PPT-Passive Radar with LWA1

J Helmboldt NRL LWA Users Meeting Albuquerque NM July 27 2012 Introduction Passive radar is a technique that uses existing transmitters eg FM radio broadcasts to detect and determine range to reflections from objects terrain andor ionosphere. The passive forms for present imperfect and future are based on present stems for all conjugations with these personal endings r mur ris mini tur ntur re re ere ere io re portor port ris porttur portmur portmini portantur doceor doc ris doctur docmu g closed door or the resultant state control condition eg open door RI57347WKH57347SDUWLFLSOH57526V57347URRW verb Adjectival passives describe states by assigning a property Example The door is still opened However unlike adjectives the property a Ligurian. . Sea. Spatial and Temporal . scale. . considerations. L. Vandenbulcke, A. Barth, J.-M. . Beckers. GHER/AGO, Université de Liège. L. Vandenbulcke, A. Barth, J.-M. . Beckers. 0/15. DA of HF radar data in the . John F. Kennedy Intl. Airport. Introduction. FAA avian radar performance assessment program at several US airports. The Center of Excellence for Airport Technology (CEAT) cooperated with JFK to define objectives for radar analysis & analyze radar data. J. Helmboldt (NRL). LWA Users Meeting, Albuquerque, NM. July 27, 2012. Introduction. Passive radar is a technique that uses existing transmitters (e.g., FM radio broadcasts) to detect and determine range to reflections from objects, terrain, and/or ionosphere. Uses pulses of radio waves to image the subsurface (typically 25 - 1000MHz). http://upload.wikimedia.org/wikipedia/commons/8/8a/Electromagnetic-Spectrum.png. GPR uses Radio Waves to Image the Subsurface. bservations of mid-latitude . s. torms . d. uring OLYMPEX. Jennifer . DeHart. OLYMPEX Workshop. 3.22.17. NASA grants: NNX15AN52H, NNX13AG71G, NNX15AL38G, NNX16AD75G. NSF grant: AGS-1503155. APR-3. Ku/. A. nd . R. anging . What is a Sonar?. A Sonar is a system that uses transmitted and reflected underwater objects or measure the distances underwater. . What is it’s Purpose?. It has been used form submarine and mine detection, depth detection , commercial fishing, driving safety and communication at sea. . RA. dio . D. etection . A. nd . R. anging. Radar Remote Sensing. Active remote sensing system using 1 cm to 1m wavelengths (microwaves).. Microwave Atmospheric Window. Radar Systems. . AIRSAR - Flies in DC-8 with C, L, and P bands. Jayce Dowell – . LWA . Users’ . Meeting – July 27, 2012. Overview. Motivation and Design Philosophy. LWA1 data is…. In the time, not frequency, domain. Large. ~75 MB/s for one beam (two tunings, two polarizations per tuning). Introduction (Basic Principle). Typical Illuminators. Working Principle. Receiver System. Signal Conditioning & Adaptive Filtering. Cross-correlation Process. Target Detection. Advantages and Disadvantages. Ligurian. . Sea. Spatial and Temporal . scale. . considerations. L. Vandenbulcke, A. Barth, J.-M. . Beckers. GHER/AGO, Université de Liège. L. Vandenbulcke, A. Barth, J.-M. . Beckers. 0/15. DA of HF radar data in the . RADaR. ”…. THINK & RESPOND:. What steps were taken to get from the “before” to the “after” picture?. Revision . RADaR. Strategy. R. A. D (and). R. Replace…. Add…. Delete…. Reorder…. Warning Receivers. Captain Jerry Mason, USN (ret.) VE7YAB. U-boat Archive Website http://uboatarchive.net. Radio/Radar History. 1864 James Maxwell published mathematical equations describing EM waves.