TAG: interference

NTLab Launches GNSS RF Front-End with Reduced Power Consumption

November 12, 2014By

NTLab, a fabless microelectronic company based in Belarus, is offering the NT1051 dual-channel multi-frequency (L1/L2/L3/L5) mutli-system (GPS/GLONASS/Galileo/BeiDou) RF front end. Manufactured in 0.18 um TSMC BiCMOS technology, it provides operability of the GNSS receiver even if interference power is 120-dB higher than the satellite signal. The chip was designed to bring benefits of high-grade GNSS receivers to portable devices. To allow reliable... read more

Danger, Will Robinson! Beware the IMES of Japan

October 8, 2014By
IMES-1-B

In May 2011, Dinesh Manandhar and Hideyuki Torimoto of GNSS Technologies, Inc., Japan, penned a very interesting article in GPS World titled – Opening Up Indoors: Japan’s Indoor Messaging System, IMES. The opening paragraph of their lengthy article seemingly describes the Holy Grail for the indoor positioning lobby: “An indoor messaging system (IMES) has been developed to meet the challenges of indoor... read more

Loctronix Advances GNSS Integrity Monitoring with HGX Interference Detection System

September 10, 2014By

Loctronix Corporation, a provider of positioning, navigation, and timing (PNT) solutions for GNSS-challenged environments, has unveiled the HGX Interference Detection System (IDS) for identifying and monitoring intentional and unintentional interference sources. The IDS is being demonstrated September 10-11 at ION GNSS+ 2014, in Tampa, Florida. “The IDS can detect sources of interference ranging between 5 dB and 60 dB GNSS jamming to signal... read more

Locata Warns: Lessons to Be Learned from GLONASS Spasm

April 15, 2014By
Locata-O

Calling it an “unprecedented and deeply worrying total disruption . . . [that] shook the industry,” Locata Corporation reiterated its call for redundant terrestrial systems to back up GNSS in the wake of the April 1 11-hour GLONASS system outage. Nunzio Gambale, Locata CEO, said “We have been telling the industry for years that you cannot have a critically important... read more

The System: Galileo Accomplishes In-Orbit Validation

March 1, 2014By

Galileo Accomplishes In-Orbit Validation Nucleus of Four Now Operational: It “Works, and Works Well” The European Space Agency (ESA) announced fulfillment of the in-orbit validation (IOV) of Galileo on February 10. IOV was achieved with four satellites, the minimum number needed to perform navigation fixes. “IOV was required to demonstrate that the future performance that we want to meet when... read more

ITT Exelis Offers Signal Sentry to Detect Jamming Sources

April 10, 2013By
The Signal Sentry 1000.

ITT Exelis is offering the Signal Sentry 1000, a proprietary product  that detects, geolocates, and characterizes sources of intentional and unintentional interference to the U.S. GPS signals, and provides actionable intelligence to the user. The system leverages GNSS signal domain knowledge, and is based upon patented technology developed through the company’s history of designing and fielding electronic intelligence systems, ITT... read more

Directions 2013: The Future of GNSS Security

December 1, 2012By

The GNSS interference session this year at the ION-GNSS conference in Nashville was one of the most crowded, confirming the need of all sectors of the community to understand the threats in GNSS and how they can be mitigated. In that context I received one of the most challenging questions of my career: “Can we predict the future of GNSS security?” What is the status of civil and commercial GNSS security today? Which are the threats and risks and how they are mitigated? Where are we going and what shall we expect from the future? read more