QLSA: A Software Library for Spectral Estimation in Low-Frequency Noise Measurement Applications

Abstract

A public domain software library is introduced and discussed that aims at enabling the development of customized real-time spectral analysis applications in the field of Low-Frequency Noise Measurements. Besides allowing spectral and cross-spectral estimation on multiple channels, the library effortlessly enables the implementation of quasi-logarithmic frequency resolution for real-time spectral analysis over several decades of frequency. By exploiting the library, the burden of the selection of the proper spectral estimation parameters in any given application is virtually eliminated.