For the detection and segmentation, I know several techniques:

(1) Direct thresholding

(2) Finite Moving Average Filter

(3) Savitzky-Golay Filter

(4) Constant False Alarm Rate

(5) Wavelet Transform

For the deinterleaving task, I know

(1) Cumulative Difference Histogram (CDIFF)

(2) Sequence Difference Histogram (SDIFF)

(3) Sequence Searching

Are there any techniques better than those I have mentioned?

Many thanks!