...
Build a low power Millstone Hill background ISR
The idea of this this exercise is to build a low power version of the Millstone zenith antenna that can make a measurement every 5 minutes. To do this, use the Existing ISR simulator . Use the present zenith antenna which has the following characteristics:
Freq: 500E6 440E6 Hz
Present diameterDiameter: 42 68 m
Typical peak power: 1.0E6 W
Tau7 pulse Pulse length: 1920480.0E-6 seconds
Tau7 pulse mode duty cycle: 0.096
Jan 1, 81 88 degree elevation.
- Latitude 78 42 degrees, longitude 16 -71 degrees
Determine how many seconds low peak power 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?use to get 10% error at 5 minutes integration.