#### ISR simulation tools

#### Run simulations of the existing Svalbard ISR

Choose the Svalbard Fixed (up B) ISR in tau7 mode

Run for 24 hours during Jan. 1st at a 81 degree elevation using 240 seconds of integration

Determine how many seconds you can reduce the integration period to and still have less than 20% error at all times at altitudes of:

1000 km

500 km

Describe what happens when the integration period gets short.

#### Run simulations of the Svalbard fixed with 2x the diameter

Create a new radar by giving the Svalbard fixed radar twice the diameter. To do this, you will need to know the following parameters about the Svalbard fixed ISR:

Freq: 500E6 Hz

Present diameter: 42 m

Typical peak power: 1.0E6 W

Tau7 pulse length: 1920.0E-6 seconds

Tau7 pulse mode duty cycle: 0.096

Jan 1, 81 degree elevation.

- Latitude 78 degrees, longitude 16 degrees

Determine how many seconds you can reduce the integration period to and still have less than 20% error at all times at altitudes of:

1000 km

500 km

How much difference does this extra aperture make at 1000 km? At 500 km?

Now change the elevation at 5 degrees (its a virtual radar, after all!). What happens at 1000 km altitude? What parameter could you change to make things better at 1000 km?