With the development of shale gas exploration in China, use conventional logging tools has been introduced, and cross multipole array acoustic have gradually used to determine stress orientation shale. The direction fast shear waves (FSWs) is generally parallel horizontal maximum principal compression (SHmax). However, azimuth FSWs found be main strike (but not SHmax) structural fractures reser...

Introduction: The Xujiahe Formation in the Yingshan-Longgang area of Sichuan Basin has abundant tight oil and gas resources. However, complex geological conditions insufficient understanding magnitude direction in-situ stresses severely limit exploration development resources region. This made it difficult to carry out hydraulic fracturing horizontal well deployment Methods: Based on experiment...

Standard SAR-processing methods are based upon the assumption of a static scene. If targets are moving, their positions in the SAR-image are translated in azimuth and defocusing may occur. In this paper, some methods for the detection and imaging of moving targets and the estimation of their real positions are discussed, such as monopulse and DPCA. Experimental results are shown on correction o...

In this paper we propose a complete computational system for Auditory Scene Analysis. This time-frequency system localizes, separates, and spatializes an arbitrary number of audio sources given only binaural signals. The localization is based on recent research frameworks, where interaural level and time differences are combined to derive a confident direction of arrival (azimuth) at each frequ...

We discuss an efficient phase preserving technique for ScanSAR focusing, used to obtain images suitable for ScanSAR interferometry. Given two complex focused ScanSAR images of the same area, an interferogram can be generated as for conventional repeat pass SAR interferometry. However, due to the non-stationary azimuth spectrum of ScanSAR images, the coherence of the interferometric pair and the...

The effects of loudspeaker azimuth and reference microphone location on probe tube microphone measures were assessed. The real ear unaided response (REUR), real ear aided response (REAR), and real ear insertion response (REIR) were obtained on a KEMAR. Aided measures were obtained with both a behind-the-ear and an in-the-ear hearing aid. All three measurements were affected by changes in the lo...