Performance Analysis of ICA in Sensor Array
AbstractAs the best-known scheme in the field of Blind Source Separation (BSS), Independent Component Analysis (ICA) has been intensively used in various domains, including biomedical and acoustics applications, cooperative or non-cooperative communication, etc. While sensor arrays are involved in most of the applications, the influence on the performance of ICA of practical factors therein has not been sufficiently investigated yet. In this manuscript, the issue is researched by taking the typical antenna array as an illustrative example. Factors taken into consideration include the environment noise level, the properties of the array and that of the radiators. We analyze the analytic relationship between the noise variance, the source variance, the condition number of the mixing matrix and the optimal signal to interference-plus-noise ratio, as well as the relationship between the singularity of the mixing matrix and practical factors concerned. The situations where the mixing process turns (nearly) singular have been paid special attention to, since such circumstances are critical in applications. Results and conclusions obtained should be instructive when applying ICA algorithms on mixtures from sensor arrays. Moreover, an effective countermeasure against the cases of singular mixtures has been proposed, on the basis of previous analysis. Experiments validating the theoretical conclusions as well as the effectiveness of the proposed scheme have been included. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Cai, X.; Wang, X.; Huang, Z.; Wang, F. Performance Analysis of ICA in Sensor Array. Sensors 2016, 16, 637.
Cai X, Wang X, Huang Z, Wang F. Performance Analysis of ICA in Sensor Array. Sensors. 2016; 16(5):637.Chicago/Turabian Style
Cai, Xin; Wang, Xiang; Huang, Zhitao; Wang, Fenghua. 2016. "Performance Analysis of ICA in Sensor Array." Sensors 16, no. 5: 637.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.