Abstract:
The paper presents our study on “dilution of precision” factors in the problem of estimating vehicle's velocity using a three-beam doppler lidar. Such a system has been proposed as an addition or replacement to the differential GNSS velocity solution in an airborne gravimetry system. We analytically derive optimal directions of lidar beams and use numerical simulation to obtain their attitude which minimizes the error covariance of estimated vertical velocity.
Key words:doppler lidar, airborne gravimetry, estimation problem, dilution of precision.
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