1. It is requested that you design an ALS mission to collect data on urban/sub-urban area. The area dimension is 10x15km2. The characteristics of the system used are as follows: a) pulse rate = 1

1.      It is requested that you design an ALS mission to collect data on urban/sub-urban area. The area dimension is 10x15km2. The characteristics of the system used are as follows: a) pulse rate = 100 KHz, b) the scan angle = 30 degrees, c) beam divergence = 0.3 mrad. You have also been informed that the flying speed and altitude should not exceed 300 km/h and 1000m, respectively. [8 marks]

Calculate:

a-      The pulse footprint at an angle of 15°.

b-      The swath width of a strip covered by the system.

c-      The surveyed area rate.

d-      The mean point density.

e-      The mean point spacing.

f-       The time to complete the mission considering an overlap area between strips of not less than 20% and maneuvering time of 40% of the flying time to cover the area of interest.