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ULTRASOUND ARTIFACTS

ARTIFACTS

QuestionAnswer
SPECULAR REFLECTION PRODUCED WHEN US WAVES ATRIKE A SMOOTH SURFACE, SURFACE MUST BE LARGER THAN THE SOUNDWAVE
SCATTER REFLECTION RE-DIRECTION OF SOUNDWAVES IN MULTIPLE DIRECTIONS. PRODUCED WHEN US STRIKES A ROUGH SURFACE. SURFACE MUST BE EQUAL TO OR< WAVELENGTH
SCATTERING IS DIRECTLY RELATED TO ? FREQUENCY. ^ FREQ
RALEIGH SCATTER FORM OF SCATTER WHEN SOUNDWAVE SCATTERS SYSTEMATICALLY IN ALL DIRECTIONS
BACK SCATTER A.K.A. DIFFUSE SCATTERING. SCATTER THAT RETURNS IN THE DIRECTION OF THE TDXR
WHEN DOES REFRACTION OCCUR DIFFERENCES IN PROPAGATION SPEED OR OBLIQUE INCIDENCE (OTHER THAN 90 DEG)
REVERBERATION REFLECTION OCCURING FROM STRONG REFLECTOR, LOOKS LIKE LADDER RUNGS
SIDE LOBES PRODUCED FROM SINGLE ELEMENT TDXR
GRATING LOBES PRODUCED FROM ARRAY TDXR.
SHADOWING LOW LEVEL ECHOES PRODUCED FROM STRONG REFLECTORS
ENHANCEMENT HIGH LEVEL ECHOES PRODUCED FROM LOW ATTENUATED REFLECTORS
RANGE AMBIGUITY DEEP STRUCTURES APPEAR CLOSER TO THE TDXR THAN THEY ACTUALLY ARE.
Created by: ECHOMAMA
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