# Dsp.stackexchange.com

### Calculating transfer function of a linear time varying system?

**dsp.stackexchange.com > questions**

...For a **LTI** system it doesnt matter when we excite the system with the **Dirac** signal we will always get the same impulse response.However that is not... ...If we excite a system with the **Dirac** signal $delta(t)$ we get in the output the impulse response

### Getting displacement from the accelerometer data for vertical motion

**dsp.stackexchange.com > questions**

### sample rate conversion

**dsp.stackexchange.com > questions**

### Is the following system LTI and what is its purpose?

**dsp.stackexchange.com > questions**

...Firstly, is this overall system **LTI**? I don't think so because the downsampling **operator** is not time-invariant but I am not sure....

### Comparison of matched filter methods

**dsp.stackexchange.com > questions**

...Based on the feedback I got, I tested out the dicrete version of this identity in **Matlab**, fft(circshift(flip(conj(x)), 1)) == conj(fft(x))....

### Spark of the array manifold of a random antenna array

**dsp.stackexchange.com > questions**

...We know that **Vandermonde** matrices can be considered to be full spark, since the abovementioned arrays do not render a **Vandermonde** structure of the...

### Time of arrival

**dsp.stackexchange.com > questions**

...$**TOA**=frac{d}{c}+t_e$ where $c$ the wave speed,

### Trade offs in window based design of FIR filter

**dsp.stackexchange.com > questions**

...It shows rectangular window has minimum value of stop band attenunation and transition width and as we go on towards Hamming and **Blackman** window,... ...have maximum stop band attenuation and minimum transition width so in our window based design we can have either maximum stop band attenuation(**Blackman**...

### Is it possible to force the latent variables of a kalman filter to be small?

**dsp.stackexchange.com > questions**

...This is perhaps a bit of a weird idea but suppose I want the latent variables of a kalman filter to be small (like as if **the states** were being regularized...

### Brrrrrrrrr clanky clank VHS noise

**dsp.stackexchange.com > questions**

...Y-axis is **Hertz**. Plots code....