Questions tagged [signal-theory]

Anything related to signal theory, i.e. the branch of applied mathematics and engineering studying the properties of signals and the mathematical tools used to manipulate them.

Filter by
Sorted by
Tagged with
1 vote
2 answers

Solving Difference Equation Using Z-Transform

I was trying to solve a problem given in my textbook. I have attached the solution given in the book. I thought some modifications where needed to it and tried to solve in a different way. I ended up ...
Nikhil Kashyap's user avatar
5 votes
3 answers

Why the Wien Oscillator output is a sine?

I don't understand why the output signal of the Wien oscillator is a sinusoidal waveform. I can easily understand how a sine waveform can be generated by an oscillator which contains an LC circuit (...
Kinka-Byo's user avatar
  • 3,438
0 votes
0 answers

Signal analog sensor DHT22

What is the change in humidity percentage for every Celsius degree change on a DHT22 sensor? I would like to know the value before it is converted into a digital signal. For example, in temperature ...
Angga Amalul Ahli's user avatar
15 votes
2 answers

Through-Glass WiFi Antenna

I used to install a lot of in-car UHF radios & hands-free cell phone kits. I mostly worked on trucks & commercial utility vehicles fitted with bull bars, upon which I would mount a big, bulky, ...
voices's user avatar
  • 1,069
1 vote
2 answers

Change range of a DC signal without changing the offset with op amps

I have a voltage signal with the following range: low - 2.5VDC middle point - 2.725VDC high - 2.95VDC I would like to condition this signal to: low - 0.4VDC middle point - 1.65VDC high - 2.9VDC I have ...
Charles Wagner's user avatar