Patent ID: 7890280

Claim:
A frequency modulated continuous wave (FMCW) backscattering measurement system, comprising a non-transitory computer readable medium having stored thereon a computer readable program code for performing a method for processing a data series obtained by frequency modulated continuous wave (FMCW), the data series comprising data points from one or more channels, the method comprising: a. measuring a number of data points, corresponding to N da different values of frequency of modulation {f m,0 , f m,1 , f m,n , . . . , f m,Nda }, thereby obtaining at least one primary data series from each channel, b. performing one or more processing steps comprising at least part of said primary data series to obtain at least one secondary data series comprising N data points for the values of frequency of modulation {f 0 , f 1 , f n , . . . , f N }, said processing steps comprises filling in data points with a filling series {f f,0 , f f,1 , f f,n , . . . , f f,N-Nda } comprising values of frequency of modulation not included in {f m,0 , f m,1 , f m,n , . . . , f m,Nda }, c. performing a transformation of said secondary data series from frequency domain to obtain at least one back scattering curve in space domain, d. optionally relating said back scattering curve(s) to one or more physical properties as a function of position, wherein N>N da .