Results 121 to 130 of about 2,547 (185)
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IEEE Transactions on Aerospace and Electronic Systems, 1991
Digitally coded radar waveforms can be used to obtain large time-bandwidth products (pulse compression ratios). It is demonstrated that periodic radar waveforms with zero sidelobes or almost zero sidelobes can be defined. A perfect periodic code is a periodic code whose autocorrelation function has zero sidelobes and whose amplitude is uniform (maximum
K. Gerlach, F.F. Kretschmer
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Digitally coded radar waveforms can be used to obtain large time-bandwidth products (pulse compression ratios). It is demonstrated that periodic radar waveforms with zero sidelobes or almost zero sidelobes can be defined. A perfect periodic code is a periodic code whose autocorrelation function has zero sidelobes and whose amplitude is uniform (maximum
K. Gerlach, F.F. Kretschmer
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IET Conference Publications, 2009
A novel method of anti deceiving jamming is proposed. Normal radar waveform is vulnerable to jammer's interception and analysis. If modify the phase of normal waveform according to minimum correlation between the primitive and modified one, and if the phase varying is minor, the jammer may not perceive it and still transmit the intercepted normal ...
null Zhang Shiyuan +2 more
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A novel method of anti deceiving jamming is proposed. Normal radar waveform is vulnerable to jammer's interception and analysis. If modify the phase of normal waveform according to minimum correlation between the primitive and modified one, and if the phase varying is minor, the jammer may not perceive it and still transmit the intercepted normal ...
null Zhang Shiyuan +2 more
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Robust Waveform Design for MIMO Radars
IEEE Transactions on Signal Processing, 2011The problem of robust waveform design for multiple-input, multiple-output radars equipped with widely spaced antennas is addressed here. Robust design is needed as a number of parameters may be unknown, e.g., the target scattering covariance matrix and the disturbance covariance matrix.
GROSSI, Emanuele +2 more
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Frequency Coded Waveforms for Adaptive Waveform Radar
2006 40th Annual Conference on Information Sciences and Systems, 2006We consider the use of frequency coded sequences for adaptive waveform radar. In particular, we investigate the joint use of stepped frequency chirps, Costas sequences, and pushing sequences to form an effective signal set for adaptive waveform radar.
Mark Bell, Chieh-fu Chang
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Arbitrary pulsed radar waveform
2012 International Waveform Diversity & Design Conference (WDD), 2012This paper describes the design of a very short pulsed radar waveform in which all the pulsed parameters may be designed so as to support pulse Doppler operation yielding an ambiguity free measurement of target range and velocity whilst maintaining good target visibility at all ranges/velocities in the presence of clutter.
Clive M. Alabaster, Evan J. Hughes
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Automatic Radar Waveform Recognition
IEEE Journal of Selected Topics in Signal Processing, 2007In this paper, a system for automatically recognizing radar waveforms is introduced. This type of techniques are needed in various spectrum management, surveillance and cognitive radio or radar applications. The intercepted radar signal is classified to eight classes based on the pulse compression waveform: linear frequency modulation (LFM), discrete ...
Jarmo Lundn, Visa Koivunen
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