Using System Objects in complex programs (DSP)

Question

Andrew McLean 2019-6-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/467070-using-system-objects-in-complex-programs-dsp

回答： Honglei Chen 2019-6-17

I'm looking for advice on best practice in using system objects in complex programs.

The examples in the documentation I've spotted so far are all oriented around either:

toy problems (read a file, filter it, write it), or
creating system objects from scratch

I'm looking at how to structure a more complex program combining many system objects. Specifically, I want to modularise the code rather than have a massive main program calling dozens of system objects. Any ideas where I should look?

Here is an example. I'm planning a program that processes signals embedded in a long timeseries. Just one of the tasks is to locate the times at which synchronisation pulses occur. The obvious approach is to apply a matched filter to the timeseries and then an adaptive threshold to the output of the matched filter, perhaps using the system objects:

dsp.FIRFilter
dsp.MovingAverage
dsp.MovingStandardDeviation

I'm considering creating my own system object that calls the system objects listed above. But I haven't seen any examples that do that. Is that because there is a better way?

Any advice greatefully received.

Andrew