L-band receiver enables centimetre accuracy in GNSS
Claimed to be an affordable approach to bringing centimetre-level accuracy to global navigation satellite system (GNSS) receivers, the NEO-D9S GNSS correction data receiver module from u-blox receives GNSS correction data from correction service providers broadcast on the L-band (1525 to 1559MHz).
A host processor decrypts this correction data and provides it to a high precision GNSS receiver, combining corrections directly with readings from the satellite constellations for more accurate position readings than those offered by GNSS signals alone, explains u-blox.
Using the NEO-D9S will also increase the availability of high precision GNSS positioning data in areas with limited connectivity and reduce the amount of cellular data consumed by positioning receivers. Key customers are expected to include automotive makers, Tier 1 and OEMs, industrial system integrators offering position-correction services and any other applications that rely upon very accurate positioning at low cost.
The NEO-D9S module is a correction-only receiver, based on u-blox’s ninth generation (D9) platform. It will integrate easily with the u-blox F9 RTK GNSS receivers if required. The module also integrates a TCXO and SAW filter to ensure RF sensitivity and resilience to interference from adjacent channels.
The module includes the algorithms necessary to decode satellite data broadcasts. It is configured to work initially with whichever correction service has been set as default, but can be configured for any L-band data broadcast. It stores its configuration settings in non-volatile memory.
u‑blox provides positioning and wireless communication technologies for the automotive, industrial, and consumer markets. Its portfolio enables people, vehicles and machines to determine their precise position and communicate wirelessly over cellular and short range networks. The company offers a broad portfolio of chips, modules and a growing ecosystem of product supporting data services. u-blox is headquartered in Thalwil, Switzerland and has offices in Europe, Asia, and the USA.
