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A Lossy acoustic Logging While Drill Compression Scheme based on Differential Prediction and FFT

2011; Trans Tech Publications; Volume: 230-232; Linguagem: Inglês

10.4028/www.scientific.net/amr.230-232.1049

1662-8985

Yu Jie Liu, Yun Zhou, Hong Xiao,

Advanced Numerical Analysis Techniques

In this paper, by analyzing the characteristics of the data, we adopt lossy compression based on predictive coding method and FFT. Firstly, two-way differential prediction method is used for data, and then the predicted data is transformed into the frequency-domain data and only the significant components are selected, and finally three classical adaptive compression algorithms are used to compress the significant components, and have made a good compression ratio. Then, our algorithm is tested and compared with Winrar software, and our algorithm is superior to it using our test data.