Webster et al, IEEE Trans. on Geosc. and Remote Sensing, vol. GE-19, #2, pp. 91-94, Apr. 1981. |
"Efficient Multistage Multirate Digital Filtering of LWD Sonic Waveforms" by Shenoy & Hsu pp. 1-16. |
"Efficient slowness computation from sonic waveforms" by Shenoy & Hsu pp. 1-10. |
"Slowness estimation from sonic logging waveforms" Geoexploration 27 (1991) pp. 215-256. |
"Acquisition & Analysis of Sonic Waveforms From a Borehole Monopole . . . " by Harrison et al. SPE20557 pp. 267-282. |
"A New Sonic Array Tool for Full Waveform Logging" by Morris et al, SPE 13285. |
"Semblance processing of borehole acoustic array date" by Kimball et al. Geophysics vol. 49, No. 3 pp. 274-281. |
Multirate Digital Signal Processing pp. 52-57 by Crochiere. |
"A Comparison of Efficient Beamforming Algorithm" by Mucci, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-32, No. 3. Jun. 1984 pp. 548-558. |
"A Novel Approach to Digital Beamforming" by Pridham et al., J. Acoust. Soc. Am. 63(2) Feb. 1978 pp. 425-434. |
"Digital Interpolation Beamforming for Low-Pass and Band Pass Signals" by Pridham et al; Proceedings of the IEEE, vol. 67, No. 6, Jun. 1979. |
Chap. 5 Porosity Logs from Schlumberger Log Interpretation Principles/Applications, Oct. 1987. |