# signal processing

1. ### Doubt on Signal Processing Stage

I am trying to implement some signal processing on sensor data for detecting tiny movement. the signal processing is doing on iq signals. In the source code I have some doubts that . Here I am adding the portion of Python Code . Can anyone please explain the following signal processing, and the...
2. ### Fliege Notch Filter Transfer Function Help

Hello! I am a student who would greatly appreciate some help determining the transfer function T(s) of a Fliege Notch Filter. I have attached a general schematic below, and have listed the values I will be using. To clarify, Voltage-in is the left side, and Voltage-out is the right side R1 =...
3. ### Aliasing not sure how to plot.

Alright, so I have a sinus-signal with A = 1, F = 3Hz. 3 Hz means it repeats itself 3 times/second. Then I have a sample frequency of 5 Hz, and if you do theoretical calculations, you get Falias = 5-3 = 2Hz. My problem? I'm not sure how it should be plotted on the actual graph? (the sample...
4. ### Component choices and general advice for a sensor fusion device for soil quality measurement

For a university project, I am designing and am further required to build a sensor fusion device for soil quality measurement in agricultural soil. The device will measure the volumetric water content (VWC) in the soil, the temperature of the soil and the light levels that the soil is exposed...
5. ### is the order of IIR filter proportional to the group delay?

I know that the group delay of filter made in chain is proportionnal to the total group delay. I want to know the relationship between the group delay of fitler of order 2 and 3 ?
6. ### Good Online/Books to learn DSP for work?

I have already studied DSP in my Master degree. However, As I am starting a job where a good percentage of my work is to design DIGITAL FILTERs, I still feel like I don't know that much on DSP and I really need to become a good engineer in this topic and take it to another level rather than...