Anti-Jamming
GPS Antenna with Metallic Conical Structure for Anti-Jamming Applications
... the jamming signal using a temporal filter [3], space-time adaptive processing (STAP) [4], space-frequency adaptive processing (SFAP) [5], modified GPS arrays [6], and non-planar type spherical cap adaptive ...
11
GPS Anti jamming Performance Simulation Based on LCMV Algorithm
... GPS anti-jamming methods are anti-interference technique in time domain, airspace anti-jamming technology and frequency domain anti-jamming technology, ...many ...
6
CS-SFD Algorithm for GNSS Anti-Jamming Receivers
... domain anti-jamming algorithm based on the compressed sensing theory (CS-SFD) is ...the anti- interference weight vector, which has better robustness under fewer ...
10
A Space-Frequency Anti-Jamming Algorithm Based on Sub-Band Energy Detection
... major anti-jamming researches of global navigation satellite system (GNSS) mostly focus on receivers [2, ...the anti-jamming performance of ...on anti-interference algorithms are also ...
10
Location-aware Cooperative Anti-jamming Distributed Channel Selection Approach in UAV Communication Networks
... As is mentioned in Algorithm1, when users are influenced by co-channel interference, the proposed location-aware cooperative anti-jamming distributed channel selection algorithm (LCADCSA[r] ...
15
Comparison of the Radar Receiver Anti Jamming Circuits Performance
... of anti jamming ...of jamming signal simulation module is responsible for all kinds of interference signals may be mixed with the complex electromagnetic environment signals such as the receiver ...
7
Research on Intelligent anti-jamming communication with Cognitive Radio
... Both NC-OFDM and TDCS can eliminate the interfered and occupied sub-carriers through the spectrum sensing module. NC-OFDM can achieve high-speed transmission in the case of small narrowband interference. The TDCS can ...
5
A Secure Message Exchange and Anti-Jamming Mechanism in MANET
... To transmit a message, the sender first transforms the message into a NRZsequence by replacing each bit 0 with -1 and then multiplies each bit of the message by a spread code to get the spread message also known as the ...
5
Spatio Temporal Techniques for Anti Jamming in Embedded Wireless Networks
... Electromagnetic jamming results in a loss of link reliability, increased energy consumption and packet delays. In the context of energy-constrained wireless networks, nodes are scheduled to maximize the common ...
16
A Review on Frequency Hopping Spread Spectrum Based Anti Jamming Improvement With Encrypted Spreading Codes
... the jamming capability of the cognitive- radio- based jammers and the anti-jamming capability of the cognitive radio networks ...under jamming. With various jamming models, the ...
6
A Set of Simple Numerical Pattern Synthesis Algorithms for Anti-Jamming with Superdirective Receiving Array
... Although the above methods effectively improve the engineering value of a super-gain array, they still have some deficiency. On one hand, S/U-CODG can make super-gain array have sufficiently high radiation efficiency and ...
8
Research on Anti Jamming Performance of GMSK in Shortwave Frequency Hopping
... good anti-interference, low probability of interception and strong networking ...improved anti-interception and anti-interference capabilities of military equipmen [1] ...good ...
9
Markov Model Based Jamming and Anti Jamming Performance Analysis for Cognitive Radio Networks
... the jamming capability of the cognitive- radio-based jammers and the anti-jamming capability of the cognitive radio networks ...under jamming. With various jamming models, the ...
10
Jamming and Anti Jamming Technique
... detect jamming and switch channels or move nodes to a new physical ...detecting jamming in networks, nodes either choose to switch the jammed channel to a non-jammed one, forward packets outside the ...
5
ANTI-JAMMING BROADCAST COMMUNICATION USING UNCOORDINATED FREQUENCY HOPPING
... Normally UFH approach proposed to overcome jamming which is based on rapid channel switching over large frequency range. Each packet has to send multiple times, because of the low communication efficiency ...
9
Proactive jamming towards interference alignment networks : beneficial and adversarial aspects
... the jamming signal can also be adversarial for IA ...the anti-jamming IA scheme is leveraged [28], [29], the illegal IA network can eliminate the jamming signal and guarantee its ...proactive ...
13
A Passive Suppressing Jamming Method for FMCW SAR Based on Micromotion Modulation
... Compared to conventional pulse-synthetic aperture radar (pulse-SAR), frequency-modulated continuous wave (FMCW) SAR takes the advantages of compact size, lightweight, low cost and low power dissipation [1–3]. The ...
8
An algorithm for jamming strategy using OMP and MAB
... of jamming methods can be presented as follows: (1) Reconnaissance, evaluation, and jamming—The jammer collects the required information, such as modula- tion scheme, transmission power, and communication ...
11
Complex Environment Noise Barrage Jamming Eeffects on Airborne Warning Radar
... have jamming function, the target airplane does not changed in order to compare the influence of jamming on warning ...The anti-suppression jamming test of alert radar is completed by means of ...
5
Wireless Communication under Broadband Reactive Jammer Attacks
... Although FHSS and DSSS techniques were developed more than 30 years ago, until now these techniques and their variants are all limited by a common assumption that the jammer can only jam part of the communication ...
9