James L Farrell Blog
Elmen C. Quesinberry
Earlier this year I wrote a belated tribute to a well-known pioneer in strapdown. Now I must write another tribute, even more belated, to a Read moreNav Course in India
Prof. H.B. Hablani from Dept Aerospace Engrg, Indian Institute of Technology (Bombay) recently taught a 5-day course on integrated navigation, Read moreNOW IT’S ALL FLIGHT-VALIDATED (The Case Builds)
In 2013 a phone presentation was arranged, for me to talk for an hour with a couple dozen engineers at Raytheon. The original plan was Read moreINFRASTRUCTURE
The sky isn't falling but some of our bridges are. About seventy thousand of them are structurally deficient, and about a quarter of those could Read moreJohn Bortz
In February of this year the navigation community lost a major contributor to navigation -- John Bortz. To many his name is best known in Read more1-sec Carrier Phase (again)
A comment challenged my video . I'm glad it included an acknowledgment that some points might have been missed. To be frank that happened a Read moreNew Kindle Book – GPS Made Simple
4/11/2013Press Release James L Farrell launches his new Kindle book - GPS Made Simple James L Farrell, author of GNSS Aided Navigation Read moreAvionics Commonality
A LinkedIn discussion centered on the Future Airborne Capability Environment (FACE) standard contained an important observation concerning Read moreOpen System Architecture for Radar
Significant momentum is evolving toward a role for Open System Architecture (OSA) applied to radar. My observations in connection with that, Read moreCONING in STRAPDOWN SYSTEMS
Free-inertial navigation uses accelerometers and gyros alone, unaided. For that purpose pioneers of yesteryear developed a variety of techniques, Read moreLORAN REVISITED
Now that several years have passed since the LORAN-C budget was killed, it might be a good time to revisit that decision. Unlike other decisions, Read moreJames L. Farrell featured in April Cover Story of Coordinates Magazine
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