TAG: Javad Ashjaee

Directions 2013: Dealing with Interference

December 1, 2012By

In my vision of the future of GNSS, I see a pressing need to manage radio-frequency spectrum more efficiently. This will drive the creation of official standards for GNSS receivers, and better design of those receivers with better filters at lower cost, to protect against out-of-band and near-band interference. This in turn will enable user to undertake widespread monitoring and reporting of in-band interference, and create the freedom for many technologies to explore wider and more productive use of all bands of the radio-frequency spectrum. read more

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GPSWorldTV – Javad Ashjaee speaking at ION – Part 1 of 5

October 10, 2012By

GPSWorldTV – Javad Ashjaee, founder and CEO of Javad GNSS – speaking at the ION GNSS Show – Part 1 of 5 read more

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GPSWorldTV – Javad Ashjaee speaking at ION – Part 5 of 5

October 10, 2012By

GPSWorldTV – Javad Ashjaee, founder and CEO of Javad GNSS – speaking at the ION GNSS Show read more

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GPSWorldTV – Javad Ashjaee speaking at ION – Part 4 of 5

October 10, 2012By

GPSWorldTV – Javad Ashjaee, founder and CEO of Javad GNSS – speaking at the ION GNSS Show read more

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GPSWorldTV – Javad Ashjaee speaking at ION – Part 3 of 5

October 10, 2012By

GPSWorldTV – Javad Ashjaee, founder and CEO of Javad GNSS – speaking at the ION GNSS Show read more

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GPSWorldTV – Javad Ashjaee speaking at ION – Part 2 of 5

October 10, 2012By

GPSWorldTV – Javad Ashjaee, founder and CEO of Javad GNSS – speaking at the ION GNSS Show read more

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J-Shield from JAVAD to Counter Interference

August 21, 2012By

  JAVAD GNSS announces that it has improved its GNSS protection filters, not only to protect the L1 band against all interferences (including LightSquared 10L, 10H and 10R handset), but to protect against all other interferences which may come in any other GNSS band. The company calls its improved filter the J-Shield, and states that it will “help make the... read more

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Letter to the Editor: Automatic Gain Control, Spoofing

July 1, 2012By

Just for the record: what is reported in “Detecting False Signals With Automatic Gain Control” (April GPS World) is what we introduced a long time ago and is reflected in one of our videos, and implemented in all of our GNSS receivers. AGC information is one of the four ways, and the least significant way, that we show interferences. There is a big difference between showing something in the laboratory and in some receivers, compared with having technology in mass production that everyone can understand and use. — Javad Ashjaee read more

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