Results 191 to 200 of about 17,683 (224)
Low probability of intercept radar strategies
IEE Proceedings - Radar, Sonar and Navigation, 2004 To reduce probability of intercept, in most cases, the form and magnitude of the radar transmissions are designed to spread energy over as wide a range of dimensions as possible. Equally, in response to this, designs for electronic surveillance measures (ESM) systems have been postulated that increase receiver sensitivity.
A.G. Stove, A.L. Hume, Chris Baker
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Usage of Costas arrays in Low Probability of Intercept radars
2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015 Low Probability of Intercept (LPI) radars are used to detect targets at low distances by means of coded signals without being intercepted by hostile elements. Frequency Shift Keying (FSK) is one of the signal types used by LPI radars. In LPI radars, the frequency sets of FSK signals, which are constructed with continuous wave, are obtained by using ...
Fatih Güleç, Erkan Afacan
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The analysis and design of modern Low Probability of Intercept radar
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559), 2002 In the modern battlefield, radar faces more and more serious threats from ECM and ARM, etc. Only the Low Probability of Intercept (LPI) radar can survive. In this paper, the principle of LPI radar is introduced first. Then the effects of radar parameters on LPI performance are discussed in detail.
Liu Guosui +3 more
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A low probability of intercept OFDM radar communication waveform design method
2021 IEEE International Conference on Consumer Electronics and Computer Engineering (ICCECE), 2021In recent years, orthogonal frequency division multiplexing (OFDM) has been widely used as a radar communication integrated shared signal. In order to improve the RF stealth performance of OFDM radar communication integration system, a shared waveform optimization method based on interception probability is proposed.
Shengkun Zhu +3 more
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Radar signal processing development for low probability of intercept radar system
2016 IEEE Region 10 Conference (TENCON), 2016In this paper, researches on the development of a low probability of intercept (LPI) radar is presented. This radar was developed based on the existing frequency modulated-continuous wave (FM-CW) coastal surveillance radar at the PPET-LIPI. This LPI radar development was initiated by modifying the antenna design to produce more perfect beams, where the
null Sulistyaningsih +2 more
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The low probability of intercept radar systems with spatial feedback
IEEE EUROCON 2009, 2009“The radar system with spatial positive feedback throw the target is considered. In this system there are self-oscillations, if the system is closed through a space of the signal radio-path and the target. When the target is absent (system is not closed), transmitter output power of the noise signal is insignificant, and that complicates detection of ...
S.P. Kalenichenko, V.M. Kutuzov
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Adaptive radar jamming waveform design based on low probability of intercept
2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP), 2015Low probability of intercept (LPI) has currently become a central issue in modern electronic warfare. In this paper, the problem of task-dependent adaptive radar jamming waveform design based on LPI is investigated. Firstly, the achievable signal-to-interference-plus-noise ratio (SINR) and mutual information (MI) are derived to evaluate the target ...
Chenguang Shi +3 more
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Low Probability of Intercept Radar Waveform Recognition Based on Dictionary Leaming
2018 10th International Conference on Wireless Communications and Signal Processing (WCSP), 2018Low probability of intercept (LPI) radar waveform recognition is a challenging task in modern radar and electronic warfare (EW) systems. To solve the problem of incomplete information and the need for human experience in the existing feature-based radar recognition methods, a robust and automatic LPI radar waveform recognition method based on Choi ...
Huan Wang, Ming Diao, Lipeng Gao
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Power control and beamforming in passive phased array radars for low probability of interception
Digital Signal Processing, 2021Abstract In this paper, we investigate low probability interception (LPI) in passive phased array radars. Power control and transmit beamforming (BF) are used to minimize the received power by the interceptor. Meanwhile, desired target detection performances and the limited power budget of radar are guaranteed.
Mohammad Kazemi Rad +1 more
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Low probability of intercept optimization for radar network based on mutual information
2014 IEEE China Summit & International Conference on Signal and Information Processing (ChinaSIP), 2014This paper investigates the problem of low probability of intercept (LPI) design for radar network system and presents a novel LPI optimization strategy based on mutual information (MI) to improve the LPI performance for radar network. With the radar network system model, this paper would first derive Schleher intercept factor for radar network.
Chenguang Shi, Jianjiang Zhou, Fei Wang
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