Help in split step Fourier method with initial rectangular pulse

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The discussion centers on the challenges faced when using the split-step Fourier method in MATLAB with a rectangular pulse shape instead of a chirped pulse. Users are questioning whether the method has limitations specifically with rectangular pulses or if there might be errors in the provided MATLAB code. There is a request for further insights or conclusions regarding the issue. The conversation highlights the need for clarification on the method's applicability to different pulse shapes. Overall, the effectiveness of the split-step Fourier method with rectangular pulses remains uncertain.
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Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 
For simple comparison, I think the same thought process can be followed as a block slides down a hill, - for block down hill, simple starting PE of mgh to final max KE 0.5mv^2 - comparing PE1 to max KE2 would result in finding the work friction did through the process. efficiency is just 100*KE2/PE1. If a mousetrap car travels along a flat surface, a starting PE of 0.5 k th^2 can be measured and maximum velocity of the car can also be measured. If energy efficiency is defined by...

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