Results 181 to 190 of about 74,099 (218)
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Bistatic Radar and Low-Probability-of-Intercept Radar
2004This discussion of the fundamentals of bistatic radar follows that of Willis, who provides a history of many bistatic radar proposals and programs and a summary of many technical analyses. Figure 13.1 introduces some basic terminology. Instead of two locations of interest (the radar and the target), we now have three (transmitter, Tx; receiver, Rx; and
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Low Probability of Interception of an Advanced Noise Radar Waveform with Linear-FM
IEEE Transactions on Aerospace and Electronic Systems, 2013This research considers an advanced pulse compression noise (APCN) radar waveform possessing salient features from linear-FM (LFM) and noise waveforms. A cross-correlation model considering several chirp waveform profiles is used to simulate the output of a passive electronic intelligence (ELINT) intercept-receiver.
Mark A. Govoni +2 more
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Low probability of intercept R-Conjugate CDMA codes
IEEE Southeastcon 2009, 2009Privacy and security have become increasingly important in code division multiple access (CDMA) systems, for both cellular and military applications. One way to improve security is to use spreading code diversity to transmit user information, a technique known as multi-code CDMA. In this paper, we present a new method of generating codes for multi-code
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Low Probability of Intercept Radar Signal Recognition by Staked Autoencoder and SVM
2018 10th International Conference on Wireless Communications and Signal Processing (WCSP), 2018A novel low probability of intercept (LPI) radar signal recognition method based on stacked autoencoder combined with support vector machine (SVM) is proposed in this paper. The method firstly transforms the LPI radar signal to time-frequency $(\mathrm{T}-\Gamma)$ domain through Choi-Williams Distribution (CWD) to obtain the T-F images of signals. Then,
Muqing Zhang +3 more
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Optical Engineering, 2018
Direction finding (DF) systems are fundamental electronic support measures for electronic warfare. A number of DF techniques have been developed over the years; however, these systems are limited in bandwidth and resolution and suffer from a complex design for frequency downconversion.
Pace, Phillip Eric +2 more
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Direction finding (DF) systems are fundamental electronic support measures for electronic warfare. A number of DF techniques have been developed over the years; however, these systems are limited in bandwidth and resolution and suffer from a complex design for frequency downconversion.
Pace, Phillip Eric +2 more
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Automated and Blind Detection of Low Probability of Intercept RF Anomaly Signals
Proceedings of the 30th Annual International Conference on Mobile Computing and NetworkingAutomated spectrum monitoring necessitates the accurate detection of low probability of intercept (LPI) radio frequency (RF) anomaly signals to identify unwanted interference in wireless networks. However, detecting these unforeseen low-power RF signals is fundamentally challenging due to the scarcity of labeled RF anomaly data.
Kunal Gusain +6 more
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Low-probability of intercept of ultra-low-power, near-field signals
2007 IEEE Antennas and Propagation Society International Symposium, 2007Long considered a technical backwater, low-power, near-field systems are emerging as the preferred solution for a variety of useful applications. These applications include short-range communication, radio frequency identification (RFID), and real-time locating systems (RTLS).
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Three Extensions of the Random Intercept Cross-Lagged Panel Model
Structural Equation Modeling, 2021Jeroen D Mulder, Ellen L Hamaker
exaly