Experimental java based demultiplexer. Demultiplexing is conducted in the
frequency domain. This demultiplexer is suitable for postprocessing clips,
but is not suitable for real-time processing of each sample. Takes an audio
recorded from a DIFAR sonobuoy, ANSSQ 53B-D, and do the demodulation to
obtain the omnidirectional and two orthogonal directional signals (om ew ns).
NOTE: this function does demodulation, filters and then decimates the
NOTE: This function is experimental, is not guaranteed to work correctly,
propbably uses more memory than is reasonable, doesn't work very fast,
and, in general, will probably eat all your data.
REFERENCES Delagrange A (1992) DIFAR Multiplexer-Demultiplexer System, Latest
Improvements. Report for Naval Surface Warfare Center.Silver Spring, Maryland