Work

I am an engi­neer at Upp­sa­la Uni­ver­si­ty in Swe­den. My rese­arch inte­rests inclu­de

  • wire­less com­mu­ni­ca­ti­on in con­trol engi­nee­ring,
  • ener­gy har­ve­s­ting and wire­less ener­gy trans­fer in con­trol engi­nee­ring app­li­ca­ti­ons,
  • sca­la­bi­li­ty of dyna­mi­cal sys­tems,
  • con­trol engi­nee­ring and its app­li­ca­ti­ons,
  • sta­bi­li­ty and ana­ly­sis of two-dimen­sio­nal sys­tems and
  • port-Hamil­to­ni­an sys­tems.

See also my cur­ri­cu­lum vitae.

Journal Publications

  1. S. Knorn, S. Dey, A. Ahlén and D.E. Que­ve­do, „Opti­mal Ener­gy Allo­ca­ti­on in Mul­ti Sen­sor Esti­ma­ti­on over Wire­less Chan­nels using Ener­gy Har­ve­s­ting and Sharing“, sub­mit­ted to IEEE Tran­sac­tions on Auto­ma­tic Con­trol, 2018, under review.
  2. S. Knorn and A. Ahlén, „Opti­mal Ener­gy and Task Sharing for Ener­gy Har­ve­s­ting Wire­less Sen­sor Net­works“, sub­mit­ted to IEEE Tran­sac­tions on Green Com­mu­ni­ca­ti­ons and Net­wor­king, 2018, under review.
  3. S. Knorn, A. Ahlén and S. Dey, „Opti­mi­zing data rate with ener­gy har­ve­s­ting sen­sors over fading chan­nels: to lis­ten or not to lis­ten to chan­nel infor­ma­ti­on“, sub­mit­ted to Auto­ma­ti­ca, 2018, under review.
  4. B. Bes­se­link and S. Knorn, „Scalab­le input-to-sta­te sta­bi­li­ty for per­for­mance ana­ly­sis of lar­ge-sca­le net­works“, sub­mit­ted to Con­trol Sys­tems Let­ters (L-CSS), 2018, under review.
  5. D. Varagno­lo, S. Knorn, E. Oli­ver-Chi­va, R. Mel­les and M. Dewit­te, „Data-dri­ven model­ling of sub­jec­tive pain/pleasure assess­ments as respon­ses to vagi­nal dila­ti­on sti­mu­li“, sub­mit­ted to Con­trol Sys­tems Let­ters (L-CSS), 2018, under review.
  6. I. Her­man, S. Knorn and A. Ahlén, „Dis­tur­ban­ce sca­ling in bidi­rec­tio­nal vehi­cle pla­toons with dif­fe­rent asym­me­try in posi­ti­on and velo­ci­ty cou­pling“, Auto­ma­ti­ca, 2017. herman2017
  7. S. Knorn, D. Varagno­lo, R. Mel­les and M. Dewit­te, „Mathe­ma­ti­cal model­ling of pres­su­re ver­sus pain rela­ti­ons in women suf­fe­ring from dys­pa­re­u­nia“, Jour­nal of Sexu­al Medi­ci­ne, vol. 14, no. 5, sup. 4, page e335, May 2017. knorn2017was
  8. S. Knorn and S. Dey, „Opti­mal ener­gy allo­ca­ti­on for line­ar con­trol with packet loss under ener­gy har­ve­s­ting cons­traints“, Auto­ma­ti­ca, vol. 77, pages 259–267, March 2017. knorn2017a
  9. S. Knorn, Z. Chen and R.H. Midd­le­ton, „Over­view: Collec­tive Con­trol of Mul­ti-agent Sys­tems“, accep­ted for publi­ca­ti­on in  IEEE Tran­sac­tions on Con­trol of Net­work Sys­tems, vol. 3, no. 4, pages 334–347, Decem­ber 2016. knorn2016b
  10. S. Knorn and R.H. Midd­le­ton, “Asym­ptotic and Expo­nen­ti­al Sta­bi­li­ty of Non­line­ar Two-Dimen­sio­nal Con­ti­nuous-Dis­cre­te Roes­ser Models”, Sys­tems and Con­trol Let­ters, vol. 93, pages 35–42, July 2016.  knorn2016c
  11. S. Knorn and A. Ahlén, “Devia­ti­on Bounds in Mul­ti Agent Sys­tems Descri­bed by Undi­rec­ted Graphs”, Auto­ma­ti­ca, vol. 67, pages 205–210, May 2016. knorn2016a
  12. S. Knorn, A. Donaire, J.C. Agüero and R.H. Midd­le­ton, “Sca­la­bi­li­ty of Bidi­rec­tio­nal Vehi­cle Strings with Sta­tic and Dyna­mic Mea­su­rement Errors”, Auto­ma­ti­ca, vol. 62, pages 208–212, Decem­ber 2015. knorn2015b
  13. S. Knorn, S. Dey, A. Ahlén and D.E. Que­ve­do, „Dis­tor­ti­on Mini­mi­za­ti­on in Mul­ti-Sen­sor Esti­ma­ti­on Using Ener­gy Har­ve­s­ting and Ener­gy Sharing“, IEEE Tran­sac­tions on Signal Pro­ces­sing, vol. 63, no. 11, pages 2848–2863, June 2015. knorn2015a
  14. S. Knorn, A. Donaire, J.C. Agüero and R.H. Midd­le­ton, “Pas­si­vi­ty-based con­trol for mul­ti-vehi­cle sys­tems sub­ject to string cons­traints”, Auto­ma­ti­ca, vol. 50, no. 12, pages 3224–3230, Decem­ber 2014. knorn2014
  15. S. Knorn and R.H. Midd­le­ton, “Sta­bi­li­ty of Two-Dimen­sio­nal Line­ar Sys­tems with Sin­gu­la­ri­ties on the Sta­bi­li­ty Bounda­ry using LMIs”, IEEE Tran­sac­tions on Auto­ma­tic Con­trol, vol. 58, no. 10, pages 2579–2590, Octo­ber 2013. knorn2013
  16. R. Shor­ten, M. Cor­less, K. Wulff, S. Klin­ge, and R.H. Midd­le­ton, “Qua­dra­tic Sta­bi­li­ty and Sin­gu­lar SISO Swit­ching Sys­tems”, IEEE Tran­sac­tions on Auto­ma­tic Con­trol, vol. 54, no. 11, pages 2714–2718, Novem­ber 2009. shorten2009

Book Chapters

  1. S. Knorn and D.E. Que­ve­do, „Opti­mal ener­gy allo­ca­ti­on in ener­gy har­ve­s­ting and sharing wire­less sen­sor net­works“, in „Ener­gy Har­ve­s­ting for Wire­less Sen­sor Net- works: Tech­no­lo­gies, Com­pon­ents and Sys­tem Design“ de Gruy­ter, 2018.

Conference Publications

  1. E. Fjäll­ström, S. Knorn, K. Staf­fas and D. Varagno­lo, „Deve­lo­ping Con­cept Inven­to­ry Tests for Elec­tri­cal Engi­nee­ring (CITE): extrac­ta­ble infor­ma­ti­on, ear­ly results, and lear­ned les­sons“, sub­mit­ted to 12th UKACC Inter­na­tio­nal Con­fe­rence on Con­trol, 2018, under review.
  2. S. Knorn, D. Varagno­lo, E. Oli­ver-Chi­va, R. Mel­les and M. Dewit­te, „Data-dri­ven model­ling of pel­vic floor mus­cles dyna­mics“, sub­mit­ted to IFAC Sym­po­si­um on Bio­lo­gi­cal and Medi­cal Sys­tems (BMS), 2018, under review.
  3. D. Varagno­lo, S. Knorn, E. Oli­ver-Chi­va, R. Mel­les and M. Dewit­te, „Towards the indi­vi­dua­li­za­ti­on of vagi­nal dila­ta­ti­on exer­ci­ses: A Quan­ti­ta­ti­ve ana­ly­sis of the varia­bi­li­ty of vagi­nal pres­su­re respon­ses“, ISSM ESSM Annu­al Mee­ting, March 2018.
  4. J. Fer­gu­son, A. Donaire, S. Knorn and R.H. Midd­le­ton, „Decen­tra­li­zed con­trol for l2 weak string sta­bi­li­ty of vehi­cle pla­toon“, IFAC World Con­gress, July 2017. ferguson2017ifac
  5. D. Varagno­lo, S. Knorn, R. Mel­les and M. Dewit­te, „Qua­li­ta­ti­ve mode­ling of pres­su­re vs. pain rela­ti­ons in women suf­fe­ring from dys­pa­re­u­nia“, IFAC World Con­gress, July 2017. varagnolo2017ifac
  6. S. Knorn and S. Dey, „Opti­mal Sen­sor Trans­mis­si­on Ener­gy Allo­ca­ti­on for Line­ar Con­trol Over a Packet Drop­ping Link with Ener­gy Har­ve­s­ting“, 54th IEEE Con­fe­rence on Deci­si­on and Con­trol, Decem­ber 2015. knorn2015cdc
  7. S. Knorn and S. Dey, „Opti­mal Ener­gy Allo­ca­ti­on for Line­ar Con­trol over a Packet-Drop­ping Link with Ener­gy Har­ve­s­ting Cons­traints“, 5th IFAC Work­shop on Dis­tri­bu­t­ed Esti­ma­ti­on and Con­trol in Net­wor­ked Sys­tems (Nec­Sys 2015), Sep­tem­ber 2015. knorn2015necsys
  8. S. Knorn, S. Dey, A. Ahlén and D.E. Que­ve­do, „Mul­ti-Sen­sor Esti­ma­ti­on Using Ener­gy Har­ve­s­ting and Ener­gy Sharing“, IEEE Inter­na­tio­nal Con­fe­rence on Com­mu­ni­ca­ti­ons, pages 4229–4234, June 2015. knorn2015icc
  9. S. Knorn and R.H. Midd­le­ton, „Lymph com­part­ment models and HIV intra pati­ent infec­tion dyna­mics“, IEEE Con­fe­rence on Con­trol App­li­ca­ti­ons, pages 1699–1704, Octo­ber 2014. knorn2014msc
  10. S. Knorn, A. Donaire, J.C. Agüero and R.H. Midd­le­ton, “Sca­la­bi­li­ty of Bidi­rec­tio­nal Vehi­cle Strings with Mea­su­rement Errors”, IFAC World Con­gress, pages 9171–9176, August 2014. knorn2014ifacwc
  11. S. Knorn and R.H. Midd­le­ton, “Two-Dimen­sio­nal Ana­ly­sis of String Sta­bi­li­ty of Non­line­ar Vehi­cle Strings”, 52nd IEEE Con­fe­rence on Deci­si­on and Con­trol, pages 5864–5869, Decem­ber 2013. knorn2013cdc
  12. S. Knorn, A. Donaire, J.C. Agüero and R.H. Midd­le­ton, “Ener­gy-based Con­trol of Bidi­rec­tio­nal Vehi­cle Strings”, Pro­cee­dings of the 3rd Aus­tra­li­an Con­trol Con­fe­rence, pages 251–256, Novem­ber 2013. knorn2013aucc
  13. S. Knorn and R.H. Midd­le­ton, “String Sta­bi­li­ty Ana­ly­sis of a Vehi­cle Pla­toon with Com­mu­ni­ca­ti­on Ran­ge 2 Using the Two-Dimen­sio­nal Indu­ced Ope­ra­tor Norm”, Pro­cee­dings of the ECC, pages 3354–3359, July 2013. knorn2013ecc
  14. S. Knorn and R.H. Midd­le­ton, “Asym­ptotic Sta­bi­li­ty of Two-Dimen­sio­nal Con­ti­nuous Roes­ser Models with Sin­gu­la­ri­ties at the Sta­bi­li­ty Bounda­ry”, Pro­cee­dings of the 51st IEEE Con­fe­rence on Deci­si­on and Con­trol, pages 7787–7792, Decem­ber 2012. knorn2012cdc
  15. S. Knorn and R.H. Midd­le­ton, “Two-Dimen­sio­nal Fre­quen­cy Domain Ana­ly­sis of String Sta­bi­li­ty”, Pro­cee­dings of the 2nd Aus­tra­li­an Con­trol Con­fe­rence, pages 301–306, Novem­ber 2012. knorn2012aucc
  16. S. Klin­ge and R.H. Midd­le­ton, “Time Head­way Requi­re­ments for String Sta­bi­li­ty of Homo­ge­neous Line­ar Uni­di­rec­tio­nal­ly Con­nec­ted Sys­tems”, Joint 48th IEEE Con­fe­rence on Deci­si­on and Con­trol and 28th Chi­ne­se Con­trol Con­fe­rence, pages 1992–1997, Decem­ber 2009. knorn2009cdc
  17. S. Klin­ge and R.H. Midd­le­ton, “String Sta­bi­li­ty Ana­ly­sis of Homo­ge­neous Line­ar Uni­di­rec­tio­nal­ly Con­nec­ted Sys­tems with Non­ze­ro Initi­al Con­di­ti­ons”, IET Irish Signals and Sys­tems Con­fe­rence, June 2009. knorn2009issc
  18. R. Shor­ten, M. Cor­less, R.H. Midd­le­ton, S. Klin­ge, and K. Wulff, “A Qua­dra­tic Sta­bi­li­ty Result for Sin­gu­lar Swit­ched Sys­tems with App­li­ca­ti­on to Anti-Win­dup Con­trol”, Pro­cee­dings of the 2009 Ame­ri­can Con­trol Con­fe­rence, pages 1917–1922, June 2009. shorten2009acc
  19. L. Gri­go­rov, K. Rudie, J.E.R. Cury and S. Klin­ge, “Tem­pla­te Design and Auto­ma­tic Gene­ra­ti­on of Con­trol­lers for Indus­tri­al Robots”, Pro­cee­dings of the 2008 ACM Sym­po­si­um on App­lied Com­pu­ting, March 2008. grigorov2008acmsac

Final Theses

PhD The­sis
A Two-Dimen­sio­nal Sys­tems Sta­bi­li­ty Ana­ly­sis of Vehi­cle Pla­toons
Natio­nal Uni­ver­si­ty of Ire­land Mayn­ooth, Ire­land, finis­hed at the Uni­ver­si­ty of New­cast­le, Cal­lag­han NSW, Aus­tra­lia, 2013.
Master’s the­sis (Diplom­ar­beit)
Sta­bi­li­ty Issu­es in Dis­tri­bu­t­ed Sys­tems of Vehi­cle Pla­toons
Otto-von-Gue­ri­cke Uni­ver­si­ty Mag­de­burg, Ger­ma­ny, writ­ten at the Hamil­ton Insti­tut, Natio­nal Uni­ver­si­ty of Ire­land Mayn­ooth, Ire­land, 2008.
Bachelor’s The­sis (Stu­di­en­ar­beit)
Super­vi­so­ry Con­trol of a Manu­fac­tu­ring Cell: Mode­ling and Imple­men­ta­ti­on
Otto-von-Gue­ri­cke Uni­ver­si­ty Mag­de­burg, Ger­ma­ny, writ­ten at the Uni­ver­si­dade Federal de San­ta Cata­rina, Flo­ri­anó­po­lis, Bra­si­l, 2007.
Internship report
Bestim­mung von Stra­ßen­quer­nei­gung, Otto-von-Gue­ri­cke Uni­ver­si­ty Mag­de­burg, Ger­ma­ny, writ­ten at the Daim­ler AG Sin­del­fin­gen / Böb­lin­gen, Ger­ma­ny 2008.