机-弹双基前视SAR俯冲段轨迹设计方法
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摘要
机-弹双基前视合成孔径雷达(airplane-missile bistatic forward-looking synthetic aperture radar,AMBFL-SAR)为协同作战中导弹俯冲末段全程二维高分辨成像的精确制导提供了解决方案。由于机-弹平台相差甚远的动态特性,传统单一平台近似规划方法已不再适用。针对该问题,首先分析了AMBFL构型下的二维分辨特性,得出不同弹目距处的主要矛盾;然后在二维分辨率和分辨单元面积双重指标约束下,利用发射机参数对系统分辨能力的影响规律,提出飞机飞行轨迹设计方法。该方法设计出的轨迹可有效满足成像指标要求,且利于各平台的制导控制。最后,通过仿真结果验证了该算法的有效性。
Airplane-missile bistatic forward-looking synthetic aperture radar(AMBFL-SAR)provides a solution for the precise guidance during the whole terminal diving period of the missile in collaborative operations.It can perform two-dimensional(2 D)high-resolution imaging and target positioning.The traditional single platform approximation planning method is no longer applicable because of the dynamic characteristics of the missile airborne platform.Aiming at this problem,the resolution property of the special configuration in the diving period is analyzed firstly.And the main contradiction in different range distances is obtained.Then under the constraint of 2 Dresolution and resolution cell area,the trajectory design method is proposed based on the influence rule of transmitter parameters on the system resolution.The method can effectively satisfy the imaging quality,and the trajectory is conducive to the guidance and control of each platform.Finally,the simulation results verify the validity of the proposed algorithm.
Airplane-missile bistatic forward-looking synthetic aperture radar(AMBFL-SAR)provides a solution for the precise guidance during the whole terminal diving period of the missile in collaborative operations.It can perform two-dimensional(2 D)high-resolution imaging and target positioning.The traditional single platform approximation planning method is no longer applicable because of the dynamic characteristics of the missile airborne platform.Aiming at this problem,the resolution property of the special configuration in the diving period is analyzed firstly.And the main contradiction in different range distances is obtained.Then under the constraint of 2 Dresolution and resolution cell area,the trajectory design method is proposed based on the influence rule of transmitter parameters on the system resolution.The method can effectively satisfy the imaging quality,and the trajectory is conducive to the guidance and control of each platform.Finally,the simulation results verify the validity of the proposed algorithm.
引文
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[2]WANG R,DENG Y K.Bistatic SAR system and signal processing technology[M].Springer,2018.
[3]杨建宇.双基地合成孔径雷达技术[J].电子科技大学学报,2016,45(4):482-501.YANG J Y.Bistatic synthetic aperture radar technology[J].Journal of University of Electronic Science and Technology of China,2016,45(4):482-501.
[4]刘鸿福,贾凡,陈璟.飞行器雷达隐身轨迹规划技术综述[J].飞航导弹,2015(11):77-81.LIU H F,JIA F,CHEN J.Overview of radar stealth trajectory planning technology for aircraft[J].Aerial Missile,2015(11):77-81.
[5]刘鸿福,周文宏,陈少飞.隐身飞机突防建模及可低探测性轨迹规划[J].火力与指挥控制,2016,41(9):36-45.LIU H F,ZHOU W H,CHEN S F.Low obser vability trajectory planning for stealth aircraft penetrates netted radars[J].Fire Control&Command Control,2016,41(9):36-45.
[6]XU J,ZENG Y,ZHANG R.UAV-enabled wireless power transfer:trajectory design and energy optimization[J].IEEETrans.on Wireless Communications,2018:1-1.
[7]CARDILLO G P.On the use of the gradient to determine bistatic SAR resolution[C]∥Proc.of the Antennas and Propagation Society International Symposium,1990:1032-1035.
[8]MEI H W,LIU M Q,LI Y C,et al.Thorough understanding property of bistatic forward-looking high-speed maneuvering platform SAR[J].IEEE Trans.on Aerospace and Electronic Systems,2017,53(4):1826-1845.
[9]MENG Z Q,LI Y C,XING M D,et al.Property analysis of bistatic forward-looking SAR with arbitrary geometry[J].Journal of Systems Enginerring and Electronics,2016,27(1):111-127.
[10]MEI H W,MENG Z Q,LI Y C.Airbrone bistatic forwardlooking SAR using the polynomial NCS algorithm[J].IEEESensors Letters,2018,2(3):1-1.
[11]孟自强,李亚超,汪宗福,等.弹载双基前视SAR俯冲段弹道设计方法[J].系统工程与电子技术,2015,37(4):768-774.MENG Z Q,LI Y C,WANG Z F,et al.Design method of MBFL-SAR trajectory during terminal diving period[J].Systems Engineering and Electronics,2015,37(4):768-774.
[12]WU J J,YANG J Y,YANG H Y.et al.Optimal geometry configuration of bistatic forward-looking SAR[C]∥Proc.of the IEEE International Conference on Acoustics,Speech and Signal Processing,2009:1117-1120.
[13]SUN Z C,WU J J,YANG J Y,et al.Path planning for GEO-UAV bistatic SAR using constrained adaptive multiobjective differential evolution[J].IEEE Trans.on Geoscience&Remote Sensing,2016,54(11):6444-6457.
[14]YAN F F,CHANG W C,LI X Y.Beam footprint detection and tracking for non-cooperative bistatic SAR[J].Radio Engineering,2016,25(3):592-601
[15]YAN F F,CHANG W C,LI X Y.Beam footprint detection for non-cooperative spaceborne airborne bistatic SAR[C]∥Proc.of the Progress in Electromagnetics Rsearch Symposium,2015.
[16]张菁,何友,彭应宁,等.新一代战斗机技术特征论证[J].系统工程与电子技术.2018,40(8):1754-1759.ZHANG J,HE Y,PENG Y N,et al.Technical features demonstration of the next generation fighter[J].Systems Engineering and Electronics,2018,40(8):1754-1759.