I wasn't clear: x and z are pulse *trains* with irregular gaps between pulses. > > x is a rectangular pulse 4 sec long. Its onset and offset are known > with sub-millisecond precision. The onset varies irregularly -- it > doesn't fall on neat 1/2 sec or sec boundaries for example. > > y is a sampled continuous waveform. It is highly noisy, and it is > actually well represented by samples 1/2 sec apart or so. > > z is a very short pulse -- perhaps 5 ms long -- occurring at irregular times.
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