Abstract: This article investigates a two-frame group representation method for the strapdown inertial navigation system (SINS) aided by the Doppler velocity log (DVL). The SINS-calculated attitude, ...

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From the Kodak Ektar H35 to the Pentax 17, a number of these new film cameras introduced to keep up with the retro craze are half-frame cameras. While the half-frame camera has a long history, the ...