### Marjan Prodanov (@max3031)

Over the past few years I worked on the data acquisition system that can acquire biomedical signals. I am interested to learn how to process sampled data in order to obtain proper signal parameters such are frequency spectrum components, RMS in case of non-coherent sampling etc. My knowledge includes: Routing and desinigning PCB and circuit schematics for mixed signal systems where separating analog and digital ground in proper way is esential for good ADC performance. Advanced microcontroller programming skills (NXP and Microchip) basic signal processing theorems(Nyquist) needed for proper analog filter design

## Re: Processing for realistic animation dynamics

Thanks for the help. Definitely this problem goes in the direction of physics of execution.

## Processing for realistic animation dynamics

Dear,I have a dynamic animation of the train going up and down like a rollercoaster. Problem is since this animation is choppy and dynamics of the animation is affected. From...

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Hi Mr. Dan,Whole goal is to robustly suppress noise while maintaining smooth response.Yes that can be the solution. Quantization steps/thresholds as I made this...

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Hi Mr. Dan,Yes I see your point. However this looks like it was modeled with EWMA or first order iir. The way it is done is non-linear for sure. Reason why was to...

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Hi Mr. Lyons,I will try to explain. I used fixed 0.04 quantization stepsSo at first if (abs(x[n] - y[n-1])) < 0.02 step = 0 (just in first case 0.02 is used)else...

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Hi Mr. Artmez,Yes it is correct. This is like a weighted filter. You may see how usual simple first order IIR output response compares with this differenced IIR....

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

I have all math capabilities and there is no problem of doing it in double precision.All that I am concerned with is weather my filter is stable? I divided the difference...

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

alfa = 1.991635132e-4.Correct alfa is way below 1.‬

## Re: Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Well these are questions that I would like to learn. Real world examples of when this kind of processing is used.alfa term is just a constant forgetting rate. It...

## Difference amplitude (x[n] - y[n-1]) quantization in first order iir

Hi,I am dealing with the first order iir filter. Formula is y[n] = y[n-1] + alfa*(x[n] - y[n-1]). x[n] is new input sample while y[n] is the output. I quantized...

## Re: damping filter - finite stationary error

Ok I can accept that system is non-linear and that there is some kind of limiter. But the question is how to implement that? I am not interested in some simple ad-hoc...

## Re: damping filter - finite stationary error

And how to obtain desired_signal max? I don't have that information. All I have is the input signal from input.txt. That is why I told you it can be achieved with...

## Re: damping filter - finite stationary error

There is moving average if you take a look at the provided code. Limiter does not sound good.

## Re: damping filter - finite stationary error

Details are provided.

## Re: damping filter - finite stationary error

Details are provided now. Sorry for the first post that did not include them.

How?

## damping filter - finite stationary error

Hi,I need to make a damping filter that will produce for the given input signal desired output.  In the desired output there is always some stationary error that...

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