A New OFDM Phase-coded Stepped-frequency Radar Signal and Its Characteristic

Huo  Kai; Jiang  Wei-Dong; Li  Xiang; Mao  Jun-Jie

doi:10.3724/SP.J.1146.2010.00532

Volume 33 Issue 3

Mar. 2011

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Huo Kai, Jiang Wei-Dong, Li Xiang, Mao Jun-Jie. A New OFDM Phase-coded Stepped-frequency Radar Signal and Its Characteristic[J]. Journal of Electronics & Information Technology, 2011, 33(3): 677-683. doi: 10.3724/SP.J.1146.2010.00532

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A New OFDM Phase-coded Stepped-frequency Radar Signal and Its Characteristic

doi: 10.3724/SP.J.1146.2010.00532

Huo Kai^{* 姜卫东黎湘毛钧杰
,},
Jiang Wei-Dong,
Li Xiang,
Mao Jun-Jie

Received Date: 2010-05-27
Rev Recd Date: 2010-09-16
Publish Date: 2011-03-19

Abstract

Abstract

Orthogonal Frequency-Division Multiplexing (OFDM) phase-coded radar has many prominent properties. However, there are some technical challenges on engineering realization, one of which is that instantaneous bandwidth is equal to the total bandwidth and large bandwidth leads to high requirement of the radar receiving technique. Aiming at this problem, a new radar signal named OFDM Phase-Coded Stepped-Frequency (OFDM-PCSF) signal is proposed. Several OFDM Phase-Coded (OFDM-PC) pulses with small bandwidth construct a pulse burst to synthesize large bandwidth, using stepped-frequency carriers. Based on deriving the ambiguity function of the new radar signal, the paper analyzes mainly the high range resolution and Doppler property. A conclusion is drawn that OFDM-PCSF signal can achieve high range resolution and the Doppler sensitivity is between the OFDM-PC pulse and the stepped-frequency signal.
- Frequency-stepped radar,
- Orthogonal Frequency-Division Multiplexing (OFDM),
- Phase-coded,
- Ambiguity function,
- High range resolution profile

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References(1)

References

Levanon N. Multifrequency complementary phase-coded radar signal[J].IEE Proceedings on Radar Sonar Navigation.2000, 147(6):276-284[8]Berger C R, Demissie B, and Heckenbach J, et al.. Signal processing for passive radar using OFDM waveforms[J].IEEE Journal of Selected Topics in Signal Processing.2010, 4(1):226-238[13]贺志毅, 汤斌, 郝祖全. 脉内调频、脉间步进跳频雷达信号的模糊函数[J].电子学报.2003, 31(7):1118-1120[16]朱永峰. 频率步进雷达运动目标成像的理论与方法研究. [博士论文], 国防科学技术大学, 2009: 46-58.[18]陈行勇, 魏玺章, 黎湘, 郭桂蓉. 调频步进雷达扩展目标高分辨距离像分析[J].电子学报.2005, 33(9):1599-1602[20]张涛, 马长征, 张群, 张守宏. 基于线性调频步进信号的ISAR成像技术研究[J].电子与信息学报.2001, 23(3):268-274浏览[21]Zhang Tao, Ma Chang-zheng, and Zhang Qun, et al.. Research on ISAR imaging based on linearly modulated frequency stepped radar signal[J].Journal of Electronics Information Technology.2001, 23(3):268-274

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