Two-dimensional Fourier compression

摘要

A two-dimensional Fourier compression method has been developed as a tool for potable sensors. Ion mobility spectrometry(IMS) yields an advanced chemical sensor for monitoring trace quantities of compounds in air. Two- dimensional Fourier compression can increase the com- pression efficiency without compromising the quality of compressed data. A criterion for the automatic determi- nation of the compression efficiency or cutoff frequency has been developed and evaluated with IMS data.