Results 251 to 260 of about 9,067 (287)

Radar Jamming Suppression using Clipping Based Pulse Integration

NAECON 2018 - IEEE National Aerospace and Electronics Conference, 2018
A radar pulse integration (PI) technique was recently propounded in the context of which the receiver clips the envelope detector outputs to a suitable level to suppress jammer energy before performing PI. In this contribution, probability density functions relevant to this technique have been derived with the aid of which it has been demonstrated that
Sohail Ahmed, Furqan Abbasi, Usman Iqbal Ahmed   +2 more
openaire   +1 more source

Chaff cloud jamming suppression based on wavelet transform

Journal of Shanghai Jiaotong University (Science), 2011
Radar target signals and chaff cloud jamming signals have different characters by the wavelet transform. The wavelet coefficients of radar target signals are highly correlated with its near-and-near-scale wavelet coefficients, however the correlativity between the wavelet coefficients of chaff cloud jamming signals and its near-and-near scale wavelet ...
Hai-bo Zhao, Jin-ze Pei, Lei-ming Zhao, Guang-rui Hu   +3 more
openaire   +1 more source

Novel narrowband jamming suppression algorithm in communication system

2017 7th IEEE International Conference on Electronics Information and Emergency Communication (ICEIEC), 2017
Narrowband blanket jamming is common in satellite navigation systems. To suppress narrowband jamming, this paper proposes an adaptive LMS filtering algorithm in the frequency domain by updating partial weight coefficients. Firstly this paper introduces the model and the implementation means of the algorithm, then performs contrastive analysis on the ...
Pei Wang, Xiaochun Lu, Rui Wang
openaire   +1 more source

Simulation of noise suppression jamming signal on ISAR

IET Conference Publications, 2009
The paper provides the simulation method of various jamming signals on the output of the wideband receiver, which is based on the signal processing model of the receiver. Noise-amplitude-modulated jamming and noise-frequency-modulated jamming signals are simulated.
null Wang Yang, null Li Shiguo, null Jin Lin, null Yu Li   +3 more
openaire   +1 more source

Mainlobe Jamming Suppression with Frequency Diverse Array Radar

2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019
The range-angle beam-pattern of frequency diverse array has the potential to deal with main-lobe jamming. Regardless of the beam-pattern's time-variance, the transmit-receive beam-pattern can focus on targets in range and angle dimensions. But the range-angle beam-pattern of FDA cannot distinguish between the true targets and the false targets ...
Jiantao Shi, Jun Sun, Yuhao Yang, Ning Wang   +3 more
openaire   +1 more source

Optimal Nonlinear Filtering for Jamming Suppression

1978
Abstract : The objective of this effort is to investigate the application of nonlinear signal processing techniques to the suppression of jammer signals that are potential threats to BMD radars. A broad class of potential jamming signals are identified on the basis of their statistical and spectral characteristics.
openaire   +1 more source

Adaptive mainbeam jamming suppression for multi-function radars

Proceedings of the 1998 IEEE Radar Conference, RADARCON'98. Challenges in Radar Systems and Solutions (Cat. No.98CH36197), 2002
One aspect of naval defence involves surveillance of the airspace in the vicinity of one's vessel. Both high-altitude and low-altitude missiles must be detected, tracked and targeted. A multi-function radar (MFR) that uses an electrically steerable pencil beam (phased array) to search the volume around the ship can provide the required capability ...
T.J. Nohara, P. Weber, A. Premji
openaire   +1 more source

SUPPRESSION OF JAMMING IN EXCITABLE SYSTEMS BY APERIODIC STOCHASTIC RESONANCE

International Journal of Bifurcation and Chaos, 2004
To suppress undesirable noise (jamming) associated with signals is important for many applications. Here we explore the idea of jamming suppression with realistic, aperiodic signals by stochastic resonance. In particular, we consider weak amplitude-modulated (AM), frequency-modulated (FM), and chaotic signals with strong, broad-band or narrow-band ...
Lai, Ying-Cheng, Liu, Zonghua, Nachman, Arje, Zhu, Liqiang   +3 more
openaire   +1 more source

Anti-main lobe suppression jamming using signal separation network

Digital Signal Processing
Yunyun Meng
exaly   +2 more sources

Discussion on Suppression Coefficient of Projectile-Carried Communication Jamming

2021
Focusing on the problem of jamming suppression coefficient in the design and development of projectile-carried communication jammer, this paper combed the existing references from three aspects: the concept of jamming suppression coefficient, the common values of jamming suppression coefficient, and the definition of jamming level.
Jie Zhang, Haixia Shao, Baohong Ma
openaire   +1 more source