[permalink] [id link]
The 20-to-1 ratio for cochannel interference embodies one of the fundamental limiting principles which we must always take into account in AM assignments and allocations -- that signals from a particular station are potential sources of objectionable interference over an area much greater than that within which they provide useful service.
from
Brown Corpus
Some Related Sentences
20-to-1 and ratio
An example of the overall standards applied is the 20-to-1 ratio established for the determination of that degree of cochannel interference which is regarded as objectionable.
20-to-1 and for
In the fight, held at Brakpan, South Africa, Lewis and Rahman traded hard blows for five rounds before Rahman, a 20-to-1 underdog, stunned the crowd by defeating Lewis via 5th-round KO.
20-to-1 and .
The student-faculty ration is 20-to-1.
ratio and for
Determine for each State ( except the Virgin Islands, Guam and Puerto Rico, and, prior to 1962, Alaska and Hawaii ) that percentage which bears the same ratio to 50% as the particular State's average per capita income bears to the average per capita income of the U. S..
Determine the ratio that the amount being allotted is to the sum of the products for all the States.
If, for some reason such as economy, we are not going to develop aircraft nuclear propulsion with a sense of national urgency, then we should turn our effort to developing jet engines with a thrust-to-weight ratio of 12 or 15 to one.
This method of computing compression ratio cannot be used accurately for engines that have pistons with either domed or irregularly shaped heads.
, for Rear axle gear ratio
To determine car speed for a given combination of engine speed, gear ratio, and tire size, the formula is: Af.
To determine the rear axle gear ratio for a combination of the other three factors, the formula is: Af.
The fraction of exchange was determined as the ratio of the counts / minute observed in the carbon tetrachloride to the counts / minute calculated for the carbon tetrachloride fractions for equilibrium distribution of the activity between the chlorine and carbon tetrachloride, empirically determined correction being made for the difference in counting efficiency of Af in Af and Af.
It will be seen that where the scope is similar, the Athabascan ratios come out somewhat higher ( as indeed they ought to with a total ratio of 2.8 as against 3.5 or 4: 5 ) except for verbs, where alone the Athabascan ratio is lower.
They might, for example, plot it exactly as is, or they might make ten day moving averages of it, or longer moving averages, or they might simply plot the ratio of odd-lot purchases to odd-lot sales.
The gallium / germanium ratio is higher than that for ordinary igneous, metamorphic, or sedimentary matter as a result of selective volatilization of the components of the tektite.
Eta-squared describes the ratio of variance explained in the dependent variable by a predictor while controlling for other predictors.
The stronger of two acids will have a higher K < sub > a </ sub > than the weaker acid ; the ratio of hydrogen ions to acid will be higher for the stronger acid as the stronger acid has a greater tendency to lose its proton.
** Display aspect ratio-The aspect ratio for computer displays.
Before the 1989 series began, the win-loss ratio was almost even, with 87 wins for Australia to England's 86, 74 having been drawn.
The win-loss ratio in Ashes Tests ( up to and including the 2011 series ) stands at 123 wins for Australia to 100 wins for England, with 87 draws.
The depth of water is necessary for determining scope, which is the ratio of length of cable to the depth measured from the highest point ( usually the anchor roller or bow chock ) to the seabed.
They used a calorimeter to estimate the heat evolved per unit of carbon dioxide produced, eventually finding the same ratio for a flame and animals, indicating that animals produced energy by a type of combustion reaction.
However, often it is most advantageous for the player selecting to choose to let the more expensive chains remain on the board ( and trade in their stock of the less expensive chain at the 2-to-1 ratio described below ).
ratio and interference
: S / N is the signal-to-noise ratio ( SNR ) or the carrier-to-noise ratio ( CNR ) of the communication signal to the Gaussian noise interference expressed as a linear power ratio ( not as logarithmic decibels ).
Strong destructive interference is frequently referred to as a deep fade and may result in temporary failure of communication due to a severe drop in the channel signal-to-noise ratio.
The wide bandwidth makes it possible to send with a very poor signal-to-noise ratio of much less than 1 ( less than 0 dB ) according to the Shannon-Heartly formula, meaning that the transmission power can be reduced to a level below the level of the noise and co-channel interference ( cross talk ) from other message signals sharing the same frequency.
Unlike a conventional communication system, however, a DSSS system does have a certain resistance against narrowband interference, as the interference is not subject to the process gain of the DSSS signal and hence the signal-to-interference ratio is improved.
Another stream of thought and evidence suggests that the effects of interference on recency and primacy are relative, determined by the ratio rule ( retention interval to inter item presentation distractor rate ) and they exhibit time-scale invariance.
; Common-mode rejection ratio ( CMRR ): In balanced audio systems, there are equal and opposite signals ( difference-mode ) in inputs, and any interference imposed on both leads will be subtracted, canceling out that interference ( i. e., the common-mode ).
The original iconoscope was noisy, had a high ratio of interference to signal, and ultimately gave disappointing results, especially when compared to the high definition mechanical scanning systems then becoming available.
Spreading the signal out over a wider bandwidth is a form of redundancy, and increases the signal-to-noise ratio, yielding longer range and less susceptibility to interference.
This limitation assures that the two have about the same broadcast range, and that they maintain the proper ratio of signal strength to each other so as not to cause destructive interference with each other at any given location where they may be received.
Signal strength is subject to slow fading, fast fading and interference from other signals, resulting in degradation of the carrier-to-interference ratio ( C / I ).
When carrier power is too high, excessive interference is created, degrading the C / I ratio for other traffic and reducing the traffic capacity of the radio subsystem.
ratio and embodies
Sometimes the Nautilus spiral alone is used ; it embodies the Fibonacci series and the golden ratio.
ratio and one
Apollonius of Perga, in On Determinate Section, dealt with problems in a manner that may be called an analytic geometry of one dimension ; with the question of finding points on a line that were in a ratio to the others.
M. von Rohr showed that for systems fulfilling neither the Airy nor the Bow-Sutton condition, the ratio a ' cos w '/ a tan w will be constant for one distance of the object.
The ratio of the flow speed to the speed of sound was named the Mach number after Ernst Mach, who was one of the first to investigate the properties of supersonic flow which included Schlieren photography techniques to visualize the changes in density.
Thus for an ion which traverses a 1 m flight path, across a time of 2000 ns, given an initial accelerating voltage of 5000 V and noting that one amu is 1 × 10 < sup >− 27 </ sup > kg, the mass-to-charge ratio ( more correctly the mass-to-ionisation value ratio ) becomes Z amu / charge.
For example, water is a compound containing hydrogen and oxygen in the ratio of two to one, with the oxygen atom between the two hydrogen atoms, and an angle of 104. 5 ° between them.
In 1945, the 7th Congress had 547 full and 208 alternate delegates representing 1. 21 million members, a ratio of one representative per 1, 600 members as compared to 1: 725 in 1927.
There are no sit-down interviews, and the shooting ratio ( the amount of film shot to the finished product ) is very high, often reaching 80 to one.
Thus, while values above one are common for newborns, the ratio dwindles until it is well below one for the older population.
( By comparison, the ratio in twelfth-century China was one bureaucrat for every 15, 000 people.
Even if one region has an absolute advantage as to the ratio of its outputs to inputs in every type of output, it may still specialize in the output in which it has a comparative advantage and thereby gain from trading with a region that lacks any absolute advantage but has a comparative advantage in producing something else.
The electric and magnetic parts of the field stand in a fixed ratio of strengths in order to satisfy the two Maxwell equations that specify how one is produced from the other.
He began to increasingly focus on performing and later claimed: " With time I became disenchanted with teaching because the ratio of girls to boys was more than ten to one, and once the girls reached sixteen the dropout rate was very high.
In mathematics and the arts, two quantities are in the golden ratio () if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one.
His international goals-to-games ratio remains one of the best for the country and he is regarded as one of the all-time best English strikers.
Without histones, the unwound DNA in chromosomes would be very long ( a length to width ratio of more than 10 million to one in human DNA ).
The eccentricity e equals the ratio of the distances from a point P on the hyperbola to one focus and its corresponding directrix line ( shown in green ).
While it is true that three power strokes typically occur per rotor revolution due to the 3: 1 revolution ratio of the rotor to the eccentric shaft, only one power stroke per shaft revolution actually occurs ; this engine provides three power ' strokes ' per revolution per rotor giving it a greater power-to-weight ratio than piston engines.
0.770 seconds.