{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T16:52:29Z","timestamp":1777567949741,"version":"3.51.4"},"reference-count":33,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2017,7,22]],"date-time":"2017-07-22T00:00:00Z","timestamp":1500681600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003329","name":"Ministerio de Econom\u00eda y Competitividad","doi-asserted-by":"publisher","award":["TEC2015-71148-R"],"award-info":[{"award-number":["TEC2015-71148-R"]}],"id":[{"id":"10.13039\/501100003329","id-type":"DOI","asserted-by":"publisher"}]},{"name":"European Commission (SCOUT Project)","award":["FP7-COOPERATION-2013-SEC-SCOUT-607019"],"award-info":[{"award-number":["FP7-COOPERATION-2013-SEC-SCOUT-607019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The problem of ground target detection with passive radars is considered. The design of an antenna array based on commercial elements is presented, based on a non-uniform linear array optimized according to sidelobe level requirements. Array processing techniques are applied in the cross-ambiguity function domain to exploit integration gain, system resolution and the sparsity of targets in this domain. A modified two-stage detection scheme is described, which is based on a previously-published one by other authors. All of these contributions are validated in a real semiurban scenario, proving the capabilities of detection, the direction of arrival estimation and the tracking of ground targets in the presence of big buildings that generate strong clutter returns. Detection performance is validated through the probability of false alarm and the probability of detection estimation with specified estimation errors.<\/jats:p>","DOI":"10.3390\/rs9070756","type":"journal-article","created":{"date-parts":[[2017,7,24]],"date-time":"2017-07-24T10:04:06Z","timestamp":1500890646000},"page":"756","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Passive Radar Array Processing with Non-Uniform Linear Arrays for Ground Target\u2019s Detection and Localization"],"prefix":"10.3390","volume":"9","author":[{"given":"Nerea","family":"Del-Rey-Maestre","sequence":"first","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Mata-Moya","sequence":"additional","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria-Pilar","family":"Jarabo-Amores","sequence":"additional","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pedro-Jose","family":"G\u00f3mez-del-Hoyo","sequence":"additional","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jose-Luis","family":"B\u00e1rcena-Humanes","sequence":"additional","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Javier","family":"Rosado-Sanz","sequence":"additional","affiliation":[{"name":"Signal Theory and Communications Department, Superior Polytechnic School, University of Alcal\u00e1, Alcal\u00e1 de Henares, 28805 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,7,22]]},"reference":[{"key":"ref_1","unstructured":"IEEE Aerospace and Electronics System Society, 686 WG\u2014Terminology Working Group (1990). IEEE Standar Radar Definitions, IEEE Std."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Malanowski, M., Kulpa, K., and Misjurewicz, J. (2008, January 22\u201324). PaRaDe\u2014Passive Radar Demostrator family development at Warsaw University of Technology. Proceedings of the MRRS 2008, Microwaves, Radar and Remote Sensing Symposium, Kiev, Ukraine.","DOI":"10.1109\/MRRS.2008.4669549"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Malanowski, M., and Kulpa, K. (2008, January 26\u201330). Digital beamforming for passive coherent location radar. Proceedings of the RADAR \u201908, IEEE Radar Conference, Rome, Italy.","DOI":"10.1109\/RADAR.2008.4720988"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Kuschel, H., Heckenbach, J., Muller, S., and Appel, R. (2008, January 26\u201330). On the potentials of passive, multistatic, low frequency radars to counter stealth and detect low flying targets. Proceedings of the International 2008 Radar Conference, Rome, Italy.","DOI":"10.1109\/RADAR.2008.4720984"},{"key":"ref_5","unstructured":"Schr\u00f6der, A. (2011, January 3\u20134). Second-Generation Mobile Multiband Passive Radar Demonstrator. Proceedings of the 3rd FHR Focus Days on PCL, Wachtberg, Germany."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Moscardini, C., Conti, M., Berizzi, F., Martorella, M., and Capria, A. (2014, January 19\u201323). Spatial Adaptive Processing for Passive Bistatic Radar. Proceedings of the IEEE Radar Conference, Cincinnati, OH, USA.","DOI":"10.1109\/RADAR.2014.6875751"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Bournaka, G., Heckenbach, J., Baruzzi, A., Cristallini, D., and Kuschel, H. (2016, January 2\u20136). A Two Stage Beamforming Approach for Low Complexity CFAR Detection and Localization for Passive Radar. Proceedings of the 2016 IEEE Radar Conference, Philadelphia, PA, USA.","DOI":"10.1109\/RADAR.2016.7485291"},{"key":"ref_8","first-page":"133","article-title":"IDEPAR: A multichannel digital video broadcasting-terrestrial passive radar technological demonstrator in terrestrial radar scenarios","volume":"11","author":"Nas","year":"2016","journal-title":"IET Radar Sonar Navig."},{"key":"ref_9","first-page":"1908","article-title":"Ultra-high frequency Passive Radar coverage for cars detection in Semi-Urban scenarios","volume":"11","year":"2016","journal-title":"Int. J. Comput. Electri. Automation Control Inf. Eng."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Gomez-DelHoyo, P.J., Barcena-Humanes, J.L., Mata-Moya, D., Juara-Casero, D., and de Lucas, V.J. (2015, January 8\u201311). Passive Radars as Low Environmental Impact Solutions for Smart Cities Traffic Monitoring. Proceedings of the 16th International Conference on Computer as Tool (Eurocon15), Salamanca, Spain.","DOI":"10.1109\/EUROCON.2015.7313780"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Del Rey-Maestre, N., Mata-Moya, D., Jarabo-Amores, M.P., Gomez-DelHoyo, P.J., and Martin-DeNicolas, J. (2015, January 8\u201311). MLP-based approximation to the Neyman Pearson Detector in a Terrestrial Passive Bistatic Radar Scenario. Proceedings of the 16th International Conference on Computer as Tool (Eurocon15), Salamanca, Spain.","DOI":"10.1109\/EUROCON.2015.7313778"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Del Rey-Maestre, N., Jarabo-Amores, M.P., Mata-Moya, D., Gomez-DelHoyo, P.J., and Barcena-Humanes, J.L. (2015, January 9\u201311). Statistical analysis of UHF bistatic radar clutter in coastal scenarios. Proceedings of the 12th European Radar Conference (EuRAD 2015), Paris, France.","DOI":"10.1109\/EuRAD.2015.7346285"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Gomez-DelHoyo, P.J., del Rey-Maestre, N., Mata-Moya, D., Jarabo-Amores, M.P., and Martin-DeNicolas, J. (2015, January 10\u201312). First results on ground targets tracking using UHF passive radars under non line-of-sight conditions. Proceedings of the Signal Processing Symposium 2015 (SPSympo2015), Debe, Poland.","DOI":"10.1109\/SPS.2015.7168276"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Barcena-Humanes, J.L., del Rey-Maestre, N., Jarabo-Amores, M.P., Mata-Moya, D., and Gomez-DelHoyo, P.J. (2015, January 10\u201312). Passive radar imaging capabilities using space-borne commercial illuminators in surveillance applications. Proceedings of the Signal Processing Symposium 2015 (SPSympo2015), Debe, Poland.","DOI":"10.1109\/SPS.2015.7168314"},{"key":"ref_15","unstructured":"Trees, H.V. (2002). Optimum Array Processing (Part IV of Detection, Estimation, and Modulation Theory), Wiley."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"185","DOI":"10.2528\/PIERM08072302","article-title":"Nonuniformly spaced linear array design for the specified beamwidth\/sidelobe level or specified directivity\/sidelobe level with coupling considerations","volume":"4","author":"Oraizi","year":"2008","journal-title":"Prog. Electromagn. Res. M"},{"key":"ref_17","unstructured":"Colone, F., Cardinali, R., and Lombardo, P. (2006, January 24\u201327). Cancellation of clutter and multipath in passive radar using a sequential approach. Proceedings of the 2006 IEEE Conference on Radar, Verona, NY, USA."},{"key":"ref_18","unstructured":"Wu, D., Shen, L., Xie, J., and Wang, Y. (2012, January 9\u201311). Improved LMS algorithm and its application in direct path and multipath cancellation for passive radar. Proceedings of the 2012 IEEE 14th International Conference on Communication Technology (ICCT), Chengdu, China."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Cardinali, R., Colone, F., Ferretti, C., and Lombardo, P. (2007, January 17\u201320). Comparison of clutter and multipath cancellation techniques for passive radar. Proceedings of the 2007 IEEE Radar Conference, Waltham, MA, USA.","DOI":"10.1109\/RADAR.2007.374262"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Coleman, C., Watson, R., and Yardley, H. (2008, January 26\u201330). A practical bistatic passive radar system for use with DAB and DRM illuminators. Proceedings of the IEEE Radar Conference, Rome, Italy.","DOI":"10.1109\/RADAR.2008.4721007"},{"key":"ref_21","unstructured":"Zemmari, R., Nickel, U., and Wirth, W. (October, January 30). GSM Passive Radar for medium range surveillance. Proceedings of the European Radar Conference (EuRAD), Rome, Italy."},{"key":"ref_22","unstructured":"Petri, D., Capria, A., Martorella, M., and Berizzi, F. (October, January 30). Ambiguity function study for UMTS Passive Radar. Proceedings of the European Radar Conference (EuRAD), Rome, Italy."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1049\/ip-rsn:20045067","article-title":"DTV signal ambiguity function analysis for radar applications","volume":"152","author":"Saini","year":"2005","journal-title":"IEEE Proc. Radar Sonar Navig."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"2116","DOI":"10.1109\/TSP.2012.2236324","article-title":"Design and synthesis of flexible switching 1x2 antenna array on Kapton substrate","volume":"61","author":"Palmer","year":"2013","journal-title":"IEEE Trans. Signal Proc."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Levanon, N., and Monzeson, E. (2004). Radar Signals, Wiley Interscience.","DOI":"10.1002\/0471663085"},{"key":"ref_26","unstructured":"Joint Technical Committee (JTC), Broadcast of the European Broadcasting Union (EBU), Comit\u00e9 Europ\u00e9en de Normalisation ELECtrotechnique (CENELEC), and the European Telecommunications Standards Institute (ETSI) (1999). Digital Video Broadcasting (DVB): Framing structure, channel coding and modulation for digital terrestrial television, ETSI EN 300 744 V1.6.1, European Telecommunication Standars Institute."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Fourikis, N. (2000). Advanced Array Systems, Applications and RF Technologies, Academic Press.","DOI":"10.1016\/B978-012262942-6\/50003-2"},{"key":"ref_28","unstructured":"Goldberg, D. (1989). Genetic Algorithm in Search, Optimization and Machine Learning, Addison-Wesley."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1109\/79.526899","article-title":"Two decades of array signal processing research: The parametric approach","volume":"13","author":"Krim","year":"1996","journal-title":"IEEE Signal Process. Mag."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1109\/53.665","article-title":"Beamforming: A versatile approach to spatial filtering","volume":"5","author":"Veen","year":"1988","journal-title":"IEEE ASSP Mag."},{"key":"ref_31","unstructured":"Bell, K.L., Harry, L., Trees, V., and Griffiths, L.J. (2000, January 14\u201315). Adaptive Beampattern Control Using Quadratic Constraints for Circular Array STAP. Proceedings of the 8th Annual Workshop on Adaptive Sensor Array Processing (ASAP 2000), MIT Lincoln Laboratory, Boston, MA, USA."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Bournaka, G., Baruzzi, A., Heckenbach, J., and Kuschel, H. (2015, January 10\u201315). Experimental validation of beamforming techniques for localization of moving target in passive radar. Proceedings of the 2015 IEEE Radar Conference, Arlington, VA, USA.","DOI":"10.1109\/RADAR.2015.7131274"},{"key":"ref_33","unstructured":"Skolnik, M.I. (2008). Radar Handbook, Mc-Graw Hill. [3rd ed.]."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/9\/7\/756\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:43:41Z","timestamp":1760208221000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/9\/7\/756"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,7,22]]},"references-count":33,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2017,7]]}},"alternative-id":["rs9070756"],"URL":"https:\/\/doi.org\/10.3390\/rs9070756","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,7,22]]}}}