Method and a system for analyzing a spectral signature of a compound specimen

A system for analyzing a spectral signature of a compound specimen, the system comprising:

• a plurality of devices configured for obtaining a spectral signature of compound specimen, said spectral signature including at least one light property of a plurality of wavelengths in said spectrum transmitted through said compound specimen;
• each one of said devices includes a controller configured for extracting characterizing features of said spectral signature, said characterizing features being light properties of predetermined wavelengths within said spectrum;
• a remote server for receiving said characterizing features and for comparing said characterizing features with corresponding features stored in a database, said corresponding features are corresponding properties of an expected spectral signature of a specimen including an examined substance;
• wherein said device is configured to receive verifying data regarding existence of said examined substance in said compound specimen, and to send said remote server said characterizing features of said of compound specimen along with said verifying data;
• wherein said remote server is configured to conduct classification of said characterizing features in accordance with said verifying data;
• wherein said remote server is further configured for collecting classification data of a plurality of spectral signatures and for updating said corresponding features in accordance with the classification data;
• wherein said remote server is further configured for applying principal component analysis or partial least squares regression for determining said predetermined wavelengths in accordance with light properties at said predetermined wavelengths.