脉间Costas跳频脉内多载波混沌相位编码雷达信号设计与分析

黄琼丹; 李勇; 卢光跃

doi:10.11999/JEIT140653

脉间Costas跳频脉内多载波混沌相位编码雷达信号设计与分析

doi: 10.11999/JEIT140653

1.
(西北工业大学电子信息学院西安 710072)
3.
(西安邮电大学通信与信息工程学院西安 710112)

基金项目:

航空科学基金(20112053018)资助课题

计量
- 文章访问数: 1967
- HTML全文浏览量: 144
- PDF下载量: 521
- 被引次数: 0
出版历程
- 收稿日期: 2014-05-19
- 修回日期: 2015-01-29
- 刊出日期: 2015-06-19

Design and Analysis of Inter-pulse Costas Frequency Hopping and Intra-pulse Multi-carrier Chaotic Phase Coded Radar Signal

1.
(School of Electronics and Information, Northwestern Polytechnical University, Xi&rsquo
2.
(School of Electronics and Information, Northwestern Polytechnical University, Xi&rsquo
3.
(School of Telecommunication and Information Engineering, Xi&rsquo

摘要

摘要: 该文在步进频信号的基础上，把基于混沌调制的多载波相位编码(Multi-Carrier Phase Coded, MCPC)信号作为子脉冲，用Costas跳频代替频率的线性步进，设计出脉间Costas跳频脉内多载波混沌相位编码(Inter-Pulse Costas frequency hopping and intra-pulse Multi-Carrier Chaotic Phase Coded, IPC-MCCPC)雷达信号，并对其模糊函数及自相关性能进行了研究。仿真分析表明，该文设计的信号继承了步进频信号用较小的瞬时带宽合成较大的工作带宽的优点，同时有效克服了步进频信号存在的距离-速度耦合的缺点。脉内多载波特性使得这种信号在保持总带宽和步进频信号相等的条件下减少跳频阶数，从而提高信号处理的数据率；混沌调相的引入使得这种信号具有更强的保密性；脉间频率的随机跳变使其模糊函数具有更低的周期性旁瓣。这种信号众多的参数、灵活的结构及较大的调制复杂度，增加了侦察接收机匹配和识别的难度，从而提高雷达的反截获性能。
- 雷达 /
- 混沌 /
- Costas /
- 多载波相位编码 /
- 模糊函数
Abstract: Through taking the Multi-Carrier Phase Coded (MCPC) signal as the subpulse, and replacing the linear frequency step with the Costas frequency hopping, a new Inter-Pulse Costas frequency hopping and intra-pulse Multi-Carrier Chaotic Phase Coded (denoted by IPC-MCCPC) radar signal is designed on the basis of stepped-frequency signal. The ambiguity function and autocorrelation performance of the designed signal are studied. Simulation results show that the designed signal carries forward the advantage that the stepped-frequency signal achieves a larger operating bandwidth by instantaneous bandwidth synthesis, and overcomes the defect of range-velocity coupling caused by frequency-stepped. The interpulses multi-carrier characteristic can decrease the frequency stepped pulse number under the condition of keeping the total bandwidth as same as the stepped-frequency signal, thus increases the data rate of signal processing. The designed signal has stronger secrecy due to the introduction of chaotic phase modulation. The ambiguity function of designed signal has lower periodic side lobe because the Costas frequency hopping. Besides that, the designed signal has flexible structure, numerous parameters and complex modulation mode makes it more difficult to be identified by reconnaissance receivers, so the anti-intercept ability of radar system is greatly improved.
- Radar /
- Chaotic /
- Costas /
- Multi-Carrier Phase Coded (MCPC) /
- Ambiguity function

HTML全文

参考文献(22)

Piezzo M, De Maio A, Aubry A, et al.. Cognitive radar waveform design for spectral coexistence[C]. Proceedings of the 2013 IEEE Radar Conference (RADAR), Ottawa, Canada, 2013: 1-4.

Wang L, Fu X, Shi L, et al.. Radar waveform design under the constraint of auto-correlation, orthogonality and Doppler tolerance[C]. Proceedings of the IET International Radar Conference, Xian, China, 2013: 1-4.

Stove A G, Hume A L, and Baker C J. Low probability of intercept radar strategies[J]. IEE Proceedings-Radar, Sonar and Navigation,　2004, 151(5): 249-264.

张锡熊. 低截获概率(LPI)雷达的发展[J]. 现代雷达, 2003, 25(12): 1-4.

Zhang Xi-xiong. Development of LPI radar[J]. Modern Radar, 2003, 25(12): 1-4.

Levanon N. Multifrequency complementary phase-coded radar signal [J]. IEE Proceeding-Radar, Sonar and Navigation, 2000, 147(6): 276-284.

Levanon N and Mozeson E. Radar Signals [M]. New York, John Wiley Sons, 2004: 74-95.

邓斌. 多载频相位编码雷达信号设计与处理技术研究[D]. [博士论文], 国防科技大学, 2011: 53-64.

Deng Bin. Research on the signal designing and processing of multi-carrier phase coded radar[D]. [Ph.D. dissertation], National University of Defense Technology, 2011: 53-64.

Lellouch G and Mishra A K. Multi-carrier based radar signal optimization using genetic algorithm[C]. Proceedings of the Third International Conference on Soft Computing for Problem Solving, Greater Noida, India, 2014: 525-534.

Levanon N. Stepped-frequency pulse-train radar signal[J]. IEE Proceedings-Radar, Sonar and Navigation, 2002, 149(6): 297-309.

Liu Yi-min, Huang Tiao-yao, Meng Hua-dong, et al.. Fundamental limits of HRR profiling and velocity compensation for stepped-frequency waveforms[J]. IEEE Transactions on Signal Processing, 2014, 62(17): 4490-4504.

Gill G S. Step frequency waveform design and processing for detection of moving targets in clutter[C]. Proceedings of the IEEE 1995 International Radar Conference, Alexandria, Egypt, 1995: 573-578.

霍凯, 姜卫东, 黎湘, 等. 一种新的OFDM相位编码频率步进雷达信号及其特性[J]. 电子与信息学报, 2011, 33(3): 677-683.

Huo Kai, Jiang Wei-dong, Li Xiang, et al.. A new OFDM phase-coded stepped-frequency radar signal and its characteristic[J]. Journal of Electronics Information Technology, 2011, 33(3): 677-683.

Taylor K, Rickard S, and Drakakis K. Costas arrays, number of hops, and time-bandwidth product[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(3): 1995-2004.

Yue L, Run W, Yongping H, et al.. Super-resolution imaging realization of costas signal[J]. TELKOMNIKA Indonesian Journal of Electrical Engineering, 2014, 12(2): 1374-1384.

Huang Jen-fa, Yang Chao-chin, and Huang Chun-ming. On analyzing quasi-cyclic LDPC codes over modified welch- costas-coded optical CDMA sysytem[J]. IEEE Journal of Light Wave Technology, 2009, 27(12): 2150-2158.

Mahafza B R and Elsherbeni A Z. MATLAB Simulations for Radar Systems Design [M]. London, Chapman Hall, 2003: 202-212.

Boccaletti S, Grebogi C, Lai Y C, et al.. The control of chaos: theory and application [J]. Physics Reports, 2000(329): 103-197.

Carroll T L. Adaptive chaotic maps for identification of complex targets[J]. IET Radar, Sonar Navigation, 2008, 2(4): 256-262.

Franken G E A, Hikookar H, and van Genderen P. Doppler tolerance of OFDM-coded radar signals[C]. Proceedings of the 3rd European Radar Conference (EuRAD 2006), Manchester, UK, 2006: 108-111.

施引文献

资源附件(0)

访问统计