[time-nuts] Re: Composite sky GPS - with an added digression
Lux, Jim
jim at luxfamily.com
Sun Jul 2 00:28:08 UTC 2023
On 7/1/23 9:42 AM, Lux, Jim via time-nuts wrote:
> On 6/30/23 6:40 PM, glen english LIST via time-nuts wrote:
>> Hi Jim
>>
>> Seems this question of mine is well covered in the ether.
>>
>> Yes, might not be as bad as I think. I'll write a program to compute
>> various scenarios and also will be interested to see how the fixes
>> get affected with loss of signal over some AZEL patch of the sky.
Here's some samples with the two antennas (cos^2() pattern) angled at 0
(both pointing at zenith), 45 and 60 degrees off zenith. The two
antennas are 5 wavelengths apart (1 meter for 1500 MHz L1)
I clamped the antenna patterns at -20dB (in reality it would be some
sort of weird pattern with lots of lobes and nulls, but all small)
Python code to generate it also attached.
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