Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7130590 | Optics & Laser Technology | 2014 | 5 Pages |
Abstract
In order to suppress the error accumulation effect of inertial navigation system (INS), an idea of building an integrated navigation system using a laser Doppler velocimeter (LDV) together with strapdown inertial navigation (SIN) is proposed. The basic principle of LDV is expounded while a novel LDV with advanced optical structure is designed based on the split and reuse technique, and the process of dead reckoning using an integrated system which consists of LDV and SIN is discussed detailedly. The results of theory and experiment show that: the split and reuse type LDV has great advantages of high accuracy and signal-to-noise ratio, which has greatly enhanced the position accuracy of the navigation system. The position error has been decreased from 1166Â m in 2Â h with pure SIN to 20Â m in 2Â h with the integrated system.
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Authors
Jian Zhou, Xiaoming Nie, Jun Lin,