echo

Question 1

Name all means of eliminating aliasing

Answer 1

1. image @ shallower depth
2. increase angle of insonificaiton (will lose accuracy of velocity estimation)
3. use low frequency transducer
4. use CW (at expense of range resolution)
5. change the scale
6. change the display baseline
   #

Question 2

define nyquist limit

Answer 2

upper limit of doppler shift which can be displayed.
= pulse repitition frequency/2
#