Sentences with phrase «lower frequency bands»

The larger size is part of how it captures lower frequency bands and more signal from fringe channels.
Even signals that are cyclic, but have distinct phase changes exhibit a large amount of interference in lower frequency bands.
Observations in high frequency bands require better weather conditions than observations in lower frequency bands.
One both hears them in a lower frequency band (50 to 264 Hz) than «whistling sand» and feels them — the ground trembles, the surface moves and ripples.
Now that the government has de-licensed select ultra low frequency bands, we could see Volvo introduce them in the future.

Not exact matches

In backhaul scenarios, 5G microwave series products are able to offer 10 Gbps high data rate and 25 µs low latency when traditional microwave frequency bands are used.
Using the 15 GHz and 28 GHz bands, the high frequencies known as millimeter wave, the signals in the test can transmit a large volume of information but don't travel as far or penetrate obstructions as easily as lower frequencies.
Moreover, the low - frequency band remained decreased after deep relaxation in the 36th week in the yoga group, all of these being adaptive autonomic responses to stress.
«In the yoga group, compared with values obtained before a practice session, the high - frequency band of the heartrate variability spectrum (parasympathetic or vagal activity) increased by 64 % in the 20th week and by 150 % in the 36th week, and both the low - frequency band (sympathetic) and the low - frequency to high - frequency ratio were reduced.
Although they last mere milliseconds at any single frequency, their great distances from Earth — and large quantities of intervening plasma — delay their arrival at lower frequencies, spreading the signal out over a second or more and yielding a distinctive downward - swooping «whistle» across the typical radio receiver band.
Today the picture of the radio spectrum is a color - coded colossus composed of hundreds of bands allotted by the FCC from frequencies as low as 6 kilohertz to as high as 300 gigahertz.
Mixing light from these dual frequency combs together creates a «beat» frequency shifted down to the radio band, low enough to be measured.
Additionally, the device has an unlimited free - spectral range, meaning it can operate over any range of frequencies, and shows excellent performance metrics in other standard measures of filter quality, including very low insertion loss and in - band ripples, low crosstalk and small delay variation.
Telecoms firm LightSquared of Reston, Virginia, has long communicated with its satellites using low - power signals in the adjacent frequency band, from 1525 to 1559 MHz, part of the «L band».
The «smart» poster or T - shirt uses a low - power reflector to manipulate the signal in a way that encodes the desired audio or data on top of the FM broadcast to send a «message» to the smartphone receiver on an unoccupied frequency in the FM radio band.
Another idea is to «shape» any background noise by taking it from the middle frequency bands, to which the ear is most sensitive, and redistributing it in higher or lower bands where human hearing is less acute.
They saw an increase in low - frequency («delta band») brain - wave activity in the nucleus accumbens, which peaked one second before a mouse indulged in a binge session.
Additionally, in zebra finches (Taeniopygia guttata), which produce a wide range of broad - band note types, expansion of the OEC has also been found to affect frequency patterns by shifting energy to relatively lower frequencies while amplitude generally increases (Ohms et al., 2010b).
A comparison of results obtained with both methods shows that a simple two - dimensional linear - elasticity model is able to reproduce quantitatively the low - frequency part of the band structure obtained from computationally much more demanding molecular dynamics simulations of a three - dimensional atomistic model.
A band - pass filter (0.009 — 0.08 Hz) was applied to the masked time series data to filter out any physiological noises and low - frequency drift [18], [41], [42].
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0.1.2 parallel evolution routine affecting the random numbers generation upon adjusting the cooling power along the stream contour line by one unit toward the power maximums of 999 units — if touched then set the power at the middle of the coverage band and rescale units by transposition of the position inside the coverage band, automatic routine virtual frequency parameter inline with twice of the interruption frequency for random number request, on idle sustaining the previous frequency divided by the power of lowest amplitude (that of the tangent point (touching point of the actual scan) of the streamline nearest to the component location inside the matrix)
0.1.4 parallel evolution routine affecting the random numbers generation upon adjusting the current - balance protection along the stream contour line by one unit toward the power minimums of 666 units — if touched then set the power at the middle of the coverage band and rescale units by transposition of the position inside the coverage band, automatic routine virtual frequency parameter inline with four times of the interruption frequency for random number request, on idle sustaining the previous frequency divided by the power of lowest amplitude (that of the tangent point (touching point of the actual scan) of the streamline nearest to the component location inside the matrix)
The lower frequency 800 MHz band is ideal for widespread coverage.
The licenses cover the «A» block of the lower 700 MHz band and the frequency block is already used by phones with LTE band 12 support, which are typically found on AT&T.
The shape of the CO2 absorption band, in terms of CSD per unit CO2 concentration, can be approximated as having a peak at some frequency (designated ν0) or wavelength (about 15 microns for CO2) with, on each side of that peak, a halving of that optical thickness for each amount BW1 or BW2 that one moves away from the center (toward lower or higher frequency, respectively)
The normal atmospheric skip radius at the lower RF frequencies would have diminished if there had been a lowering of these ionic bands, as the radiant reflective angles would have been sharper.
The analysis has shown that this same modification produces a more focused spectral peak in the intraseasonal band where the MJO should reside, but also reduces spurious low - frequency variable outside the intraseasonal band that is not observed in nature.
Hank, it's not that the frequency shifts to lower values, but that the band narrows.
In the intraannual, seasonal, and interannual frequency bands, TLC reflection likewise weakens robustly when the surface warms, and the weakened reflection arises primarily because the low - cloud cover decreases.
(1) the band pass seismic data for high - frequency detail, and (2) the velocity - density profile which provides the low frequency information.
But as we know from seismic data, we need an independent source of the low frequency information that is not in the band - pass signal.
cheap measurement, only wide band IR cameras are needed up there and as many ground sources emitting low energy long period pseudo random sequences at specific narrow thermal IR frequency bands as the world can afford, with built in GPS tracking and some communication abilities.
This band is at the upper end of the atmospheric window (or lower end depending on whether you're using wavelength or frequency).
The 50 - y low - pass filtered time series (containing the wide frequency band with periods longer than 50 y) is shown in Fig. 2 with the global mean from HadCRUT4, similarly low - passed, superimposed.
* The ground is a little warmer than the atmosphere, so that factor will mean some more photons going up than down (but since the back radiation is mostly from low layers, the atmosphere emitting the back radiation will not be that much cooler than the land so the effect from temperature will not be TOO great) * The ground is close to a black body for IR (emissivity = 1 for all IR frequencies), but the atmosphere has bands where it does not emit or absorb well (emissivity ~ 0) and other bands where it does emit or absorb well (emissivity ~ 1).
The low - complexity sub-band codec (SBC) divides the signal into multiple frequency bands and encodes each one independently.
These low - frequency, 700 MHz bands allow for better LTE coverage in suburban and rural locations.
Because Z - Wave uses a low - frequency radio band — 908.4 MHz in the United States — its devices will not interfere with a Wi - Fi network, though they might with cordless landline telephones.
Unlike other conventional bookshelf speakers that compromise performance with a two - way design, which requires the bass driver to reproduce a range of frequencies beyond its capabilities, Andrew Jones designed the Elite Bookshelf Speakers to be a true, three - way design, so each major frequency band is reproduced via its own dedicated front firing high -, mid -, and low - frequency driver.
As an innovative solution for the phase lag between the subwoofer and the main channel speakers caused by the network filter, Phase Control compensates the delayed bass to improve sound synchronization, making low sound more dynamic, while delivering clear reproduction of sound in the middle as well as high frequency bands.
Lower - frequency radio waves travel further and penetrate objects better, which in the real world means superior coverage in rural areas and inside buildings — everywhere that Verizon's network, thanks to a wealth of low - band spectrum, currently excels.
Cell networks operate across dozens of different «bands,» and broadly speaking, the lower the frequency, the better the coverage.
RMSSD is sensitive to high - frequency heart period fluctuations in the respiratory frequency range and is used as an index of vagal cardiac control.3) In the frequency - domain analysis, the power spectra of three frequency bands are calculated: very low frequency (VLF; 0.005 - 0.040 Hz), low frequency (LF; 0.04 - 0.15 Hz), high frequency (HF; 0.15 - 0.40 Hz), and total power (TP), including VLF, LF, and HF.1) For the non-linear complexity measure, the approximate entropy (ApEn) is calculated.4) The ApEn is a parameter that was developed to quantify the degree of regularity versus unpredictability in a higher dimensional attractor reconstructed from a time series, such as the instantaneous heart rate time series.5, 6) A lower ApEn value reflects a higher degree of regularity, and the higher the entropy value, the more unpredictable the time series.5, 6)
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