John Roulston (@jfrsystems)

EE, BSc, Queens Belfast, 1970 MSc Digital Comms and Control HWU, Edinburgh. CEO Scimus Solutions

Re: Single-bit long-range low-power communication

Reply posted 1 year ago (03/05/2023)
The real question is "what is the maximum useful carrier energy" to communicate a single bit in noise, noting that energy is power x time. The comments on stability...

Re: understanding no perfect Zero-IF

Reply posted 4 years ago (07/25/2020)
Your baseband signal should have a bandwidth of 500kHz, so 300kHz error sound very serious no matter what you want to accomplish at baseband. 300kHz error in a 30MHz...
I think you would find John Rossiter's series of lectures on State-Space Design on YouTube interesting. Among other things he compares Optimal Control with Dead...
Your question is a valid question. It can't be answered without understanding the context of the control application and the statistics of the update process. If...

Re: Tunable power divider

Reply posted 4 years ago (03/03/2020)
I may have completely misunderstood your question.I assume you are talking about an analogue signal in a transmission line context, say 50 ohms. If so, you could...

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