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Next: De-spiking with median smoothing Up: Noisy data Previous: Minimizing the Cauchy function


Sometimes noise comes in isolated spikes. Sometimes it comes in bursts or bunches (like grapes). Figure [*] is a simple one-dimensional example of a periodic signal plus spikes and bursts. Three processes are applied to this data, despike and two flavors of deburst. Here we will examine the processes used. (For even better results, see Figure [*].)

Figure 3
Top is synthetic data with noise spikes and bursts. (Most bursts are a hundred times larger than shown.) Next is after running medians. Bottom is after the two processes described here.

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