In support of Andrew's training objectives, and to learn more about the performance of NovAtel's products in an unusual environment, we began investigating what equipment we could realistically deploy on a human body in a wingsuit scenario.  Given the obvious restrictions of the tight-fitting wingsuit, we concluded that the OEM615's smaller size and power consumption were ideal for this man-mounted application - while still allowing the use of dual-frequency GPS+GLONASS ALIGN at 20Hz with up to 50 Hz raw measurement logging.

Equipment Details:

  • OEM615 receiver itself is slightly less than 36 cm3 and only 24 grams
  • When loaded with ALIGN firm­ware, generates high-preci­sion, real-time heading and pitch angles between two receivers.
  • Power was provided by a 1.3 A-h, 12 V battery
  • Two compact (69 mm diameter; 22 mm height; 162 grams) L1/L2 GPS/GLONASS active antennas, the G5Ant-2AMNS1 from NovAtel's subsidiary, Antcom Corporation
  • For data collection we employed an ASUS Eee PC from ASUSTeK Computer Inc., with data logged via USB in a console-based script.

To support post-processing analysis we also set up a SMART-MR10™ receiver in the drop zone and collected static carrier phase and pseudorange data for the entire day of test (approx 12 hours).  While it is not typically meant to serve as a precise base station, the SMART-MR10 is equipped with the same Pinwheel® Antenna technology as NovAtel's survey-grade GPS-700 series of antennas, and includes an integral OEMV-3G receiver that is commonly used in surveying equipment.  The integrated package of the SMART-MR10 made for a simpler setup and still provided excellent performance.