Lambda:4 | Technologies
Locating by high frequency radio waves
Localisation by high frequency is not only the radar well-known from aviation. The maritime navigation has dealt with the localisation of vessels in distress very early on and a so called Adcock direction finder was built for this application. The Adcock direction finder was imagined by the British inventor and physicist of the same name in the year 1919. These bearing systems consist of four antennas forming a square, which are usually installed around the ship’s mast. A small display indicates by means of an ellipse the direction from which the distress signal comes.
In the automotive sector a navigation system is installed or fastened to the windscreen as portable equipment in many vehicles nowadays. The current position of the vehicle is determined via GPS – a locating method too by means of high frequency radio.
The localisation by high frequency radio waves is a technology of long standing in the spacious area of aviation and navigation. The application in complex environments like ashore, in cities and within buildings is not common until now.
Radio engineering in the digital age
Due to the rapid advancement of radio engineering today’s market offers low cost devices for most frequency ranges and applications. In the age of mobile phones, UMTS, WLAN, radio mouse for the PC and the many RFID applications, different features are achieved:
- low price components
- energy-saving (long battery life or „passive “)
- highly integrated compact components with huge functionality
- high density administration of many participants, with mobile phones by protocols and digital communication
- different ranges depending upon requirement
Radio engineering for economical localisation even in complex environment
Here the technology of Lambda:4 sets a starting point. We use and extend the existing knowledge of localisation by high frequency radio waves employing components nowadays very efficient but also inexpensive. The result is the development of completely new ranges of application for this technology.
