Study on effect of scattering of fog particles on laser-guidance
-
Received Date:
2008-03-04
Accepted Date:
2008-05-26
-
Abstract
In order to study the effect of the fog particles scattering on laser guidance and improve the guidance precision of guided weapons,based on Mie theory,considering the particle size distribution function,the scattering model of the group particles was obtained.With the help of the model,the relationship between the target position deviation angle and the scattering intensity was obtained and the effect of scattered light on the signal was analyzed from the view of scattering.The calculation showed that the echo signal was influenced obviously by the backscattered light from the atmospheric particles at a certain scale distribution.The results are valuable for the study on the effect of back scattering of atmospheric particles on the laser-guided precision.
-
-
References
[1]
|
PARK S O,LEE S S.Forward far-field pattern of a laser beam scattered by a water suspended homogeneous sphere trapped by a laser beam[J].J O S A,1987,A4(3):417-422. |
[2]
|
WU J,LE S X.The theory of light propagating in the random medium[M].Chengdu:Chengdu College of Electronic and Communicative Engineering Press,1988:18-20 (in Chinese). |
[3]
|
XU X Z.The basis theory of the atmosphere physics[M].Beijing:China Meteorological Press,1993:36-40(in Chinese). |
[4]
|
PROBER-JONES J R.Resonance component of backscattering bylarge dielectric spheres[J].J O S A,1984,A1(8):822-830. |
[5]
|
LIU J B,WU J.Scattering and polarization properties of a complex refractive index spherical particles[J].Laser Technology,2005,29(1):66-67(in Chinese). |
[6]
|
van de HULST H C.Light scattering by small particles[M].New York:Wiley,1957:32-40. |
[7]
|
ZHOU B K,GAO Y Z,CHEN T R,et al.The principle of laser[M].4th ed.Beijing:National Defence Press,2000:121-125(in Chinese). |
[8]
|
IVASIV I B.Regularization of size spectrum reconstruction problem for intensive absorbing particles by the errors of light scattering models[C] //Instrumentation and Measurement Technology Conference.Brussels:IEEE,1996:1174-1177. |
[9]
|
LIU J B,WU J.Light scattering model and angular spectrum of scattering intensity in fogs[J].High Power Laser and Particle Beams,2005,17(3):355-358(in Chinese). |
[10]
|
AN K,WANG H M,REN G,et al.A new angle-measurement algorithm of the detector with four quadrants[J].Laser & Infrared,2001,31(6):328-329(in Chinese). |
-
-
Proportional views
-