ZERO-CROSSING RATE OF DIFFERENTIATED SPECKLE INTENSITY

被引:8
作者
BARAKAT, R [1 ]
机构
[1] HARVARD UNIV,AIKEN COMPUTAT LAB,CAMBRIDGE,MA 02138
来源
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1994年 / 11卷 / 02期
关键词
D O I
10.1364/JOSAA.11.000671
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The zero-crossing rate of differentiated speckle whose intensity is governed by a negative exponential probability-density function (i,e., fully developed speckle) is evaluated in closed form with the use of an exact expression for the joint probability-density function of the intensity and its first two derivatives. The conditional zero-crossing rate of differentiated speckle, given that the intensity is specified, is also obtained in closed form.
引用
收藏
页码:671 / 673
页数:3
相关论文
共 14 条
[1]  
[Anonymous], 1996, TABLES INTEGRALS SER
[2]   EXPECTED NUMBER OF INTENSITY LEVEL-CROSSINGS IN A NORMAL SPECKLE PATTERN [J].
BAHUGUNA, RD ;
GUPTA, KK ;
SINGH, K .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1980, 70 (07) :874-876
[3]   LEVEL-CROSSING STATISTICS OF APERTURE-INTEGRATED ISOTROPIC SPECKLE [J].
BARAKAT, R .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1988, 5 (08) :1244-1247
[4]   LEVEL-CROSSING RATE AND ABOVE-LEVEL DURATION TIME OF THE INTENSITY OF A GAUSSIAN RANDOM PROCESS [J].
BARAKAT, R .
INFORMATION SCIENCES, 1980, 20 (01) :83-87
[5]  
BENDAT JS, 1958, PRINCIPLES APPLICATI, pCH10
[6]   LEVEL-CROSSING PROBLEMS FOR RANDOM PROCESSES [J].
BLAKE, IF ;
LINDSEY, WC .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1973, 19 (03) :295-315
[7]   STATISTICAL PROPERTIES OF SPATIAL DERIVATIVES OF THE AMPLITUDE AND INTENSITY OF MONOCHROMATIC SPECKLE PATTERNS [J].
EBELING, KJ .
OPTICA ACTA, 1979, 26 (12) :1505-1521
[8]  
LEADBETTER M, 1983, EXTREMES RELATED PRO, P115
[9]   EXACT SOLUTION OF THE ZERO CROSSING RATE OF A DIFFERENTIATED SPECKLE PATTERN [J].
OHTSUBO, J .
OPTICS COMMUNICATIONS, 1982, 42 (01) :13-18
[10]  
STRATONOVICH RL, 1967, TOPICS THEORY RANDOM, pCH3