Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse

Cunqian FENG; Jiang LI; Darong HUANG; Xiaowei HU; Lixun HAN

doi:10.11999/JEIT200075

Volume 43 Issue 3

Mar. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(3): 564-571

Cunqian FENG, Jiang LI, Darong HUANG, Xiaowei HU, Lixun HAN. Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse[J]. Journal of Electronics & Information Technology, 2021, 43(3): 564-571. doi: 10.11999/JEIT200075

Citation:

Cunqian FENG, Jiang LI, Darong HUANG, Xiaowei HU, Lixun HAN. Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse[J]. Journal of Electronics & Information Technology, 2021, 43(3): 564-571. doi: 10.11999/JEIT200075

Citation:

Cunqian FENG, Jiang LI, Darong HUANG, Xiaowei HU, Lixun HAN. Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse[J]. Journal of Electronics & Information Technology, 2021, 43(3): 564-571. doi: 10.11999/JEIT200075

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Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse

doi: 10.11999/JEIT200075

Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China

Funds: The National Natural Science Foundation of China (61701526, 61701528), The Shaanxi Natural Science Basic Research Project (2019JQ-336)

Received Date: 2020-01-17
Rev Recd Date: 2020-09-29

Available Online: 2020-11-17

Publish Date: 2021-03-22

Abstract

Abstract

Multi-ballistic targets have different translational parameters in midcouse. The former translational compensation methods for single target and group targets with the same translational parameters are no longer applicable. In order to solve this problem, a new method of multi-target translation parameters and micro-motion period estimation is proposed based on high-order ambiguity, delayed conjugate multiplication and time-frequency distribution processing. First, the second-order translational acceleration and micro-motion period are estimated by using the high-order ambiguity. Then, the first-order translational acceleration is estimated by the delayed conjugate multiplication of the echo after the first compensation. Finally, the residual translational velocity is estimated by the weighted accumulation of the time axis based on the difference of the time-frequency image of the echo after the second compensation. The simulation results show the effectiveness of the proposed algorithm for multi-target estimation of different translational parameters.
- Micro-Doppler,
- Ballistic targets,
- Translation compensation,
- High-order ambiguity,
- Delayed conjugate multiplication

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References(16)

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