现代防御技术 ›› 2026, Vol. 54 ›› Issue (5): 18-31.DOI: 10.3969/j.issn.1009-086x.2026.05.002
收稿日期:2025-07-17
修回日期:2025-08-13
出版日期:2026-10-28
发布日期:2026-11-03
通讯作者:
蒋清富
作者简介:闫丽坤(2002-),女,山西吕梁人。硕士生,研究方向为雷达通信一体化。
Received:2025-07-17
Revised:2025-08-13
Online:2026-10-28
Published:2026-11-03
Contact:
Qingfu JIANG
摘要:
飞行器集群作战作为未来战场环境下的新型作战样式,面临卫星导航拒止、电磁干扰问题以及探测、定位、通信多功能与低体积、重量和功耗(SWaP)矛盾的问题。解决这些问题的关键在于高效的探测、定位、通信一体化波形设计,用以获取集群内各飞行器之间的相对时空关系以及集群相对于非合作目标之间的相对时空关系。回顾总结了探测、定位、通信一体化技术的发展阶段与发展趋势,梳理了面向集群应用的多功能一体化波形技术体系和研究现状,从应用场景、现有几种一体化波形性能及其改进方法进行深入分析,并针对各波形性能对其适用场景做了总结,对此领域未来的潜在发展方向进行了展望,旨在为集群探测、定位、通信一体化波形设计提供指导。
中图分类号:
闫丽坤, 蒋清富. 飞行器集群探测、定位、通信一体化波形技术发展综述[J]. 现代防御技术, 2026, 54(5): 18-31.
Likun YAN, Qingfu JIANG. Review on Development of Integrated Waveform Technology for Detection, Positioning, and Communication of Aircraft Swarm[J]. Modern Defense Technology, 2026, 54(5): 18-31.
| 复用方式 | 原理 | 存在的问题 |
|---|---|---|
| 空分复用 | 基于有源相控阵波束成形技术,实现对波束指向的控制 | 干扰严重 |
| 时分复用 | 通过频段划分实现多功能 | 频谱利用率低 |
| 频分复用 | 通过时隙划分实现多功能 | 依赖严格的时间同步 |
| 码分复用 | 基于正交扩频技术实现多功能 | 正交码集有限 |
表1 一体化复用方式对比
Table 1 Comparison of integrated multiplexing methods
| 复用方式 | 原理 | 存在的问题 |
|---|---|---|
| 空分复用 | 基于有源相控阵波束成形技术,实现对波束指向的控制 | 干扰严重 |
| 时分复用 | 通过频段划分实现多功能 | 频谱利用率低 |
| 频分复用 | 通过时隙划分实现多功能 | 依赖严格的时间同步 |
| 码分复用 | 基于正交扩频技术实现多功能 | 正交码集有限 |
| 波形 | 模糊函数 | 峰均比 | 多普勒容限 | 频谱效率 | 计算复杂度 |
|---|---|---|---|---|---|
| OFDM | 呈图钉型,零多普勒图中有2个对称旁瓣,零时延模糊图中存在多个旁瓣 | 较高 | 高速移动环境下误码率急剧恶化 | 较高 | 较低 |
| FBMC | 呈图钉型,距离分辨率与OFDM相同,零时延模糊图主瓣较宽,无明显旁瓣,速度分辨率相比OFDM有所下降 | 高于传统OFDM | 误码率较OFDM有所改善,但仍不适用于高速环境 | 高于传统 OFDM | 较高 |
| OTFS | 呈图钉型,ISLR和PSLR表现均优于OFDM | 多普勒域数据点数较小时,OTFS信号的PAPR低于OFDM信号 | 所有移动性条件下均优于OFDM,且高移动性环境中表现更佳 | 高于传统 OFDM | 高 |
表2 基于通信信号的多载波一体化波形对比
Table 2 Multi-carrier integrated waveform comparison based on communication signal
| 波形 | 模糊函数 | 峰均比 | 多普勒容限 | 频谱效率 | 计算复杂度 |
|---|---|---|---|---|---|
| OFDM | 呈图钉型,零多普勒图中有2个对称旁瓣,零时延模糊图中存在多个旁瓣 | 较高 | 高速移动环境下误码率急剧恶化 | 较高 | 较低 |
| FBMC | 呈图钉型,距离分辨率与OFDM相同,零时延模糊图主瓣较宽,无明显旁瓣,速度分辨率相比OFDM有所下降 | 高于传统OFDM | 误码率较OFDM有所改善,但仍不适用于高速环境 | 高于传统 OFDM | 较高 |
| OTFS | 呈图钉型,ISLR和PSLR表现均优于OFDM | 多普勒域数据点数较小时,OTFS信号的PAPR低于OFDM信号 | 所有移动性条件下均优于OFDM,且高移动性环境中表现更佳 | 高于传统 OFDM | 高 |
| 波形 | 复杂度量级 |
|---|---|
| OFDM | O(MN lb M) |
| FBMC | O(MN lb M+KMN) |
| OTFS | O(MN lb M+MN lb N) |
表3 各波形计算复杂度对比
Table 3 Comparison of computational complexity among waveforms
| 波形 | 复杂度量级 |
|---|---|
| OFDM | O(MN lb M) |
| FBMC | O(MN lb M+KMN) |
| OTFS | O(MN lb M+MN lb N) |
| 分类 | 波形 | 优点 | 缺点 |
|---|---|---|---|
| 单载波 | LFM | 能够很好地兼容现有雷达体制,且信号包络恒定,实现简单 | 通信的数据率和频谱效率低 |
| 多载波 | OFDM-LFM | 抗多径衰落能力强,系统兼容性好,高距离分辨率与速度分辨率 | 由于LFM信号的扩频使频谱效率较低 |
| OFDM | 不存在距离速度耦合,具有较高的频谱利用率 | 高PAPR,高速场景下多普勒容忍度差,模糊函数旁瓣较高 | |
| FBMC | 频谱利用率高,模糊函数旁瓣低 | 高PAPR,高速场景下多普勒容忍度较差,计算复杂度较高 | |
| OTFS | PAPR较低,模糊函数特性优于OFDM,频谱效率高,多普勒容限高 | 在实际应用和研究中还不成熟,计算复杂度高,技术实现复杂 |
表4 探测、定位、通信一体化波形优缺点对比
Table 4 Comparison of advantages and disadvantages of detection, positioning, and communication integrated waveforms
| 分类 | 波形 | 优点 | 缺点 |
|---|---|---|---|
| 单载波 | LFM | 能够很好地兼容现有雷达体制,且信号包络恒定,实现简单 | 通信的数据率和频谱效率低 |
| 多载波 | OFDM-LFM | 抗多径衰落能力强,系统兼容性好,高距离分辨率与速度分辨率 | 由于LFM信号的扩频使频谱效率较低 |
| OFDM | 不存在距离速度耦合,具有较高的频谱利用率 | 高PAPR,高速场景下多普勒容忍度差,模糊函数旁瓣较高 | |
| FBMC | 频谱利用率高,模糊函数旁瓣低 | 高PAPR,高速场景下多普勒容忍度较差,计算复杂度较高 | |
| OTFS | PAPR较低,模糊函数特性优于OFDM,频谱效率高,多普勒容限高 | 在实际应用和研究中还不成熟,计算复杂度高,技术实现复杂 |
| [1] | 罗巧云, 高勇强. 美军第四代战斗机F-35"联合攻击战斗机"最卓越的航空电子系统[J]. 电子科学技术评论, 2005(4): 5-8. |
| LUO Qiaoyun, GAO Yongqiang. F-35 'Joint Strike Fighter' the Most Outstanding Avionics System[J]. Review of Electronics Science and Technology, 2005(4): 5-8. | |
| [2] | 朱伟强, 王克让, 许华健, 等. 多功能综合一体化技术发展综述[J]. 航天电子对抗, 2020, 36(3): 1-10. |
| ZHU Weiqiang, WANG Kerang, XU Huajian, et al. Development of Multifunctional Integration Technology[J]. Aerospace Electronic Warfare, 2020, 36(3): 1-10. | |
| [3] | NOZETTE S, SPUDIS P, BUSSEY B, et al. The Lunar Reconnaissance Orbiter Miniature Radio Frequency (Mini-RF) Technology Demonstration[J]. Space Science Reviews, 2010, 150(1): 285-302. |
| [4] | JACYNA G M, FELL B, MCLEMORE D. A High-Level Overview of Fundamental Limits Studies for the DARPA SSPARC Program[C]∥2016 IEEE Radar Conference (RadarConf). Piscataway: IEEE, 2016: 1-6. |
| [5] | 陈方舟, 黄靖皓, 赵阳辉. 美军无人“蜂群”作战技术发展分析[J]. 装备学院学报, 2016, 27(2): 34-37. |
| CHEN Fangzhou, HUANG Jinghao, ZHAO Yanghui. Analysis on Unmanned Swarm Fighting System of US Armed Forces[J]. Journal of Equipment Academy, 2016, 27(2): 34-37. | |
| [6] | CONDLIFFE J. A 100 Swarm-Drone, Dropped from Jets, Plans Its Own Moves: Once Launched, The Swarm Can Decide for Itself How Best to Execute a Mission[EB/OL]. (2017-01-10) [2025-01-02]. . |
| [7] | 曾浩, 吉利霞, 李凤, 等. 16QAM-LFM雷达通信一体化信号设计[J]. 通信学报, 2020, 41(3): 182-189. |
| ZENG Hao, JI Lixia, LI Feng, et al. 16QAM-LFM Waveform Design for Integrated Radar and Communication[J]. Journal on Communications, 2020, 41(3): 182-189. | |
| [8] | CHEN Xingbo, WANG Xiaomo, XU Shanfeng, et al. A Novel Radar Waveform Compatible with Communication[C]∥2011 International Conference on Computational Problem-Solving (ICCP). Piscataway: IEEE, 2011: 177-181. |
| [9] | ZHAO Zhilong, JIANG Defu. A Novel Integrated Radar and Communication Waveform Based on LFM Signal[C]∥2015 IEEE 5th International Conference on Electronics Information and Emergency Communication. Piscataway: IEEE, 2015: 219-223. |
| [10] | ZHANG Yu, LI Qingyu, HUANG Ling, et al. A Modified Waveform Design for Radar-Communication Integration Based on LFM-CPM[C]∥IEEE Vehicular Technology Conference. Piscataway: IEEE, 2017: 2046-2050. |
| [11] | 杨云飞, 马晓岩, 杨瑞娟, 等. CPM-LFM雷达通信一体化共享信号探测性能研究[J]. 空军预警学院学报, 2017, 31(3): 157-161. |
| YANG Yunfei, MA Xiaoyan, YANG Ruijuan, et al. Research on Detection Performance of Radar Communication Integrated Shared Signal Based on CPM-LFM[J]. Journal of Air Force Early Warning Academy, 2017, 31(3): 157-161. | |
| [12] | 姜孟超, 廖桂生, 杨志伟, 等. 一种NLFM-CPM雷达通信一体化信号设计[J]. 系统工程与电子技术, 2019, 41(1): 35-42. |
| JIANG Mengchao, LIAO Guisheng, YANG Zhiwei, et al. Signal Design for Integrated Radar and Communication Based on NLFM-CPM[J]. Systems Engineering and Electronics, 2019, 41(1): 35-42. | |
| [13] | 李晓柏, 杨瑞娟, 程伟. 基于Chirp信号的雷达通信一体化研究[J]. 雷达科学与技术, 2012, 10(2): 180-186. |
| LI Xiaobai, YANG Ruijuan, CHENG Wei. Integrated Radar and Communication Based on Chirp[J]. Radar Science and Technology, 2012, 10(2): 180-186. | |
| [14] | FAN Yawen, BAO Jingchao, ALJUMAILY M S, et al. Communications Via Frequency-Modulated Continuous-Wave Radar in Millimeter Wave Band[C]∥2019 IEEE Global Communications Conference (GLOBECOM). Piscataway, NJ, USA: IEEE, 2019: 1-7. |
| [15] | 赵忠凯, 石妙. 基于OFDM-LFM的雷达通信一体化波形设计[J]. 应用科技, 2021, 48(3): 73-77. |
| ZHAO Zhongkai, SHI Miao. Integrated Radar and Communication Waveform Design Based on OFDM-LFM[J]. Applied Science and Technology, 2021, 48(3): 73-77. | |
| [16] | 刘冰凡, 陈伯孝. 基于OFDM-LFM信号的MIMO雷达通信一体化信号共享设计研究[J]. 电子与信息学报, 2019, 41(4): 801-808. |
| LIU Bingfan, CHEN Boxiao. Integration of MIMO Radar and Communication with OFDM-LFM Signals[J]. Journal of Electronics & Information Technology, 2019, 41(4): 801-808. | |
| [17] | SEN S, NEHORAI A. Target Detection in Clutter Using Adaptive OFDM Radar[J]. IEEE Signal Processing Letters, 2009, 16(7): 592-595. |
| [18] | SEN S, NEHORAI A. Adaptive OFDM Radar for Target Detection in Multipath Scenarios[J]. IEEE Transactions on Signal Processing, 2011, 59(1): 78-90. |
| [19] | SIT Y L, STURM C, BAIER J, et al. Direction of Arrival Estimation Using the MUSIC Algorithm for a MIMO OFDM Radar[C]∥2012 IEEE Radar Conference. Piscataway: IEEE, 2012: 0226-0229. |
| [20] | KASHIN V A, MAVRYCHEV E A. Target Velocity Estimation in OFDM Radar Based on Subspace Approaches[C]∥2013 14th International Radar Symposium (IRS). Piscataway: IEEE, 2013: 1061-1066. |
| [21] | SEN S, NEHORAI A. Sparsity-Based Multi-Target Tracking Using OFDM Radar[J]. IEEE Transactions on Signal Processing, 2011, 59(4): 1902-1906. |
| [22] | SEN S, NEHORAI A. OFDM MIMO Radar with Mutual-Information Waveform Design for Low-Grazing Angle Tracking[J]. IEEE Transactions on Signal Processing, 2010, 58(6): 3152-3162. |
| [23] | CAO Yunhe, XIA Xianggen. IRCI-Free MIMO-OFDM SAR Using Circularly Shifted Zadoff-Chu Sequences[J]. IEEE Geoscience and Remote Sensing Letters, 2015, 12(5): 1126-1130. |
| [24] | RICHÉ V, MÉRIC S, BAUDAIS J Y, et al. Investigations on OFDM Signal for Range Ambiguity Suppression in SAR Configuration[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(7): 4194-4197. |
| [25] | 刘永军, 廖桂生, 杨志伟. 基于 OFDM 的雷达通信一体化波形模糊函数分析[J]. 系统工程与电子技术, 2016, 38(9): 2008-2018. |
| LIU Yongjun, LIAO Guisheng, YANG Zhiwei. Ambiguity Function Analysis of Integrated Radar and Communication Waveform Based on OFDM[J]. Systems Engineering and Electronics, 2016, 38(9): 2008-2018. | |
| [26] | LIU Yongjun, LIAO Guisheng, YANG Zhiwei, et al. Design of Integrated Radar and Communication System Based on MIMO-OFDM Waveform[J]. Journal of Systems Engineering and Electronics, 2017, 28(4): 669-680. |
| [27] | STURM C, WIESBECK W. Waveform Design and Signal Processing Aspects for Fusion of Wireless Communications and Radar Sensing[J]. Proceedings of the IEEE, 2011, 99(7): 1236-1259. |
| [28] | 刘永军, 廖桂生, 杨志伟, 等. 一种超分辨OFDM雷达通信一体化设计方法[J]. 电子与信息学报, 2016, 38(2): 425-433. |
| LIU Yongjun, LIAO Guisheng, YANG Zhiwei, et al. A Super-Resolution Design Method for Integration of OFDM Radar and Communication[J]. Acta Electronica Sinica, 2016, 38(2): 425-433. | |
| [29] | WANG Xiaojiang, ZHANG Zhenkai, ESMAEILI NAJAFABADI H. Joint Range and Velocity Estimation for Integration of Radar and Communication Based on Multi-Symbol OFDM Radar Pulses[J]. IET Radar, Sonar & Navigation, 2021, 15(5): 533-545. |
| [30] | 李自琦, 梅进杰, 胡登鹏, 等. 限幅法降低 OFDM 雷达通信一体化系统PAPR 研究[J]. 雷达科学与技术, 2014, 12(4): 406-410. |
| LI Ziqi, MEI Jinjie, HU Dengpeng, et al. Research on Deliberate Clipping for PAPR Reduction of Integrated Radar and Communication Systems Based on OFDM Signals[J]. Radar Science and Technology, 2014, 12(4): 406-410. | |
| [31] | 杨勇军, 梅进杰, 胡登鹏, 等. ACE降低QAM-OFDM雷达通信一体化共享信号PAPR研究[J]. 空军预警学院学报, 2018, 32(5): 317-320, 324. |
| YANG Yongjun, MEI Jinjie, HU Dengpeng, et al. Research on ACE for PAPR Reduction of QAM-OFDM Radar-Communication Integration Shared Signal[J]. Journal of Air Force Early Warning Academy, 2018, 32(5): 317-320, 324. | |
| [32] | LI Xuan, TANG Lan, ZHANG Xinggan. Range Estimation of CE-OFDM for Radar-Communication Integration[C]∥2018 IEEE International Conference on Communication Systems (ICCS). Piscataway: IEEE, 2018: 131-135. |
| [33] | 赵忠凯, 闫秋贞. 基于混沌序列的MIMO-OFDM雷达通信一体化波形设计[J]. 应用科技, 2024, 51(3): 121-127. |
| ZHAO Zhongkai, YAN Qiuzhen. Integrated MIMO-OFDM Radar and Communication Waveform Design Based on Chaotic Sequence Spread Spectrum[J]. Applied Science and Technology, 2024, 51(3): 121-127. | |
| [34] | 郑雨轩, 陆满君, 张文旭, 等. 基于OFDM的雷达通信一体化信号[J]. 制导与引信, 2021, 42(2): 18-23. |
| ZHENG Yuxuan, LU Manjun, ZHANG Wenxu, et al. Integrated Radar and Communication Signal Based on OFDM[J]. Guidance & Fuze, 2021, 42(2): 18-23. | |
| [35] | LI Cong, BAO Weimin, XU Luping, et al. Radar Communication Integrated Waveform Design Based on OFDM and Circular Shift Sequence[J]. Mathematical Problems in Engineering, 2017, 2017(1): 9840172. |
| [36] | 李振华, 姜雪, 朱炳祺. 基于导频的OFDM雷达通信一体化波形设计[J]. 制导与引信, 2023, 44(3): 1-7, 15. |
| LI Zhenhua, JIANG Xue, ZHU Bingqi. OFDM Integrated Waveform Design for Radar and Communication Based on Pilot[J]. Guidance & Fuze, 2023, 44(3): 1-7, 15. | |
| [37] | DOKHANCHI S H, SHANKAR M R B, STIFTER T, et al. OFDM-Based Automotive Joint Radar-Communication System[C]∥2018 IEEE Radar Conference (RadarConf18). Piscataway: IEEE, 2018: 0902-0907. |
| [38] | 代领军, 王杰, 辛月, 等. 基于OFDM梳状谱的雷达通信一体化信号研究[J]. 现代雷达, 2025, 47(2): 21-30. |
| DAI Lingjun, WANG Jie, XIN Yue, et al. A Study on Integrated Radar Communication Signal Based on OFDM Comb Spectrum[J]. Modern Radar, 2025, 47(2): 21-30. | |
| [39] | AMMAR K, BELKACEM O B HAI, BOUALLEGUE R. OQAM-FBMC Based Radar Sensing and Wireless Communication in V2V Context[C]∥2021 IEEE Symposium on Computers and Communications (ISCC). Piscataway: IEEE, 2021: 1-6. |
| [40] | XU Weiwei, WANG Cheng, CUI Gaofeng, et al. The M-Sequence Encoding Method for Radar-Communication System Based on Filter Bank Multi-Carrier[C]∥2017 9th International Conference on Advanced Infocomm Technology (ICAIT). Piscataway: IEEE, 2017: 255-259. |
| [41] | 李琬璐, 相征, 任鹏. 基于FBMC信号的低截获雷达通信一体化波形设计[J]. 雷达学报, 2023, 12(2): 287-296. |
| LI Wanlu, XIANG Zheng, REN Peng. Filter Bank Multi-carrier Waveform Design for Low Probability of Intercepting Joint Radar and Communication System[J]. Journal of Radars, 2023, 12(2): 287-296. | |
| [42] | KOSLOWSKI S, BRAUN M, JONDRAL F K. Using Filter Bank Multicarrier Signals for Radar Imaging[C]∥2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014. Piscataway: IEEE, 2014: 152-157. |
| [43] | 王立超. 基于FBMC-OQAM的雷达通信一体化算法研究[D]. 西安: 西安电子科技大学, 2022. |
| WANG Lichao. Research on Integrated Radar and Communication Algorithm Based on FBMC-OQAM[D]. Xi'an: Xidian University, 2022. | |
| [44] | 王杰, 裴泽琳, 陈军, 等. 基于滤波器组多载波梳状谱的雷达通信一体化信号技术[J]. 信号处理, 2022, 38(11): 2308-2319. |
| WANG Jie, PEI Zelin, CHEN Jun, et al. Radar Communication Integrated Signal Technology Based on FBMC Comb Spectrum[J]. Journal of Signal Processing, 2022, 38(11): 2308-2319. | |
| [45] | 商晓可, 张贞凯, 王小江. 正交时频空雷达通信一体化波形优化设计方法[J]. 战术导弹技术, 2022(5): 31-37. |
| SHANG Xiaoke, ZHANG Zhenkai, WANG Xiaojiang. Orthogonal Time-Frequency-Space Radar Communication Integrated Waveform Optimization Design Method[J]. Tactical Missile Technology, 2022(5): 31-37. | |
| [46] | GAUDIO L, KOBAYASHI M, BISSINGER B, et al. Performance Analysis of Joint Radar and Communication using OFDM and OTFS[C]∥2019 IEEE International Conference on Communications Workshops (ICC Workshops). Piscataway: IEEE, 2019: 1-6. |
| [47] | RAVITEJA P, PHAN K T, HONG Yi, et al. Orthogonal Time Frequency Space (OTFS) Modulation Based Radar System[C]∥2019 IEEE Radar Conference (RadarConf). Piscataway: IEEE, 2019: 1-6. |
| [48] | 朱柯弘, 王杰, 梁兴东, 等. 用于SAR与通信一体化系统的滤波器组多载波波形[J]. 雷达学报, 2018, 7(5): 602-612. |
| ZHU Kehong, WANG Jie, LIANG Xingdong, et al. Filter Bank Multicarrier Waveform Used for Integrated SAR and Communication Systems[J]. Journal of Radars, 2018, 7(5): 602-612. | |
| [49] | DAYARATHNA S, SMITH P, SENANAYAKE R, et al. OTFS Based Joint Radar and Communication: Signal Analysis Using the Ambiguity Function[J]. IEEE Signal Processing Letters, 2024, 31: 919-923. |
| [50] | HU Jingying, YANG Jiajia, CHUAN Yingdong, et al. Performance Analysis of OFDM and FBMC[J]. IOP Conference Series: Materials Science and Engineering, 2019, 677(3): 032001. |
| [51] | SURABHI G D, AUGUSTINE R M, CHOCKALINGAM A. Peak-to-Average Power Ratio of OTFS Modulation[J]. IEEE Communications Letters, 2019, 23(6): 999-1002. |
| [52] | LIU Gaogao, YANG Wenbo, BAO Yuqian, et al. Joint Radar Communication System Design Based on Filter Bank Multicarrier Modulation Scheme[J]. IET Radar, Sonar & Navigation, 2023, 17(1): 47-62. |
| [53] | OKOYEIGBO O, DENG Xutao, IMOIZE A L, et al. OTFS: A Potential Waveform for Space-Air-Ground Integrated Networks in 6G and Beyond[J]. Telecom, 2025, 6(1): 19. |
| [54] | HADANI R, RAKIB S, TSATSANIS M, et al. Orthogonal Time Frequency Space Modulation[C]∥2017 IEEE Wireless Communications and Networking Conference (WCNC). Piscataway: IEEE, 2017: 1-6. |
| [55] | 武成锋, 程进, 郭晓云, 等. 飞行器集群协同定位与导航对抗技术发展与展望[J]. 宇航学报, 2022, 43(2): 131-142. |
| WU Chengfeng, CHENG Jin, GUO Xiaoyun, et al. Development and Prospect of Aircraft Clusters Cooperative Positioning and Navigation Countermeasures Technology[J]. Journal of Astronautics, 2022, 43(2): 131-142. |
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