A C-LANGUAGE PROGRAM FOR THE COMPUTATION OF POWER SPECTRA ON A LABORATORY MICROCOMPUTER

作     者：WEBBER, CL 

作者机构：Department of Physiology Loyola University of Chicago Stritch School of Medicine 2160 South First Avenue Maywood IL 60153 U.S.A. 

出 版 物：《COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE》 (生物医学的计算机方法与程序)

年 卷 期：1986年第22卷第3期

页      面：285-291页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1001[医学-基础医学(可授医学、理学学位)] 0812[工学-计算机科学与技术（可授工学、理学学位）] 10[医学] 

基　　金：NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL032888] Funding Source: NIH RePORTER NHLBI NIH HHS [R01 HL 32888] Funding Source: Medline 

主　　题：C programming language Fast Fourier transforms Power spectra Signal analysis 

摘      要：A computer program is described which performs power-spectral analyses on time-domain data. The program is written in the C language and incorporates an algorithm for the fast Fourier transform translated from BASIC into C. Sequential segments of time-domain data are accessed by the program, transformed to the frequency domain, and ensemble-averaged to generate smoothed spectra. Specific application of the program to the detection of high-frequency oscillations in the phrenic neurogram of the cat is addressed. Thus, 100 successive 512-point fast Fourier transforms were found to accurately reveal the relative strength (power) and frequency position (spectrum) of multiple peaks in this respiratory motor pathway. Because C language programs are very transportable, this program should run on machines other than our LSI 11/23, provided a C-compiler is available.