Results 211 to 220 of about 1,202 (266)

Rethinking Microbial Chemical Ecology: Secondary Metabolites as Concentration-Dependent Signaling Hubs with Implications for Anti-Virulence Intervention. [PDF]

Microorganisms
Cheng J, Zhao Z, Teng B, Zhang W, Wang Y.   +4 more
europepmc   +1 more source

Decoding serotonin: the molecular symphony behind depression. [PDF]

Front Cell Neurosci
Shu Y, Tian L, Wang X, Meng T, Yu S, Li Y.   +5 more
europepmc   +1 more source

Emergence of KPC-2 and NDM-13-coproducing carbapenem-resistant hypervirulent <i>Klebsiella pneumoniae</i> with high-risk sequence type ST11. [PDF]

Front Microbiol
Tao J, Wang L, Yang N, Fu H, Hu X, Lai T, Jin J, Li G.   +7 more
europepmc   +1 more source

Spatially Resolved Quantum Sensing with High-Density Bubble-Printed Nanodiamonds. [PDF]

Nano Lett
Blankenship BW, Li J, Jones Z, Parashar M, Zhao N, Singh H, Li R, Arvin S, Sarkar A, Yang R, Meier T, Rho Y, Ajoy A, Grigoropoulos CP.   +13 more
europepmc   +1 more source

FX ENTRAIN: scientific context, study design, and biomarker driven brain-computer interfaces in neurodevelopmental conditions. [PDF]

Front Neurosci
Citarella J, Siekierski P, Ethridge L, Westerkamp G, Liu Y, Blank E, Voorhees L, Batterink L, Jones SR, Smith E, Reisinger DL, Nelson M, Binder DK, Razak KA, Miyakoshi M, Wu S, Gilbert D, Horn PS, De Stefano LA, Erickson CA, Pedapati EV.   +20 more
europepmc   +1 more source

Design of a Costas loop down converter

2009 52nd IEEE International Midwest Symposium on Circuits and Systems, 2009
This paper presents the the design of a digital down converter (DDC) using a digital Costas loop in a field programmable gate array (FPGA). To reduce the power dissipation we use the CIC filter to perform an efficient decimation, and then follow it with a finite impulse response (FIR) compensation filter that runs at a reduced sampling rate.
Mike Roddewig, Seyed A. Zekavat, Saeid Nooshabadi   +2 more
openaire   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Improving Frequency Acquisition of a Costas Loop

IRE Transactions on Communications Systems, 1977
A Costas loop for tracking a BPSK signal does not acquire when the initial frequency error is comparable to the loop bandwidth. This paper describes methods for deriving control proportional to frequency error so as to improve the frequency acquisition capability by an AFC augmentation.
exaly   +3 more sources

False Lock Performance of Shuttle Costas Loop Receivers

IEEE Transactions on Communications, 1978
The false (sideband) lock problem in Shuttle Costas loop receivers, in the presencse of noise, is assessed in this paper. False lock margin is defined depending on symbol signal-to-noise ratio rather than in the absence of noise as reported earlier in [4], [5].
W Lindsey
exaly   +2 more sources

Costas Loop Experiments for a 10.6 µm Communications Receiver

IEEE Transactions on Communications, 1983
We have transferred the principle of the Costas-type nonlinear phase-locked loop to the \lambda = 10.6 \mu m wavelength of CO 2 lasers. The ability of the optical Costas loop to regenerate the carrier of a binary phase-shift-keyed input signal and to perform coherent demodulation was demonstrated at a data rate of 20 Mbits/s.
A Scholtz, E Bonek
exaly   +2 more sources