A new variety of mandarin designated \u2018Valley Gold\u2019 is described. In a sample analysis device 1 in which a sample is to be held in a porous sheet 13, supporting films 11 and 12 are stuck on front and rear faces of the porous sheet 13, respectively, and a sample supply hole 14 is formed in a part of the supporting films. The system can include a first lock engageable to selectively prevent movement about the first joint, a second lock engageable to selectively prevent movement about the second joint, and a third lock engageable to selectively prevent a height of the fourth end from being adjusted relative to the base or extension arm. Accordingly, chromatic dispersion compensation and dispersion slope compensation can be realized over a wide signal band. The distance to a target is determined by calculating spectra of Z-point fast Fourier transforms for the distance lines by shifting a Z-point FFT window incrementally over the Z+E distance cells of a distance line.