Verkotan Oy

Jani Kallankari

Pekka Jokitalo

Pertti Mäkikyrö

Kari Komonen

The present invention discloses a test method and arrangement for testing GNSS signals within a test chamber. The test chamber inner walls are supplied with transmitting antennas supplying simulated satellite signals, originating from a signal generator. Dynamic satellite movements are simulated by interpolating several transmitted signals in order to create a single true satellite transmission signal. All visible satellites are taken into account in order to create simulated GPS signals across the whole virtual sky. Phantom objects may be used near the device under test and the phantom object may be moved or rotated in preset patterns within the test chamber. Radio channel information can be modelled according to several different real-life environments, and also reflections from any surfaces and different multipath options are taken into account in the modeling, and also in the transmission antenna angles towards the device under test. Main application areas of the invention comprise sports watches, health related or any other monitoring devices, or any devices benefiting from the positioning information, also relating to animal applications. The device may be carried or worn by the human user or any other living creature, as a wearable positioning device.

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Oulu, Finland

Jani Kallankari