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Selective fading or frequency selective fading is a radio propagation anomaly caused by partial cancellation of a radio signal by itself — the signal arrives at the receiver by two different paths, and at least one of the paths is changing (lengthening or shortening).
Frequency diversity: The signal is transmitted using several frequency channels or spread over a wide spectrum that is affected by frequency-selective fading. Later examples include: Later examples include:
Fading puppy syndrome (or fading puppy complex) is when a puppy dies within the first few weeks of life without a clear cause of death or clinical signs, that is to say, they fail to thrive. [1] Death usually occurs within the first five days of life, [ 2 ] but can happen up to ten weeks of age. [ 3 ]
With transmit diversity, multiple antennas transmit delayed versions of a signal, creating frequency-selective fading, which is equalized at the receiver to provide diversity gain. Since transmit diversity with N antennas results in N sources of interference to other users, the interference environment will be different from conventional ...
Coherence bandwidth is a statistical measurement of the range of frequencies over which the channel can be considered "flat", [1]: 7 or in other words the approximate maximum bandwidth or frequency interval over which two frequencies of a signal are likely to experience comparable or correlated amplitude fading.
Animal-assisted therapy is an alternative or complementary type of therapy that includes the use of animals in a treatment. [4] [5] It falls under the realm of animal-assisted intervention, which encompasses any intervention in the studio that includes an animal in a therapeutic context such as emotional support animals, service animals trained to assist with daily activities, and animal ...
Swimmer puppy syndrome is a rare condition in which dogs are born flat on their chests and abdomens, leaving them with spread eagled legs. This deformity leaves the canine unable to stand or walk. The British Bulldog is the dog breed that it found to suffer from the condition the most. [1]
The process of frequency illusion is inseparable from selective attention, due to the cause-and-effect relationship between the two, so the "frequent" object, phrase, or idea has to be selective. This means that a particularly triggering or emotive stimulus could catch someone's attention, possibly more than a mundane task they are preoccupied ...