382, 2022. DOI: 10.1109/ISSCC42614.2022.9731561

5. A DPLL-Based Phase Modulator Achieving -46dB EVM with A Fast Two-Step DCO Nonlinearity Calibration and Non-Uniform Clock Compensation
   Gao, Zhong; Fritz, Martin; He, Jingchu; Spalink, Gerd; Staszewski, Robert Bogdan; Alavi, Morteza S.; Babaie, Masoud;
   In 2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits,
   pp. 14-15, 2022. DOI: 10.1109/VLSITechnologyandCir46769.2022.9830398

6. Semisupervised Human Activity Recognition With Radar Micro-Doppler Signatures
   Li, Xinyu; He, Yuan; Fioranelli, Francesco; Jing, Xiaojun;
   IEEE Transactions on Geoscience and Remote Sensing,
   pp. 1-12, 2021. DOI: 10.1109/TGRS.2021.3090106

7. Applications and Potentials of Intelligent Swarms for magnetospheric studies
   Raj Thilak Rajan; Shoshana Ben-Maor; Shaziana Kaderali; Calum Turner; Mohammed Milhim; Catrina Melograna; Dawn Haken; Gary Paul; Vedant; V. Sreekumar; Johannes Weppler; Yosephine Gumulya; Riccardo Bunt; Asia Bulgarini; Maurice Marnat; Kadri Bussov; Frederick Pringle; Jusha Ma; Rushanka Amrutkar; Miguel Coto; Jiang He; Zijian Shi; Shahd Hayder; Dina Saad Fayez Jaber; Junchao Zuo; Mohammad Alsukour; Cécile Renaud; Matthew Chris;
   Acta Astronautica,
   2021. DOI: https://doi.org/10.1016/j.actaastro.2021.07.046
   
   Keywords: ...

   Satellite swarms, Intelligent swarms, Heliophysics, Magnetosphere, Cubesats, Next generation space systems.
   
   
   Abstract: ...

   Earth’s magnetosphere is vital for today’s technologically dependent society. To date, numerous design studies have been conducted and over a dozen science missions have flown to study the magnetosphere. However, a majority of these solutions relied on large monolithic satellites, which limited the spatial resolution of these investigations, as did the technological limitations of the past. To counter these limitations, we propose the use of a satellite swarm carrying numerous and distributed payloads for magnetospheric measurements. Our mission is named APIS — Applications and Potentials of Intelligent Swarms. The APIS mission aims to characterize fundamental plasma processes in the Earth’s magnetosphere and measure the effect of the solar wind on our magnetosphere. We propose a swarm of 40 CubeSats in two highly-elliptical orbits around the Earth, which perform radio tomography in the magnetotail at 8–12 Earth Radii (RE) downstream, and the subsolar magnetosphere at 8–12 RE upstream. These maps will be made at both low-resolutions (at 0.5 RE, 5 s cadence) and high-resolutions (at 0.025 RE, 2 s cadence). In addition, in-situ measurements of the magnetic and electric fields, plasma density will be performed by on-board instruments. In this article, we present an outline of previous missions and designs for magnetospheric studies, along with the science drivers and motivation for the APIS mission. Furthermore, preliminary design results are included to show the feasibility of such a mission. The science requirements drive the APIS mission design, the mission operation and the system requirements. In addition to the various science payloads, critical subsystems of the satellites are investigated e.g., navigation, communication, processing and power systems. Our preliminary investigation on the mass, power and link budgets indicate that the mission could be realized using Commercial Off-the-Shelf (COTS) technologies and with homogeneous CubeSats, each with a 12U form factor. We summarize our findings, along with the potential next steps to strengthen our design study.
   
   document

8. Multi-domains based human activity classification in radar
   Z. Li; F. Fioranelli; S. Yang; L. Zhang; O. Romain; Q. He; G. Cui; J. Le Kernec;
   In IET International Radar Conference (IET IRC 2020),
   pp. 1744-1749(5), January 2021. DOI: 10.1049/icp.2021.0557

9. A Deep-Learning Method for Radar Micro-Doppler Spectrogram Restoration
   He, Yuan; Li, Xinyu; Li, Runlong; Wang, Jianping; Jing, Xiaojun;
   Sensors,
   Volume 20, Issue 17, pp. 5007, 2020. DOI: 10.3390/s20175007
   document

10. Human Motion Recognition With Limited Radar Micro-Doppler Signatures
    X. Li; Y. He; F. Fioranelli; X. Jing; A. Yarovoy; Y. Yang;
    IEEE Transactions on Geoscience and Remote Sensing,
    2020. DOI: 10.1109/TGRS.2020.3028223

11. A Role for Macrophages in Hematopoiesis in the Embryonic Head
    Zhuan Li; Samanta Mariani; Carmen Rodriguez-Seoane; Wenyan He; Xiaowei Ning; Bing Liu; Chris S. Vink; Elaine Dzierzak;
    Blood,
    October 2019. DOI: 10.1182/blood.2018881243
    document

12. A 1.33 mW, 1.6 ps rms-Integrated-Jitter, 1.8-2.7 GHz Ring-Oscillator-Based Fractional-N Injection-Locked DPLL for Internet-of-Things Applications
    Gong, Jiang; He, Yuming; Ba, Ao; Liu, Yao-Hong; Dijkhuis, Johan; Traferro, Stefano; Bachmann, Christian; Philips, Kathleen; Babaie, Masoud;
    In 2018 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    IEEE, pp. 44--47, 2018.

13. Hybrid plasmonics slot THz waveguide for subwavelength field confinement and crosstalk between two waveguides
    J Xiao; QQ Wei; DG Yang; P Zhang; N He; GuoQi Zhang; XP Chen;
    IEEE Journal of Selected Topics in Quantum Electronics,
    Volume 23, Issue 4, 2017.

14. A CMOS-Compatible Hybrid Plasmonic Slot Waveguide With Enhanced Field Confinement
    Jing Xiao; Qi-Qin Wei; Dao-Guo Yang; Ping Zhang; Ning He; GuoQi Zhang;
    IEEE Electron Device Letters,
    Volume 37, Issue 4, 2016.

15. A 5.9 GHz RFDAC-based outphasing power amplifier in 40-nm CMOS with 49.2% efficiency and 22.2 dBm power
    Hu, Zhebin; de Vreede, Leo C.N.; Alavi, Morteza S.; Calvillo-Cortes, David A.; Staszewski, Robert Bogdan; He, Songbai;
    In 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    pp. 206-209, 2016. DOI: 10.1109/RFIC.2016.7508287

16. Range-Doppler surface: a tool to analyse human target in ultra-wideband radar
    Yuan He; Molchanov, P.; Sakamoto, T.; Aubry, P.; Le Chevalier, F.; Yarovoy, A.;
    IET Radar, Sonar & Navigation,
    Volume 9, Issue 9, pp. 1240-1250, Dec. 2015. doi: 10.1049/iet-rsn.2015.0065.
    document

17. A wideband 700W push-pull Doherty amplifier
    J. He; J. H. Qureshi; W. Sneijers; D. A. Calvillo-Cortes; L. C. N. deVreede;
    In 2015 IEEE MTT-S International Microwave Symposium,
    pp. 1-4, May 2015.

18. A 0.05mm² 1V capacitance-to-digital converter based on period modulation
    Y. He; Z. Y. Chang; L. Pakula; S. H. Shalmany; M. Pertijs;
    In Dig. Techn. Papers IEEE International Solid-State Circuits Conference (ISSCC),
    IEEE, pp. 486‒487, February 2015. DOI: 10.1109/ISSCC.2015.7063138
    
    Abstract: ...

    This paper presents a digitally assisted period modulation (PM)-based capacitance-to-digital converter (CDC) that is >9× smaller than prior CDCs with >10b resolution, and improves the energy efficiency by >10× compared to previous PM-based CDCs. This is achieved with the help of a piece-wise charge transfer technique that eliminates the need for a large on-chip integration capacitor, a dual-integration-capacitor scheme that reduces the front-end noise contribution, a sampled-biasing technique that reduces the noise of the integration current, and a current-efficient inverter-based design.

19. Self-similarity matrix based slow-time feature extraction for human target in high-resolution radar
    Yuan He; Pascal Aubry; Francois Le Chevalier; Alexander Yarovoy;
    International Journal of Microwave and Wireless Technologies,
    Volume 6, pp. 423-434, 2014. doi:10.1017/S1759078714000087.
    document

20. Decentralised tracking for human target in multistatic ultra-wideband radar
    Yuan He; P. J. Aubry; F. Le Chevalier; A. Yarovoy;
    IET Radar, Sonar and Navigation,
    Volume 8, Issue 9, pp. 1215--1223, 2014. DOI: 10.1049/iet-rsn.2014.0021
    document

21. Keystone transform based range-Doppler processing for human target in UWB radar
    Yuan He; Aubry, P.; Le Chevalier, F.; Yarovoy, A.;
    In Processing of the International Radar Conference 2014, Lille, October 13-17, 2014,
    pp. 1347-1352, May 2014.

22. Capacitive Sensor Interface Using an Inverter-Based Period Modulator
    Yuming He;
    MSc thesis, Delft University of Technology, October 2014.

23. Human Target Tracking in Multistatic Ultra-Wideband Radar
    Yuan He;
    PhD thesis, Delft University of Technology, Delft, April 2014.
    document

24. Self-similarity analysis on human backscattering in radar
    Y He; {Le Chevalier}, F; A Yarovoy;
    A Jacob; R Knoechel (Ed.);
    IEEE society, , pp. 81--84, 2013.

25. Texture based technique for seperating echoes from people walking in UWB rada signals
    T Sakamoto; T Sato; Y He; PJ Aubry; A Yarovoy;
    G Manara (Ed.);
    IEEE society, , pp. 119--122, 2013.

26. Self-similarity analysis on human backscattering in radar
    Yuan He; Le Chevalier, F.; Yarovoy, A.G.;
    In Radar Conference (EuRAD), 2013 European,
    pp. 81-84, Oct 2013.

27. Ultra-wideband multistatic tracking of human targets
    Yuan He; Aubry, P.; Le Chevalier, F.;
    In Radar Conference 2013, IET International,
    pp. 1-5, April 2013.

28. Ultra-low phase noise 7.2 #x2013;8.7 Ghz clip-and-restore oscillator with 191 dBc/Hz FoM
    M. Babaie; A. Visweswaran; Z. He; R. B. Staszewski;
    In 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    pp. 43-46, June 2013.

29. Association of range-Doppler video sequences in multistatic UWB radar for human tracking
    Y He; {Le Chevalier}, F; A Yarovoy;
    W Hol; {Le Chevalier et al}, F (Ed.);
    EuMA, , pp. 218--221, 2012.

30. Range-Doppler processing for indoor human tracking by multistatic ultra-wideband radar
    Y He; {Le Chevalier}, F; A Yarovoy;
    K Kulpa; H Rohling; A Kawalec (Ed.);
    IEEE society, , pp. 250--253, 2012.

31. Range-Doppler processing for indoor human tracking by multistatic ultra-wideband radar
    Yuan He; Le Chevalier, F.; Yarovoy, A.G.;
    In Radar Symposium (IRS), 2012 13th International,
    pp. 250-253, May 2012.

32. Association of range-doppler video sequences in multistatic UWB radar for human tracking
    Yuan He; Le Chevalier, F.; Yarovoy, A.G.;
    In Radar Conference (EuRAD), 2012 9th European,
    pp. 218-221, Oct 2012.

33. Two-stage algorithm for extended target tracking by multistatic UWB radar
    Y He; TG Savelyev; A Yarovoy;
    W Shunjun (Ed.);
    IEEE society, , pp. 796--799, 2011.

34. Single-grain Si TFTs for high-speed flexible electronics
    R. Ishihara; T. Chen; M. van der Zwan; M. He; H. Schellevis; C.I.M. Beenakker;
    In K. Blankenbach; L.C. Chien (Ed.), Proc. of SPIE: Advances Display Technologies and E-papers and Flexible Displays,
    San Francisco, CA, SPIE, Jan. 2011. ISBN 9780819484932; DOI 10.1117/12.876649.

35. Single-Grain Si TFTs and Circuits Fabricated Through Advanced Excimer-Laser Crystallization
    R. Ishihara; Vikas Rana; Ming He; Y. Hiroshima; S. Inoue; Wim Metselaar; Kees Beenakker;
    Solid State Electronics,
    Volume 52, pp. 353-358, 2008.

36. Single-Grain Si TFTs for Flexible Electronics and 3D-ICs
    R. Ishihara; A. Baiano; N. Saputra; M. Danesh; N. Matsuki; T. Chen; V. Rana; M. He; J. Long; Y. Hiroshima; N. Karaki; S. Inoue; C.I.M. Beenakker;
    In International TFT Conference,
    Jan. 2008.

37. Agglomeration of amorphous silicon film with high energy density excimer laser irradiation
    Ming He; Ryoichi Ishihara; Wim Metselaar; Kees Beenakker;
    Thin Solid Films,
    Volume 515, pp. 2872-2878, 2007.

38. Microstructure characterization of location-controlled Si-islands crystallized by excimer laser in the micro-Czochralski (grain filter) process
    R. Ishihara; D. Danciu; F. Tichelaar; M. He; Y. Hiroshima; S. Inoue; T. Shimoda; J.W. Metselaar; C.I.M. Beenakker;
    Journal of Crystal Growth,
    Volume 299, Issue 2, pp. 316-321, Feb. 2007.

39. Large Polycrystalline Silicon Grains Prepared by Excimer Laser Crystallization of Sputtered Amorphous Silicon Film with Process Temperature at 100oC
    Ming He; Ryoichi Ishihara; Ellen J. J. Neihof; Yvonne van Andel; Hugo Schellevis; Wim Metselaar; Kees Beenakker;
    Japanese Journal of Applied Physics,
    Volume 46, Issue 3B, pp. 1245-1249, Mar. 2007.

40. Single-Grain Si TFTs and Circuits for Flexible Electronics and 3D-ICs
    Ryoichi Ishihara; Vikas Rana; Ming He; Wim Metselaar; Kees Beenakker; Yasushi Hiroshima; Daisuke Abe; Satoshi Inoue;
    In Society for Information Display 2007 International Symposium,
    pp. 252-255, 2007.

41. Preparation of large, location-controlled Si grains by excimer-laser crystallization of a-Si films sputtered at 100oC
    M. He; R Ishihara; C. I. M. Beenakker;
    In Mater. Res. Soc. Proc.,
    2007.

42. Single-grain Si TFTs fabricated at 100oC for microelectronics on a plastic substrate
    M. He; R. Ishihara; C. I. M. Beenakker;
    In 2007 MRS Proceedings: Amorphous and Polycrystalline Thin-Film Silicon Science and Technology,
    2007.

43. Crystallographic orientation- and location-controlled Si single grains on an amorphous substrate for large area electronics
    M. He;
    PhD thesis, Delft University of Technology, Sept. 2007. ISBN 978-90-8559-306-5; Promotor: prof. C.I.M. Beenakker.

44. Textured Self-assembled Square-shaped Poly-Si Grains by Multiple Shots Excimer Laser Crystallization
    Ming He; Ryoichi Ishihara; Wim Metselaar; Kees Beenakker;
    Journal of Applied Physics,
    Volume 100, 2006.

45. Effects of Capping Layer on Grain Growth with mu-Czochralski Process during Excimer Laser Crystallization
    Ming He; Ryoichi Ishihara; Yasushi Hiroshima; Satoshi Inoue; Tatsuya Shimoda; Wim Metselaar; Kees Beenakker;
    Japanese Journal of Applied Physics,
    Volume 45, Issue 1, 2006.

46. Preferred <100> surface and in-plane orientations in self-assembled poly-Si by multiple excimer-laser irradiation
    M. He; R Ishihara; C. I. M. Beenakker;
    Electrochemical Society Transaction,
    Volume 3, Issue 8, pp. 167-172, Oct. 2006.

47. Preparation of Large Poly-Si Grains by Excimer Laser Crystallization of Sputtered a-Si film with Processing Temperature of 100 �C
    M. He; R. Ishihara; E.J.J. Neihof; Y. van Andel; H. Schellevis; C.I.M. Beenakker;
    In Proc. AM-FPD 06,
    2006.
    document

48. Preparation of large, location-controlled Si grains by excimer laser crystallization of �-Si film sputtered at 100 �C
    M. He; E.J.J. Neihof; Y. van Andel; H. Schellevis; R. Ishihara; J.W. Metselaar; C.I.M. Beenakker;
    In Amorphous and Polycrystalline Thin-Film Silicon Science and Technology 2006,
    2006.
    document

49. Preferred <100> Surface and In-Plane Orientations in Self-Assembled Poly-Si by Multiple Excimer Laser Irradiation
    M. He; R. Ishihara; W. Metselaar; Kees Beenakker;
    In 2006 Joint International Meeting of the Electrochemical Society, Symposium Thin Film Transistors 8 (TFT8),
    Cancun, Mexico, Oct. 2006.
    document

50. Single-Grain Si TFTs and Circuits for Flexible Electronics and 3D-ICs
    Ryoichi Ishihara; Vikas Rana; Ming He; Wim Metselaar; Kees Beenakker;
    In 2006 8th International Conference on Solid-State and Integrated Circuit Technology (ICSICT),
    Shanghai, China, pp. 174-177, Oct. 2006.
    document

51. Electrical property of coincidence site lattice grain boundary in location-controlled Si island by excimer-laser crystallization
    R. Ishihara; M. He; V. Rana; Y. Hiroshima; S. Inoue; T. Shimoda; J.W. Metselaar; C. I. M. Beenakker;
    Thin Solid Films,
    Volume 487, Issue 1-2, pp. 97-101, Sep. 2005.

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