What are the potential advantages and disadvantages of using a strapdown inertial navigation system for spacecraft navigation?
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Strapdown inertial navigation systems (SINS) offer potential advantages such as lower cost, reduced size, and greater reliability compared to gimbal systems ^[Shkel]. SINS are commonly used for navigation applications on or near the Earth's surface, where navigation data is expressed in terms of velocity components and latitude, longitude, and altitude ^[Shkel]. Attitude initialization can be achieved by inertial sensors if the IMU is stationary with respect to the Earth, and gyrocompassing can provide yaw angle information by measuring the Earth's rotation ^[Shkel]. However, SINS can have disadvantages such as increased oscillation frequency of attitude errors due to rotational modulation ^[He]. To address this, a dual-inertial navigation scheme that combines SINS with a rotation inertial navigation system has been proposed to improve attitude error accuracy ^[He]. Overall, SINS offer benefits in terms of cost, size, and reliability, but considerations must be made for attitude error and oscillation frequency ^[He] ^[Shkel].
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04 Sep 2022 | The provided paper does not discuss the potential advantages and disadvantages of using a strapdown inertial navigation system for spacecraft navigation. |
04 Sep 2022 | The provided paper does not discuss the potential advantages and disadvantages of using a strapdown inertial navigation system for spacecraft navigation. |
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