Precise navigation, as a method for guiding vehicles from one point to another, is an important subject these days especially in navigation of aircraft. Global satellite systems (GNSSs) are capable tools such purpose. Any intentional or unintentional interference signals may cause risks deadly accidents. Therefore, it tremendously control airports harbors and locate any existing radio frequency...

Adaptive filters are primary methods to remove the power line interference from the ECG signal. The frequency range of ECG signal is generally 0.05 Hz to 100 Hz, and that of the power line interference is 50 Hz which lies in the ECG signal band. So, it has become very crucial to remove the power line interference from the ECG signal. In this paper Kalman based least mean square (KLMS) filter ha...

Near-field coupling communication (NFCC) is a technology that uses the surface of the human body as a transmission path. To suppress the radiation signal from the human body, NFCC devices use a carrier frequency of less than 10 MHz. Because the radiation signal has the potential to disturb the other NFCC links, the radiation signal from other devices needs to be suppressed to ensure stable NFCC...

In order to suppress the interference of the strong fractional noise signal in discrete-time ultrawideband UWB systems, this paper presents a new UWB multi-scale Kalman filter KF algorithm for the interference suppression. This approach solves the problem of the narrowband interference NBI as nonstationary fractional signal in UWB communication, which does not need to estimate any channel param...

This article looks at quantitative measures of conformity degree of received and transmitted information messages, selected depending on message nature, and defines main approaches to assessment of information systems interference immunity. Author analyzed peculiarities of information receiving depending on signals purposes on stages of signal detection, sorting out of signals and message recov...

Diverse microbial communities coordinate group behaviors through signal exchange, such as the exchange of acyl-homoserine lactones (AHLs) by Gram-negative bacteria. Cellular communication is prone to interference by neighboring microbes. One mechanism of interference is signal destruction through the production of an enzyme that cleaves the signaling molecule. Here we examine the ability of one...

Narrowband interference can severely degrade the performance of GPS receivers. Detecting the presence of interference and then characterizing it can lead to its removal. Receivers can be reconfigured to focus on other signals or satellites that are less vulnerable to that interference at that moment. Using hardware reconfigurability of FPGA receivers and characterizing the effect of narrowband ...