Results 281 to 290 of about 2,897,668 (300)
Some of the next articles are maybe not open access.
Anti-Jamming Techniques for GPS Receivers
2001Abstract : The fundamental objective of this research project is to improve the GPS receiver performance when subjected to strong nonstationary interference. The techniques applied and proposed to achieve this objective rely on the estimation of both time-frequency and spatial signatures of the jammers.
Yimin Zhang +3 more
openaire +1 more source
Active Anti-jamming Solutions in CRNs
2015Cognitive radio nodes are motivated to perform jamming attacks, if the illegal gains exceed the payment due to the attacking cost and the loss from the resulting punishment. In this chapter, we present active anti-jamming solutions in CRNs, based on reciprocity principles, social norms and reinforcement learning techniques.
openaire +1 more source
Oblique Projection Beamforming GPS Anti-jamming Algorithm
2020Adaptive beamforming based on the oblique projection technique, which can maximum retain useful signal and form nulls in the interference direction. The oblique projection technique is applied to GPS anti-jamming with good effect. GPS satellite signal is very weak, at the same time, the steering vector of the satellite signal is difficult to obtain ...
Binbin Shi +4 more
openaire +1 more source
Spread Spectrum-Based Anti-jamming Techniques
2015In this chapter, we first introduce spread spectrum-based anti-jamming techniques in Sect. 2.1. We then investigate the anti-jamming transmissions based on frequency hopping in Sect. 2.2, and present DSSS-based anti-jamming systems in Sect. 2.3. We discuss the challenges of jammers in cognitive radio networks in Sect. 2.4, and summarize in Sect. 2.5.
openaire +1 more source
Low profile and anti-jam GPS array
2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2013This paper presents an anti-jam GPS array. The antenna is comprised of 4 small size radiating cavities filled with two stacked patches and a series of dielectric substrates and a foam layer. The main features of the antenna are low profile shape and low inter-element coupling. The antenna design is compatible with high impedance surface (HIS) insertion,
openaire +1 more source
Anti-Jamming Resilient LEO Satellite Swarms
MILCOM 2023 - 2023 IEEE Military Communications Conference (MILCOM), 2023Venkata Srirama Rohit Kantheti +3 more
openaire +1 more source
All-fiber anti-jamming capacitive pressure sensors based on liquid metals
Rare MetalsHui-Chen Xu +6 more
semanticscholar +1 more source
Multi-UAV Cooperation for Anti-jamming Communication
2022 IEEE International Conference on Unmanned Systems (ICUS), 2022Haoming Wei +3 more
openaire +1 more source
Precoding-Based Mode Hopping for Anti-Jamming
2021 IEEE Global Communications Conference (GLOBECOM), 2021Liping Liang +3 more
openaire +1 more source