ETLG Inertial Aerosystems is introducing the VN-200, a miniature, high-performance GPS-Aided Inertial Navigation System (GPS/INS) that combines MEMS inertial sensors, a high-sensitivity GPS receiver, and advanced Kalman filtering algorithms to provide optimal estimates of position, velocity, and attitude.
The VN-200 was the first GPS/INS in a single surface mount package. At the size of a postage stamp, the VN-200 SMD requires only a single 3.2–5.5V power supply, and can be directly embedded into a user’s electronics. Interface with the VN-200 SMD is made easy by using either the serial 3V TTL (UART) or the Serial Peripheral Interface (SPI).
ETLG’s VN-200 is available in two different packaging options: the surface mount device (SMD) and the “Rugged” module. The VN-200 incorporates an onboard high sensitivity 50-channel u-blox GPS receiver. A U.FL (VN-200 SMD) or MMCX (VN-200 Rugged) connector is provided for connection to an external active GPS antenna.
Utilising advancements in MEMS technology, the VN-200 incorporates a 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer, and a barometric pressure sensor. High performance is achieved by eliminating common error sources such as sensitivity to supply voltage variations and temperature dependent hysteresis. Each VN-200 is individually tested and characterised over the full operating temperature range to determine the bias, sensitivity and cross-axis alignment for each individual sensor. Calibration coefficients are stored on the sensor and are fully temperature compensated in real time.
For further information about the VN-200 miniature, high-performance GPS/INS please visit www.inertial.co.uk.