Spinning projectile’s angular measurement using crest and trough data of a geomagnetic sensor

Zhou, Yukun; Zhang, Xiaoyue; Xiao, Wan

doi:10.1088/1361-6501/aad0c7

Cited by 14 publications

(9 citation statements)

References 25 publications

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“…As we all know, the higher the attitude update rate, the higher the accuracy of pose estimation. In order to improve the attitude update rate, Zhou et al [16] proposed a Crest and Trough Method. This method introduces two reference curves B w b , B v b by linearly computing the actual output of the three-axis magnetometer.…”

Section: ) Crest and Trough Methodsmentioning

confidence: 99%

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Magnetometer-Based Phase Shifting Ratio Method for High Spinning Projectile’s Attitude Measurement

Zhao

Liu

et al. 2019

IEEE Access

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Accurate measurement of high spinning projectiles' attitude is the basis of guidance and control. In order to reduce the attitude measurement error and improve the attitude update rate, a magnetometerbased phase shifting ratio method is proposed in this paper. This method does not introduce additional installation errors as the existing methods, simplifies the calibration of the extreme value ratio-pitch angle curve, and makes full use of the measurement data of the sensors. The attitude update is synchronized with the magnetometer output without using the local geomagnetic information. Simultaneously, the local geomagnetic errors are avoided. The results of numerical simulation and semi-physical simulation experiments show that compared with the three orthogonal ratio method and the crest and trough method, the proposed algorithm in this paper can increase the attitude update rate by more than 2 times and the attitude calculation accuracy can be enhanced by 30%. INDEX TERMS Magnetometer, phase shifting, extreme ratio, attitude measurement, high spinning projectile.

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Section: ) Crest and Trough Methodsmentioning

confidence: 99%

“…At the same time, this method can performed four attitude update in one roll cycle. Zhou et al [16] proposed a crest and trough method. This method can double the attitude update rate in one roll cycle, but increased the previous curve calibration workload.…”

Section: Introductionmentioning

confidence: 99%

Magnetometer-Based Phase Shifting Ratio Method for High Spinning Projectile’s Attitude Measurement

Zhao

Liu

et al. 2019

IEEE Access

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“…In order to measure the attitude of the high-spin projectile, various approaches have been proposed by numerous scholars. According to published literatures, the main sensors used for high-spin attitude measurement are as follow: solar azimuth sensor [ 6 ], continuous-wave radar [ 7 ], infrared sensor [ 8 ], Global Navigation Satellite System (GNSS) [ 9 ], magnetometer [ 10 ], accelerometer [ 11 ], gyroscope, [ 12 ] and so on. The measurement based on the solar azimuth sensor has high requirements for the visible conditions of the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Roll Angular Rate Measurement for High Spinning Projectiles Based on Redundant Gyroscope System

Zhang

et al. 2020

Micromachines

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Precision-guided projectiles, which can significantly improve the accuracy and efficiency of fire strikes, are on the rise in current military engagements. The accurate measurement of roll angular rate is critical to guide a gun-launched projectile. However, Micro-Electro-Mechanical System (MEMS) gyroscope with low cost and large range cannot meet the requirement of high precision roll angular rate measurement due to the limitation by the current technology level. Aiming at the problem, the optimization-based angular rate estimation (OBARS) method specific for projectiles is proposed in this study. First, the output angular rate model of redundant gyroscope system based on the autoregressive integrated moving average (ARIMA) model is established, and then the conventional random error model is improved with the ARIMA model. After that, a Sage-Husa Adaptive Kalman Filter (SHAKF) algorithm that can suppress the time-varying process and measurement noise under the flight condition of the high dynamic of the projectile is designed for the fusion of dynamic data. Finally, simulations and experiments have been carried out to validate the performance of the method. The results demonstrate the proposed method can effectively improve the angular rate accuracy more than the related traditional methods for high spinning projectiles.

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“…Under the condition of high overload, high rotation speed, and limited space, the accurate measurement of the attitude of high spinning projectiles has not been effectively solved. According to the published literature, the currently used attitude measuring sensors mainly have gyroscope [2], accelerometer [3], magnetometer [4], GNSS [5], continuous wave radar [6], infrared sensor [7], solar azimuth sensor [8], and so on. Among them, the gyroscope is a typical angular rate sensor.…”

Section: Introductionmentioning

confidence: 99%

Extraction and Filter Algorithm of Roll Angular Rate for High Spinning Projectiles

Zhao

Liu

et al. 2019

Mathematical Problems in Engineering

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The accurate measurement of roll angular rate for high spinning projectile has long been a challenging problem. Aiming to obtain the accurate roll angular rate of high spinning projectile, a novel extraction and filter algorithm, BSCZT-KF, is proposed in this paper. Firstly, a compound angular motion model of high spinning projectile is established. According to the model, we translate the roll angular rate measurement problem into a frequency estimation problem. Then the improved CZT algorithm, BSCZT, was employed to realize an accurate estimation of the narrowband signal frequency. Combined with the peak detection method, the BSCZT-KF algorithm is presented to further enhance the frequency estimation accuracy and the real-time performance. Finally, two sets of actual flight tests were conducted to verify the effectiveness and accuracy of the algorithm. The test results show that the average error of estimated roll angular rate is about 0.095% of the maximum of roll angular rate. Compared with the existing methods, the BSCZT-KF has the highest frequency estimation accuracy for narrowband signal.

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Spinning projectile’s angular measurement using crest and trough data of a geomagnetic sensor

Cited by 14 publications

References 25 publications

Magnetometer-Based Phase Shifting Ratio Method for High Spinning Projectile’s Attitude Measurement

Magnetometer-Based Phase Shifting Ratio Method for High Spinning Projectile’s Attitude Measurement

Roll Angular Rate Measurement for High Spinning Projectiles Based on Redundant Gyroscope System

Extraction and Filter Algorithm of Roll Angular Rate for High Spinning Projectiles

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