Joe West (@Joe_West)

Semi-retired, now doing part-time consulting while enjoying my grand kids. EE by formal training, have done work in optics/lasers, digital servo-loops, phase-locked loops, RF/microwaves, switch-mode power conversion, the list goes on. It's all been (and continues to be) fun.

Not specifically mentioned is that if you are doing something that involves a derivative (time-rate-of-change), having jitter in your sampling interval can result...

Re: Sampling frequency of slow phenomena to obtain PSDs

Reply posted 4 years ago (01/15/2019)
I don't see anything at the 12 Hz noted by kjh. As I read the frequency scale, the first "peak" is at 1.2 Hz. (The center of the plot is at 10^0 Hz, which is to...

Re: choose the antialiasing filter

Reply posted 4 years ago (11/18/2018)
The 500ns settling time of the ADC is what is required for full 12-bits of resolution to a full-range step input. (Resolution doesn't address things like ADC linearity...

Re: choose the antialiasing filter

Reply posted 4 years ago (11/18/2018)
You state that you want 40db of attenuation at half the sampling rate. That is one part in 100 of voltage. Yet you also state that you want 10-bits of resolution....

Re: Carrier Recovery, Frequency and Phase in (CP)FSK

Reply posted 5 years ago (06/07/2018)
I do agree that a more complete description of the setup would be very helpful.But note that atorres stated in his initial posting that this was an _acoustic_ channel...

Re: Generating Bandlimited Noise

Reply posted 6 years ago (06/24/2017)
Dres wrote:We cannot sample infinite bandwidth signals. We can only sample a bandwidth up to the Nyquist Frequency = Fs/2This is correct only if the input signal...

Re: Who clones DSP56362?

Reply posted 6 years ago (03/08/2017)
The DSP56362UM.pdf "users manual" says (in part)---3.1.1.2 Program ROMThe program ROM contains customer-supplied code. For further information on supplying code...
Very slight "nit-pick" on Tim Wescott's response where he says "surprised, if there's not also a frequency-dependent directional characteristic; i.e., a given surface...

Re: Power Measurement of Complex Signal

Reply posted 6 years ago (10/19/2016)
You need to understand that dB is always the base-10 log of a _power_ ratio. dB = 10*log(P2/P1). This is commonly bastardized to be 20*log(V2/V1) which is correct...

Re: Tuning PID controllers

Reply posted 7 years ago (07/07/2016)
While I strongly agree with your "when it's good enough, STOP!" comment, my own preference for which order to adjust things in is different from yours. I'm curious...

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