Page 85 - Fundamentals of Radar Signal Processing

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Problems

1. Compute the range R corresponding to echo delays t of 1 ns, 1 μs, 1 ms,
0
and 1 second.

2. Compute the time delays for two-way propagation to targets at distances of
100 km, 100 statute miles, and 100 ft.

3. Radar is routinely used as one means of measuring the distance to objects in
space. For example, it has been used to calculate the orbital parameters
and rate of rotation of the planet Jupiter. The distance from Earth to Jupiter
6
6
varies from 588.5 × 10 to 968.1 × 10 km. What are the minimum and
maximum time delays in minutes from the time a pulse is transmitted in the
direction of Jupiter until the time the echo is received? If pulses are
transmitted at a rate of 100 pulses per second, how many pulses are in
flight, either on their way to Jupiter or back again, at any given instant?

4. Table 1.1 defines the millimeter wave (MMW) band to extend from 40 to
300 GHz. Only certain frequencies in this band are widely used for radar.
This is partly due to frequency allocation rules (which frequencies are