Intrapulse Step Frequency-cyclic Phase Encoding Signal and Its Ambiguity Function Analysis Facing High-orbit Targets Monitoring

ZHOU Ying; CHEN Jieqi; LI Pengju; ZHAO Feng

doi:10.11999/JEIT230862

Volume 45 Issue 11

Nov. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(11): 4170-4178

ZHOU Ying, CHEN Jieqi, LI Pengju, ZHAO Feng. Intrapulse Step Frequency-cyclic Phase Encoding Signal and Its Ambiguity Function Analysis Facing High-orbit Targets Monitoring[J]. Journal of Electronics & Information Technology, 2023, 45(11): 4170-4178. doi: 10.11999/JEIT230862

Citation:

ZHOU Ying, CHEN Jieqi, LI Pengju, ZHAO Feng. Intrapulse Step Frequency-cyclic Phase Encoding Signal and Its Ambiguity Function Analysis Facing High-orbit Targets Monitoring[J]. Journal of Electronics & Information Technology, 2023, 45(11): 4170-4178. doi: 10.11999/JEIT230862

Citation:

ZHOU Ying, CHEN Jieqi, LI Pengju, ZHAO Feng. Intrapulse Step Frequency-cyclic Phase Encoding Signal and Its Ambiguity Function Analysis Facing High-orbit Targets Monitoring[J]. Journal of Electronics & Information Technology, 2023, 45(11): 4170-4178. doi: 10.11999/JEIT230862

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Intrapulse Step Frequency-cyclic Phase Encoding Signal and Its Ambiguity Function Analysis Facing High-orbit Targets Monitoring

doi: 10.11999/JEIT230862

1.
School of Electronics and Communication Engineering, Sun Yat-sen University·Shenzhen,Shenzhen 518107, China
2.
College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China

Funds: Shenzhen Science and Technology Program (KQTD20190929172704911)

Received Date: 2023-08-08
Rev Recd Date: 2023-10-31

Available Online: 2023-11-03

Publish Date: 2023-11-28

Abstract

Abstract

Considering the monitoring of space targets in high orbit, the waveform design of the distributed coherent radar system is studied. The core goal is to take into account the large time-bandwidth of the signal under the premise of ensuring good waveform orthogonality. In this paper, a compound modulation waveform of intrapulse step frequency and phase encoding is proposed. Firstly, the time domain expression of the intrapulse step frequency-phase encoding signal is given, and then its ambiguity function and autocorrelation main peak amplitude are deduced. Secondly, the concept of cyclic code is introduced, and finally the simulation results of intrapulse step frequency-cyclic phase coded signal are compared with other signals. The simulation results show that, compared with the single modulation signal and the pulse-to-pulse modulation signal, the intra-pulse step frequency-cyclic phase coding signal has better orthogonality, and at the same time ensures a large bandwidth of the signal. It provides a good theoretical support for the follow-up research work of distributed coherent radar.
- Distributed coherent radar,
- Waveform design,
- Step frequency,
- Phase encoding,
- Ambiguity function

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References(16)

References

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