Our Experts

Journal Articles

1. Zaher M. Kassas, Nadim Khairallah, Joe J. Khalife, Chiawei Lee, Juan Jurado, Steven Wachtel, Jacob Duede, Zachary Hoeffner, Thomas Hulsey, Rachel Quirarte and RunXuan Tay (2024) “Aircraft Navigation in GNSS-Denied Environments via Radio SLAM With Terrestrial Signals of Opportunity”, IEEE Transactions on Intelligent Transportation Systems, 25(10), pp. 14164–14182. Available at: 10.1109/TITS.2024.3405908. [ITS-Irvine record]
2. Joe Khalife and Zaher M. Kassas (2020) “Opportunistic UAV navigation with carrier phase measurements from asynchronous cellular signals”, IEEE Transactions on Aerospace and Electronic Systems, 56(4), pp. 3285–3301. Available at: 10.1109/taes.2019.2948452. [ITS-Irvine record]
3. Mahdi Maaref and Zaher M. Kassas (2020) “Ground vehicle navigation in GNSS-Chal­len­ged environments using signals of opportunity and a closed-loop Map-Match­ing approach”, IEEE Trans. Intell. Transport. Syst., 21(7), pp. 2723–2738. Available at: 10.1109/tits.2019.2907851. [ITS-Irvine record]
4. Zaher Zak M. Kassas, Mahdi Maaref, Joshua J. Morales, Joe J. Khalife and Kimia Shamei (2020) “Robust vehicular localization and map matching in urban environments through IMU, GNSS, and cellular signals”, IEEE Intell. Transport. Syst. Mag., 12(3), pp. 36–52. Available at: 10.1109/mits.2020.2994110. [ITS-Irvine record]
5. Fabio Dovis, Laura Ruotsalainen, Rafael Toledo-Moreo, Zaher Zak M. Kassas and Vassilis Gikas (2020) “Recent advancement on the use of global navigation satellite system-based positioning for intelligent transport systems [Guest editorial]”, IEEE Intell. Transport. Syst. Mag., 12(3), pp. 6–9. Available at: 10.1109/mits.2020.2994923. [ITS-Irvine record]
6. Mahdi Maaref and Zak Zaher M. Kassas (2020) “Measurement characterization and autonomous outlier detection and exclusion for ground vehicle navigation with cellular signals”, IEEE Transactions on Intelligent Vehicles, pp. 1–1. Available at: 10.1109/tiv.2020.2991947. [ITS-Irvine record]
7. Jesse R. Garcia, Jay A. Farrell, Zaher M. Kassas and Michael T. Ouimet (2019) “Autonomous surface vehicle multistep look-ahead measurement location planning for optimal localization of underwater acoustic transponders”, IEEE Transactions on Aerospace and Electronic Systems, 55(6), pp. 2836–2849. Available at: 10.1109/taes.2019.2909253. [ITS-Irvine record]
8. Joe J. Khalife and Zaher Zak M. Kassas (2019) “Optimal sensor placement for dilution of precision minimization via quadratically constrained fractional programming”, IEEE Transactions on Aerospace and Electronic Systems, 55(4), pp. 2086–2096. Available at: 10.1109/taes.2018.2879552. [ITS-Irvine record]
9. Zaher M. Kassas, Pau Closas and Jason Gross (2019) “Navigation systems panel report navigation systems for autonomous and semi-autonomous vehicles: Current trends and future challenges”, IEEE Aerospace and Electronics Systems Magazine, 34(5), pp. 82–84. Available at: 10.1109/maes.2019.2906971. [ITS-Irvine record]
10. Joshua J. Morales and Zaher M. Kassas (2019) “Stochastic observability and uncertainty characterization in simultaneous receiver and transmitter localization”, IEEE Transactions on Aerospace and Electronic Systems, 55(2), pp. 1021–1031. Available at: 10.1109/taes.2018.2856318. [ITS-Irvine record]
11. Mahdi Maaref, Joe Khalife and Zaher M. Kassas (2019) “Lane-level localization and mapping in GNSS-Chal­lenged environments by fusing lidar data and cellular pseudoranges”, IEEE Transactions on Intelligent Vehicles, 4(1), pp. 73–89. Available at: 10.1109/tiv.2018.2886688. [ITS-Irvine record]
12. Kimia Shamaei and Zaher M. Kassas (2018) “LTE receiver design and multipath analysis for navigation in urban environments”, NAVIGATION, 65(4), pp. 655–675. Available at: 10.1002/navi.272. [ITS-Irvine record]
13. Joshua J. Morales and Zaher M. Kassas (2018) “Optimal collaborative mapping of terrestrial transmitters: Receiver placement and performance characterization”, IEEE Transactions on Aerospace and Electronic Systems, 54(2), pp. 992–1007. Available at: 10.1109/taes.2017.2773238. [ITS-Irvine record]
14. Joe Khalife, Kimia Shamaei and Zaher M. Kassas (2018) “Navigation with cellular CDMA Signals—Part I: Signal modeling and software-defined receiver design”, IEEE Transactions on Signal Processing, 66(8), pp. 2191–2203. Available at: 10.1109/tsp.2018.2799167. [ITS-Irvine record]
15. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2018) “Exploiting LTE signals for navigation: Theory to implementation”, IEEE Transactions on Wireless Communications, 17(4), pp. 2173–2189. Available at: 10.1109/twc.2018.2789882. [ITS-Irvine record]
16. Joe Khalife and Zaher M. Kassas (2018) “Navigation with cellular CDMA Signals—Part II: Performance analysis and experimental results”, IEEE Transactions on Signal Processing, 66(8), pp. 2204–2218. Available at: 10.1109/tsp.2018.2799166. [ITS-Irvine record]
17. Zaher Zak M. Kassas, Joe Khalife, Kimia Shamaei and Joshua Morales (2017) “I hear, therefore I know where I am: Compensating for GNSS limitations with cellular signals”, IEEE Signal Processing Magazine, 34(5), pp. 111–124. Available at: 10.1109/msp.2017.2715363. [ITS-Irvine record]
18. Zaher M. Kassas and Todd E. Humphreys (2015) “Receding horizon trajectory optimization in opportunistic navigation environments”, IEEE Transactions on Aerospace and Electronic Systems, 51(2), pp. 866–877. Available at: 10.1109/taes.2014.140022. [ITS-Irvine record]
19. Zaher M. Kassas, Ari Arapostathis and Todd E. Humphreys (2015) “Greedy motion planning for simultaneous signal landscape mapping and receiver localization”, IEEE J. Sel. Top. Signal Process., 9(2), pp. 247–258. Available at: 10.1109/jstsp.2014.2387101. [ITS-Irvine record]
20. K.M. Pesyna, Z.M. Kassas, R.W. Heath Jr. and T.E. Humphreys (2014) “A phase-reconstruction technique for low-power centimeter-accurate mobile positioning”, IEEE Transactions on Signal Processing, 62(10), pp. 2595–2610. Available at: 10.1109/tsp.2014.2311967. [ITS-Irvine record]
21. Zaher M. Kassas and Todd E. Humphreys (2014) “Observability analysis of collaborative opportunistic navigation with pseudorange measurements”, IEEE Trans. Intell. Transport. Syst., 15(1), pp. 260–273. Available at: 10.1109/tits.2013.2278293. [ITS-Irvine record]
22. Z.M. Kassas (2013) “Collaborative opportunistic navigation [Student research highlight]”, IEEE Aerospace and Electronics Systems Magazine, 28(6), pp. 38–41. Available at: 10.1109/maes.2013.6533743. [ITS-Irvine record]
23. Z.M. Kassas (2011) “Discretisation of continuous-time dynamic multi-input multi-output systems with non-uniform delays”, IET Control Theory & Applications, 5(14), pp. 1637–1647. Available at: 10.1049/iet-cta.2010.0467. [ITS-Irvine record]
24. Z.M. Kassas and U. Ozguner (2010) “A nonlinear filter coupled with hospitability and synthetic inclination maps for in-surveillance and out-of-surveillance tracking”, IEEE Transactions on Systems, Man, and Cybernetics C: Applications and Reviews, 40(1), pp. 87–97. Available at: 10.1109/tsmcc.2009.2024004. [ITS-Irvine record]

Conference Papers

1. Kimia Shamaei and Zaher M. Kassas (2019) “Sub-meter accurate UAV navigation and cycle slip detection with LTE carrier phase measurements”, in Proceedings of the 32nd international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2019). Institute of Navigation, pp. 2469–2479. Available at: 10.33012/2019.17051. [ITS-Irvine record]
2. Ali A. Abdallah, Kimia Shamaei and Zaher M. Kassas (2019) “Indoor localization with LTE carrier phase measurements and synthetic aperture antenna array”, in Proceedings of the 32nd international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2019). Institute of Navigation, pp. 2670–2679. Available at: 10.33012/2019.17030. [ITS-Irvine record]
3. Mahdi Maaref and Zaher M. Kassas (2019) “UAV integrity monitoring measure improvement using terrestrial signals of opportunity”, in Proceedings of the 32nd international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2019). Institute of Navigation, pp. 3045–3056. Available at: 10.33012/2019.17009. [ITS-Irvine record]
4. Joe Khalife and Zaher M. Kassas (2019) “Assessment of differential carrier phase measurements from orbcomm LEO satellite signals for opportunistic navigation”, in Proceedings of the 32nd international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2019). Institute of Navigation, pp. 4053–4063. Available at: 10.33012/2019.17031. [ITS-Irvine record]
5. Joshua J. Morales, Joe Khalife, Ulices Santa Cruz and Zaher M. Kassas (2019) “Orbit modeling for simultaneous tracking and navigation using LEO satellite signals”, in Proceedings of the 32nd international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2019). Institute of Navigation, pp. 2090–2099. Available at: 10.33012/2019.17029. [ITS-Irvine record]
6. Sonya Ragothaman, Mahdi Maaref and Zaher M. Kassas (2019) “Multipath-optimal UAV trajectory planning for urban UAV navigation with cellular signals”, in 2019 IEEE 90th vehicular technology conference (VTC2019-Fall). IEEE. Available at: 10.1109/vtcfall.2019.8891218. [ITS-Irvine record]
7. Ali A. Abdallah and Zaher M. Kassas (2019) “Evaluation of feedback and feedforward coupling of synthetic aperture navigation with LTE signals”, in 2019 IEEE 90th vehicular technology conference (VTC2019-Fall). IEEE. Available at: 10.1109/vtcfall.2019.8891521. [ITS-Irvine record]
8. Ali A. Abdallah, Kimia Shamaei and Zaher M. Kassas (2019) “Performance characterization of an indoor localization system with LTE code and carrier phase measurements and an IMU”, in 2019 international conference on indoor positioning and indoor navigation (IPIN). IEEE (International conference on indoor positioning and indoor navigation). Available at: 10.1109/ipin.2019.8911791. [ITS-Irvine record]
9. Joe J. Khalife and Zaher M. Kassas (2019) “Receiver design for Doppler positioning with Leo satellites”, in ICASSP 2019 - 2019 IEEE international conference on acoustics, speech and signal processing (ICASSP). IEEE (International conference on acoustics speech and signal processing ICASSP), pp. 5506–5510. Available at: 10.1109/icassp.2019.8682554. [ITS-Irvine record]
10. Mahdi Maaref, Joe Khalife and Zaher M. Kassas (2019) “Pseudorange measurement outlier detection for navigation with cellular signals. WIP abstract”, in Proceedings of the 10th ACM/IEEE international conference on cyber-physical systems. ACM, pp. 346–347. Available at: 10.1145/3302509.3313334. [ITS-Irvine record]
11. Joshua Morales, Joe Khalife and Zaher M. Kassas (2019) “Simultaneous tracking of orbcomm LEO satellites and inertial navigation system aiding using Doppler measurements”, in 2019 IEEE 89th vehicular technology conference (VTC2019-Spring). IEEE (IEEE vehicular technology conference proceedings). Available at: 10.1109/vtcspring.2019.8746485. [ITS-Irvine record]
12. Kimia Shamaei, Joshua J. Morales and Zaher M. Kassas (2019) “A framework for navigation with LTE time-correlated pseudorange errors in multipath environments”, in 2019 IEEE 89th vehicular technology conference (VTC2019-Spring). IEEE (IEEE vehicular technology conference proceedings). Available at: 10.1109/vtcspring.2019.8746561. [ITS-Irvine record]
13. Christian T. Ardito, Joshua J. Morales, Joe Khalife, Ali.A. Abdallah and Zaher M. Kassas (2019) “Performance evaluation of navigation using LEO satellite signals with periodically transmitted satellite positions”, in Proceedings of the 2019 international technical meeting of the institute of navigation. Institute of Navigation (Proceedings of the international technical meeting of the institute of navigation), pp. 306–318. Available at: 10.33012/2019.16743. [ITS-Irvine record]
14. Joe J. Khalife, Souradeep Bhattacharya and Zak M. Kassas (2018) “Centimeter-accurate UAV navigation with cellular signals”, in Proceedings of the 31st international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2018). Institute of Navigation, pp. 2321–2331. Available at: 10.33012/2018.16105. [ITS-Irvine record]
15. Mahdi Maaref, Joe Khalife and Zak M. Kassas (2018) “Integrity monitoring of LTE signals of opportunity-based navigation for autonomous ground vehicles”, in Proceedings of the 31st international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2018). Institute of Navigation, pp. 2456–2466. Available at: 10.33012/2018.16093. [ITS-Irvine record]
16. Joshua J. Morales, Joe Khalife, Ali A. Abdallah, Christian T. Ardito and Zak M. Kassas (2018) “Inertial navigation system aiding with orbcomm LEO satellite Doppler measurements”, in Proceedings of the 31st international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2018). Institute of Navigation, pp. 2718–2725. Available at: 10.33012/2018.16059. [ITS-Irvine record]
17. Ali A. Abdallah, Kimia Shamaei and Zak M. Kassas (2018) “Indoor positioning based on LTE carrier phase measurements and an inertial measurement unit”, in Proceedings of the 31st international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2018). Institute of Navigation, pp. 3374–3384. Available at: 10.33012/2018.16073. [ITS-Irvine record]
18. Kimia Shamaei, Joshua J. Morales and Zak M. Kassas (2018) “Positioning performance of LTE signals in rician fading environments exploiting antenna motion”, in Proceedings of the 31st international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2018). Institute of Navigation, pp. 3423–3432. Available at: 10.33012/2018.16089. [ITS-Irvine record]
19. Joshua Morales and Zaher M. Kassas (2018) “Event-based communication strategy for collaborative navigation with signals of opportunity”, in 2018 52nd asilomar conference on signals, systems, and computers. IEEE, pp. 548–553. Available at: 10.1109/acssc.2018.8645193. [ITS-Irvine record]
20. Joshua Morales and Zaher M. Kassas (2018) “A low communication rate distributed inertial navigation architecture with cellular signal aiding”, in 2018 IEEE 87th vehicular technology conference (VTC spring). IEEE, p. 43836. Available at: 10.1109/vtcspring.2018.8417724. [ITS-Irvine record]
21. Jesse Garcia, Jay A. Farrell and Zaher M. Kassas (2018) “Optimal measurement location planning for localizing underwater transponders”, in 2018 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 480–486. Available at: 10.1109/plans.2018.8373416. [ITS-Irvine record]
22. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2018) “Pseudorange and multipath analysis of positioning with LTE secondary synchronization signals”, in 2018 IEEE wireless communications and networking conference (WCNC). IEEE, p. 43836. Available at: 10.1109/wcnc.2018.8377438. [ITS-Irvine record]
23. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2018) “A joint TOA and DOA approach for positioning with LTE signals”, in 2018 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 81–91. Available at: 10.1109/plans.2018.8373368. [ITS-Irvine record]
24. Joe Khalife and Zaher M. Kassas (2018) “Precise UAV navigation with cellular carrier phase measurements”, in 2018 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 978–989. Available at: 10.1109/plans.2018.8373476. [ITS-Irvine record]
25. Ali A. Abdallah, Samer S. Saab and Zaher M. Kassas (2018) “A machine learning approach for localization in cellular environments”, in 2018 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 1223–1227. Available at: 10.1109/plans.2018.8373508. [ITS-Irvine record]
26. Joshua Morales and Zaher M. Kassas (2018) “Information fusion strategies for collaborative radio SLAM”, in 2018 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 1445–1454. Available at: 10.1109/plans.2018.8373538. [ITS-Irvine record]
27. Kimia Shamaei, Joe Khalife, Souradeep Bhattacharya and Zaher M. Kassas (2017) “Computationally efficient receiver design for mitigating multipath for positioning with LTE signals”, in Proceedings of the 30th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2017). Institute of Navigation, pp. 3751–3760. Available at: 10.33012/2017.15229. [ITS-Irvine record]
28. Joe J. Khalife and Zaher M. Kassas (2017) “Evaluation of relative clock stability in cellular networks”, in Proceedings of the 30th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2017). Institute of Navigation, pp. 2554–2559. Available at: 10.33012/2017.15221. [ITS-Irvine record]
29. Joshua J. Morales and Zaher M. Kassas (2017) “Distributed signals of opportunity aided inertial navigation with intermittent communication”, in Proceedings of the 30th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2017). Institute of Navigation, pp. 2519–2530. Available at: 10.33012/2017.15218. [ITS-Irvine record]
30. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2017) “Ranging precision analysis of LTE signals”, in 2017 25th european signal processing conference (EUSIPCO). IEEE, pp. 2719–2723. Available at: 10.23919/eusipco.2017.8081705. [ITS-Irvine record]
31. Joe Khalife, Sonya Ragothaman and Zaher M. Kassas (2017) “Pose estimation with lidar odometry and cellular pseudoranges”, in 2017 IEEE intelligent vehicles symposium (IV). IEEE, pp. 1722–1727. Available at: 10.1109/ivs.2017.7995956. [ITS-Irvine record]
32. Joe Khalife and Zaher M. Kassas (2017) “Modeling and analysis of sector clock bias mismatch for navigation with cellular signals”, in 2017 american control conference (ACC). IEEE, pp. 3573–3578. Available at: 10.23919/acc.2017.7963500. [ITS-Irvine record]
33. Joshua J. Morales, Joe Khalife and Zaher M. Kassas (2017) “Collaborative autonomous vehicles with signals of opportunity aided inertial navigation systems”, in Proceedings of the 2017 international technical meeting of the institute of navigation. Institute of Navigation, pp. 805–818. Available at: 10.33012/2017.14896. [ITS-Irvine record]
34. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2017) “Comparative results for positioning with secondary synchronization signal versus cell specific reference signal in LTE systems”, in Proceedings of the 2017 international technical meeting of the institute of navigation. Institute of Navigation, pp. 1256–1268. Available at: 10.33012/2017.14885. [ITS-Irvine record]
35. Joshua J. Morales, Paul F. Roysdon and Zaher M. Kassas (2016) “Signals of opportunity aided inertial navigation”, in Proceedings of the 29th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2016). Institute of Navigation, pp. 1492–1501. Available at: 10.33012/2016.14652. [ITS-Irvine record]
36. Kimia Shamaei, Joe Khalife and Zaher M. Kassas (2016) “Performance characterization of positioning in LTE systems”, in Proceedings of the 29th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2016). Institute of Navigation, pp. 2262–2270. Available at: 10.33012/2016.14732. [ITS-Irvine record]
37. Joe Khalife and Zaher M. Kassas (2016) “Characterization of sector clock biases in cellular CDMA systems”, in Proceedings of the 29th international technical meeting of the satellite division of the institute of navigation (ION GNSS+ 2016). Institute of Navigation, pp. 2281–2285. Available at: 10.33012/2016.14731. [ITS-Irvine record]
38. Joe Khalife, Kimia Shamaei and Zaher M. Kassas (2016) “A software-defined receiver architecture for cellular CDMA-based navigation”, in 2016 IEEE/ION position, location and navigation symposium (PLANS). IEEE, pp. 816–826. Available at: 10.1109/plans.2016.7479777. [ITS-Irvine record]
39. Joshua J. Morales, Joe J. Khalife and Zaher M. Kassas (2016) “GNSS vertical dilution of precision reduction using terrestrial signals of opportunity”, in Proceedings of the 2016 international technical meeting of the institute of navigation. Institute of Navigation, pp. 664–669. Available at: 10.33012/2016.13463. [ITS-Irvine record]
40. J.J. Khalifeh, Z.M. Kassas and S.S. Saab (2015) “Indoor localization based on floor plans and power maps: Non-line of sight to virtual line of sight”, in 28th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2015, pp. 2291–2300. [ITS-Irvine record]
41. J.J. Morales and Z.M. Kassas (2015) “Optimal receiver placement for collaborative Mapping of signals of opportunity”, in 28th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2015, pp. 2362–2368. [ITS-Irvine record]
42. Z.M. Kassas, V. Ghadiok and T.E. Humphreys (2014) “Adaptive estimation of signals of opportunity”, in 27th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2014, pp. 1679–1689. [ITS-Irvine record]
43. Zaher M. Kassas, Jahshan Bhatti and Todd E. Humphreys (2013) “A graphical approach to GPS software-defined receiver implementation”, in 2013 IEEE global conference on signal and information processing. IEEE, pp. 1226–1229. Available at: 10.1109/globalsip.2013.6737129. [ITS-Irvine record]
44. Zaher M. Kassas and Todd E. Humphreys (2013) “The price of anarchy in active signal landscape map building”, in 2013 IEEE global conference on signal and information processing. IEEE, pp. 165–168. Available at: 10.1109/globalsip.2013.6736841. [ITS-Irvine record]
45. Zaher Kassas and Todd E. Humphreys (2013) “Motion planning for optimal information gathering in opportunistic navigation systems”, in AIAA guidance, navigation, and control (GNC) conference. American Institute of Aeronautics and Astronautics. Available at: 10.2514/6.2013-4551. [ITS-Irvine record]
46. Z.M. Kassas, J.A. Bhatti and T.E. Humphreys (2013) “Receding horizon trajectory optimization for simultaneous signal landscape mapping and receiver localization”, in 26th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2013, pp. 1962–1969. [ITS-Irvine record]
47. Zaher Kassas and Robert Bishop (2012) “Optimal H2 and H? Control of extremely large segmented telescopes”, in AIAA guidance, navigation, and control conference. American Institute of Aeronautics and Astronautics. Available at: 10.2514/6.2012-4529. [ITS-Irvine record]
48. Zaher Kassas and Todd Humphreys (2012) “Observability analysis of opportunistic navigation with pseudorange measurements”, in AIAA guidance, navigation, and control conference. American Institute of Aeronautics and Astronautics. Available at: 10.2514/6.2012-4760. [ITS-Irvine record]
49. Kenneth M. Pesyna, Zaher M. Kassas and Todd E. Humphreys (2012) “Constructing a continuous phase time history from TDMA signals for opportunistic navigation”, in Proceedings of the 2012 IEEE/ION position, location and navigation symposium. IEEE, pp. 1209–1220. Available at: 10.1109/plans.2012.6236977. [ITS-Irvine record]
50. Zaher M. Kassas (2011) “Numerical simulation of continuous-time stochastic dynamical systems with noisy measurements and their discrete-time equivalents”, in 2011 IEEE international symposium on computer-aided control system design (CACSD). IEEE, pp. 1397–1402. Available at: 10.1109/cacsd.2011.6044573. [ITS-Irvine record]
51. Z.M. Kassas (2011) “Methodologies for implementing FPGA-based control systems”, in IFAC proceedings volumes (IFAC-PapersOnline), pp. 9911–9916. Available at: 10.3182/20110828-6-IT-1002.00783. [ITS-Irvine record]
52. K.M. Pesyna Jr., Z.M. Kassas, J.A. Bhatti and T.E. Humphreys (2011) “Tightly-coupled opportunistic navigation for deep urban and indoor positioning”, in 24th international technical meeting of the satellite division of the institute of navigation 2011, ION GNSS 2011, pp. 3605–3616. [ITS-Irvine record]

Other

1. Z.M. Kassas, J.J. Morales, K. Shamaei and J. Khalife (2017) “LTE steers UAV: No GPS? No problem! Signals of opportunity work in challenged environments”, GPS World, pp. 18–25. Available at: https://www.gpsworld.com/lte-cellular-steers-uav-signals-of-opportunity-work-in-challenged-environments/. [Other] [ITS-Irvine record]
2. J.J. Morales, J.J. Khalife and Z.M. Kassas (2016) “Opportunity for accuracy: Terrestrial SOPs attractive supplement to GNSS”, GPS World, 7 March, pp. 22–29. Available at: https://www.gpsworld.com/opportunity-for-accuracy/. [Other] [ITS-Irvine record]