Sensors Sensors 1424-8220 Molecular Diversity Preservation International (MDPI) 10.3390/s120608437 sensors-12-08437 Correction Correction: Renaudin, V. et al. Use of Earth's Magnetic Field for Mitigating Gyroscope Errors Regardless of Magnetic Perturbation. Sensors 2011, 11, 11390-11414 AfzalMuhammad Haris RenaudinValérie* LachapelleGérard Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada; E-Mails: haris.afzal@ucalgary.ca (M.H.A.); gerard.lachapelle@ucalgary.ca (G.L.) Author to whom correspondence should be addressed; E-Mail: renaudin.valerie@gmail.com; Tel.: +1-403-210-9802; Fax: +1-403-284-1980. 2012 20 06 2012 12 6 8437 8437 01 06 2012 20 06 2012 © 2012 by the authors; licensee MDPI, Basel, Switzerland. 2012

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Although the equations' derivation in our paper published in Sensors 2011 [1] is correct, a typo has been found in the summarizing Equations (48) and (49). The dot on the B in the skew matrix should be removed. Equations (48) and (49) should be corrected as: δ B ˙ Q S F k + 1 b = [ 0 3 × 3 − [ B Q S F k + 1 b × ] ] [ ɛ n δ b ω ] + [ 0 1 × 3 0 1 × 3 0 1 × 3 [ ω ^ B b × ] ] [ 0 3 × 1 η B ] [ δ B Q S F k + 1 n δ B ˙ Q S F k + 1 b ] ︸ δ z = [ − [ B Q S F k n × ] 0 3 × 3 0 3 × 3 − [ B Q S F k + 1 b × ] ] ︸ H QSF [ ɛ n δ b ω ] ︸ δ x + [ − C b n ω ^ B b ] η B

Reference AfzalM.H.RenaudinV.LachapelleG.Use of Earth's Magnetic Field for Mitigating Gyroscope Errors Regardless of Magnetic PerturbationSensors201111113901141410.3390/s11121139022247672