Title :
Spectrum measurement via low cost Spectrum Sensor on-a-chip
Author :
Chang, Cheng-Chun ; Chen, Chien-Chou ; Lin, Nan-Ting ; Kurokawa, Umpei ; Choi, Byung I.
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan
Abstract :
Fine spectrum measurement with the application of non-negative least-square (NNLS) algorithm to low-cost filter-based Spectrum Sensor is demonstrated. Compare to conventional Moore Penrose pseudo-inverse technique, NNLS is found particularly effective for noise reduction in reconstruction of narrow-band spectra. Low cost spectrometer with an on-a-chip scale can be therefore anticipated.
Keywords :
least squares approximations; optical sensors; sensor arrays; spectrometers; NNLS algorithm; low cost spectrometer; low-cost filter-based spectrum sensor; narrow-band spectra reconstruction; noise reduction; nonnegative least-square algorithm; spectrum measurement; spectrum sensor on-a-chip; Artificial neural networks; Optical filters; Optical interferometry; Optical sensors; Optical variables measurement; Sea measurements; Signal processing algorithms;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682727
