Study on linear field of strapdown semi-active laser seeker

Xin, 张鑫 Zhang; Zhi-Yuan, 杜智远 Du; Yan-feng, 乔彦峰 Qiao; Hui, 刘慧 Liu; Yang, 白杨 Bai; Ming-chao, 朱明超 Zhu; Li-Gang, 刘立刚 Liu; Hong-guang, 贾宏光 Jia

doi:10.3788/co.20150803.0415

Cited by 2 publications

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“…However, a semi-active laser seeker cannot measure the angles when the object is out of the linear field of view (FOV) [7]. This problem is even worse for a strapdown semi-active laser seeker [8]. It is still one of the bottlenecks that restricts the overall application of strapdown semi-active laser seekers.…”

Section: Introductionmentioning

confidence: 99%

“…First, the amount by which the linear area of the detector can be expanded and the seeker FOV can be increased via optics design is very limited. Second, when the linear FOV increases, the angle measurement accuracy of the seeker will decrease, which will affect the guidance accuracy of the seeker [8]. Third, increasing the FOV of the seeker results in a shortening of the detection range, and the detection range is very important for the terminal guidance of a missile.…”

Section: Introductionmentioning

confidence: 99%

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Angle Measurement of Objects outside the Linear Field of View of a Strapdown Semi-Active Laser Seeker

Zheng

Chen

Zhou

2018

Sensors

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The accurate angle measurement of objects outside the linear field of view (FOV) is a challenging task for a strapdown semi-active laser seeker and is not yet well resolved. Considering the fact that the strapdown semi-active laser seeker is equipped with GPS and an inertial navigation system (INS) on a missile, in this work, we present an angle measurement method based on the fusion of the seeker’s data and GPS and INS data for a strapdown semi-active laser seeker. When an object is in the nonlinear FOV or outside the FOV, by solving the problems of space consistency and time consistency, the pitch angle and yaw angle of the object can be calculated via the fusion of the last valid angles measured by the seeker and the corresponding GPS and INS data. The numerical simulation results demonstrate the correctness and effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Angle Measurement of Objects outside the Linear Field of View of a Strapdown Semi-Active Laser Seeker

Zheng

Chen

Zhou

2018

Sensors

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A Novel LOS Rate Estimation Method Based on Images for Strap-down Inertial Guidance

Luo

et al. 2020

J. Phys.: Conf. Ser.

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With the development of technology, precision guided weapon is becoming more and more important in modern war. In order to launch our recent guidance system on medium and small guided weapons, we propose a method to obtain the LOS rate by combining information from both camera and gyroscope. To be specific, we firstly calculate the body LOS angle through transforming the image pixel coordinate system into the image physical coordinate system according to camera internal parameters; then subtract the missile motion information contained in the measurement signal of the seeker and finally the LOS rate is deduced. Comparing with traditional gimballed seekers, our strap-down seekers with camera have significantly reduced costs and influences caused by external environments on platform.

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Study on linear field of strapdown semi-active laser seeker

Cited by 2 publications

References 0 publications

Angle Measurement of Objects outside the Linear Field of View of a Strapdown Semi-Active Laser Seeker

Angle Measurement of Objects outside the Linear Field of View of a Strapdown Semi-Active Laser Seeker

A Novel LOS Rate Estimation Method Based on Images for Strap-down Inertial Guidance

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