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Is it possible to "boost" a WiFi signal using an aluminum soda can?

What you show is a crude reflector. Yes, you can use reflectors around a antenna to get more power in a particular direction at the expense of other directions. This can be useful when the other ...
• 11.3k

Can wifi signal reception be improved by opening a door?

This is engineering. Test it. It's not like it takes a lot of money or time to do experimentally. As far as what the theory says, it will always have a slight effect. The magnitude of this effect ...
• 236
Accepted

Best way to send a signal in a very low frequency (250Hz)?

With a sample rate of 250 Hz, you could easily send 100 bits/second or more. In 0.5 second, that would be on the order of 50-60 bits. The question is, what bit patterns should you select that are ...
• 6,759

What are the meanings of the second argument to the convolution?

I think the diverse range of names for the second argument arises from the fact that the convolution operation is so useful in so many different fields. It is helpful to recall what the convolution ...
• 6,316

Finding the sampling period to avoid loss of signal

The smallest feature that you need to capture is the dip between 3.5 and 4. If you use a sampling period which is greater than 0.5, then you may end up not capturing this feature. The sampling ...
• 6,316

What is a "window of length N" in a signal processing algorithm?

"Window" is often used to mean a successive set of samples processed as a batch. In this case it appears that the algorithm works on batches of 500 samples at a time.
• 11.3k

Are there offsets in these accelerometers signals?

Alhtough this answer should be awarded to Pete, because he has spotted it first. The accelerometer has a sensitivity of 5%, which corresponds to 100[mV/g]. what you are measuring is 0.1[m/s^2], which ...
• 22.9k

Is it possible to "boost" a WiFi signal using an aluminum soda can?

This might work to boost the signal in one direction, but it will reduce it in other directions. Antennas are often built with elements (like your drink can) that couple to the primary radiator. These ...

What is a "window of length N" in a signal processing algorithm?

The term time-window or often just window is used to mean a short period of time during which something is possible, or during which you observe something, or during which you look for something. ...
• 5,960

signal-to-interference-plus-noise ratio (SINR) and others calculation

First, you should link in a reference to the Hata and Ericsson models. I haven't heard of them, and a quick search on Google didn't give anything. Path loss and received signal strength are typically ...
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