MINIMUM-POWER ARRAY PROCESSING OF THE TFO LONG-NOISE SAMPLE
Abstract
The report investigates the effectiveness of the minimum-power array processing technique in determining seismometer inequalizations. The technique involves partitioning the seismometer array into two groups and designing MCF's for each group so that the mean-square-error between the two MCF outputs is a minimum under the constraint that the output power of one of the MCF's is unity. The two MCF sets are known as the group-coherence filters; the difference between these sets is known as the minimum-power array processor. Estimates of the noise wavenumber spectrum from the wavenumber responses of the group- coherence filters are distorted due to seismometer inequalization; however, a more reasonable estimate of the noise wavenumber spectrum from the wavenumber response of the minimum-power array processor should be possible because the minimas in the processor's wavenumber response correspond to the wavenumber regions where the wavenumber responses of the two group-coherence MCF's are very similar (e.g., at the peaks of the noise wavenumber power spectrum).
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 15, 1968
- Accession Number
- AD0829859
Entities
People
- Aftab Alam
- George D. Hair
- John P. Burg
Organizations
- Texas Instruments