Abstract
The multiplexing offered by Hadamard-transform spectrometry can improve the signal-to-noise ratio at the output of a spectrometer. Traditionally, the inverse Hadamard transform (IHT) has been used to recover the individual spectral components, but the IHT does not take into account the nonidealities associated with the multiplexing process. A system model has been developed which addresses nonidealities in the multiplexer, noise introduced at the detector, and choice of method for spectrum recovery. A computer simulation of the model has been developed and can be used to examine the effect of certain nonidealities that may typically be encountered. Three different spectrum-recovery schemes are examined, and their relative performance is compared with regard to mean-square error and to the computational efficiency of the algorithms necessary to implement them. An example application is described, and the performance of the three spectrum-recovery schemes is discussed.
Original language | English |
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Pages | 439-445 |
Number of pages | 7 |
Publication status | Published - 1989 |
Event | IEEE Instrumentation and Measurement Technology Conference - Washington, DC, USA Duration: 1989 Apr 25 → 1989 Apr 27 |
Other
Other | IEEE Instrumentation and Measurement Technology Conference |
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City | Washington, DC, USA |
Period | 89/4/25 → 89/4/27 |
All Science Journal Classification (ASJC) codes
- Engineering(all)