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WorksheetsWireless Lecture 7
Total questions: 10
Worksheet time: 3mins
Which of the following technologies is not part of what this team developed?
Electrocardiography (ECG)
Machine Learning
Radars
WiFi
Which of the following is not a possible application of what the team worked on?
Monitoring the vital signs (e.g. heart rate) of a person
Monitoring the breathing of a baby
Monitoring the emotions of a person
Monitoring a person's ideas
What is special about the technology this team developed?
It mostly uses readily available WiFi devices
It can detect if a person is in a room or not, and then adjust the heating and cooling of the room
It uses very expensive electronics
It uses infra-red technology
The possibility of detecting humans and objects is a new technology that was never developed before.
True
False
Wireless research carried out at universities and research centers has the possibility to be turned into a profitable business.
True
False
The proposed technology uses a clever trick to cancel out some reflections. This trick is based on...
Using multiple transmitters
Using multiple receivers
Using advanced DSP algorithms
Hoping that reflections would cancel out on their own through destructive interference from one another
The team used a technique to detect if a person is moving behind a wall. This technique is also use in maritime surveillance and is called
Electrocardiography
Digital signal processing
Inverse synthetic aperture radar
Electroencephalography
When testing their system on the same person, it could accurately measure the emotions of that person ______ of the time.
91%
87%
33%
52%
In the early stages of developing their system, the researchers found out that the reflections from a person behind a wall was _______________ than those from the wall itself.
stronger
much weaker
much stronger
weaker
In the proposed technology, it is clear that _________ the number of antennas provides a higher accuracy.
decreasing
increasing
optimizing
