[특허]Method for the automated editing of seismic traces using an adaptive network

Method for the automated editing of seismic traces using an adaptive network 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/18 G06F-015/00 G06F-015/58
출원번호	US-0585861 (1990-09-20)
발명자 / 주소	McCormack Michael D. (Plano TX)
출원인 / 주소	Atlantic Richfield Company (Los Angeles CA 02)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

An adaptive, or neural, network and a method of operating the same is disclosed which is particularly adapted for performing seismic trace editing for seismic shot records. The adaptive network is first trained according to the generalized delta rule. The disclosed training method includes backpropagation is performed according to the worst case error trace, including adjustment of the learning and momentum factors to increase as the worst case error decreases. Slow convergence regions are detected, and methods applied to escape such regions including restoration of previously trimmed dormant links, renormalization of the weighting factor values, and the addition of new network layers with links between nodes that skip the hidden layer. After the training of the network, data corresponding to a Discrete Fast Fourier Transform of each trace, and to certain other attributes of the trace and adjacent traces thereto, are presented to the network. The network classifies the trace as good or noisy according to the inputs thereto, and to the weighting factors therewithin, such classification useful for ignoring noisy traces in subsequent data analysis. The analysis may be repeated for all of the traces in the shot record, and in multiple shot records.

대표청구항 ▼

A method for operating a computer as an adaptive network to classify each of a plurality of seismic traces as useful or noisy, according to noise amplitude of in each trace, each of said traces corresponding to seismic vibrations detected responsive to a seismic source input signal, comprising: retrieving stored data representative of a first of said plurality of traces; generating a frequency domain amplitude spectrum for said first trace from said retrieved data; presenting data from said frequency domain amplitude spectrum to input nodes of said adaptive network, said adaptive network indicating, responsive to said frequency domain amplitude spectrum data, a classification of said first trace as useful or noisy; and storing the result of said presenting step.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method for the automated editing of seismic traces using an adaptive network 원문보기

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Method for the automated editing of seismic traces using an adaptive network 원문보기

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