Nyquist folding receiver (NYFR) is a novel ultra-wideband receiver architecture which can realize wideband receiving with a small amount of equipment. Linear frequency modulated/binary phase shift keying (LFM/BPSK) hybrid modulated signal is a novel kind of low probability interception signal with wide bandwidth. The NYFR is an effective architecture to intercept the LFM/BPSK signal and the LFM...

Compressive Sensing (CS) is a novel signal sampling theory under the condition that the signal is sparse or compressible. It has the ability of compressing a signal during the process of sampling. Reconstruction algorithm is one of the key parts in compressive sensing. We propose a novel iterative greedy algorithm for reconstructing sparse signals, called Modified Regularized Adaptive Matching ...

SYK tyrosine kinase has emerged as a master regulator of cellular resistance to oxidative stress (OS) by mediating the activation of the anti-apoptotic nuclear factor kappaB and phosphatidylinositol-3 kinase/AKT pathways after OS exposure. Here, we present unprecedented experimental evidence that polo-like kinase 1 (PLK1) is the upstream regulator of SYK in B-lineage acute lymphoblastic leukaem...

This work presents and estimates the break-lock in phase locked loop (PLL) synthesizers for monopulse radar applications through experimental measurements and computer simulation. Sinusoidal continuous wave (CW) and linear frequency modulated (LFM) signals are used as repeater jamming signals. The CW jamming signal power as a function of radar echo signal power at break-lock is estimated for di...

Overweight and obesity is one of the risk factors for developing CVD. At present, very little is known about the acute effects of dietary fibre on lipids, glucose and insulin, resting energy expenditure and diet-induced thermogenesis in overweight and obese individuals. This study examined the postprandial metabolic effects of dietary fibre in overweight and obese men. Ten overweight and obese ...

Abstract We propose a single channel blind source separation algorithm for convolutively mixed linear frequency modulation (LFM) signals based on smoothed Wigner-Ville distribution (SWVD) time-frequency analysis, Canny edge detection, and Hough transform detection. First, the SWVD analysis diagram is obtained as an image LFM characteristics. Second, detection performed image. Then, used to dete...

To complete the sparse sampling of linear frequency modulation (LFM) signals and estimate parameters, authors proposed an improved finite rate innovation (FRI) system to achieve goal. First build a mathematical model based on Z-transform, then they input LFM signal into modified FRI process output this model, which enables estimation parameters using only four points. The error final experiment...

A typical geoacoustic inversion procedure involves powerful source transmissions received on a large-aperture receiver array. A more practical approach is to use a single moving source and/or receiver in a low signal to noise ratio (SNR) setting. This paper uses single-receiver, broadband, frequency coherent matched-field inversion and exploits coherently repeated transmissions to improve estim...

An interference excision algorithm in direct-sequence spread spectrum (DS-SS) communication systems is introduced. The proposed excision algorithm is developed for linear frequency modulated (LFM) signals that have broadband frequency characteristics. It is based on the time-frequency analysis of received signals employing short-time Fourier transformation (STFT). To analyze the interference, S...