Multilateration, or hyperbolic positioning, is the process of locating an object based on the Time Difference of Arrival (TDOA) of a signal emitted from that object to three or more sensors. When a signal is transmitted from an object, it will be received by two spacially separate sensors at different times. The time difference is then used to calculate the object's position. By using three or more sensors, a complete position analysis can be attained by determining the intersection point of the three or more hyperbolas formed by the TDOA from each sensor pair.
For ATM applications, multilateration provides the same level of fleet coverage as traditional SSR (ie. all aircraft or vehicles equipped with an operational Mode A, Mode C or Mode S transponder) while also decoding all ADS-B position reports. Multilateration will generally provide higher accuracy, greater update rate, better coverage and improved reliability when compared to traditional SSR, and will do so at a much lower initial cost and with
“ERA’s multilateration systems have a long track record of performance and reliability in both surface and en-route applications. The bottom line is that they just work and they work better and more economically than SSR.”
- Mr. Ivan Uhlir, Czeh ANS
“We evaluated surveillance solutions and concluded multilateration provided the best surface coverage and the flexibility to accommodate our future growth. After a competitive evaluation, ERA was chosen by Siemens for its leading technology and proven delivery capabilities supported by an extensive list of worldwide references.”
- Peter Marais, Executive Manager ATM/CNS Planning for ATNS
Pardubice, November 20th, 2013 The ERA MSS system installed at the Sochi International Airport went officially operational in November to ensure the future safety of thousands of participants flying to the Caucasus region of Russia as part of the 2014 Olympic Games.
Pardubice, October 18th, 2013 Participants in the NATO Airforce Armaments Group summit from several NATO countries visited the headquarters of ERA Company in Pardubice on October 18th 2013. The primary goal of the visit was the introduction of alternative radiolocation methods and a presentation of the ERA military solutions portfolio (particularly its precision approach functionality) to members of the Aerospace Capability Group 5 on Global Mobility.
Tashkent, October 2nd - 4th, 2013 Two specialists from ERA Company were invited to the conference EURASIA held in Tashkent on October 2nd – 4th, 2013. ERA traditionally participated as a permanent observer at this 28th gathering of the coordinating council and group of aeronavigation experts (KGE) from eight post-soviet republics.
Prague, September 2013 The ERA Company gratefully accepted an invitation from the Czech Air National Service Provider at the beginning of autumn of this year and organized a two days workshop for its guests at the ANSP headquarters in Jeneč in order to present the results of newly developed surveillance technologies such as MSPSR.
Prague, September, 2013 ERA Company took part in the 71th NEDBAG (NATO Emitter DataBase Advisory Group) conference held in Prague from September 23th – 26th 2013.