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Array Phasing

When we randomly dither the position of the emitters in a 3 dimensional phased array, it smears out the grating lobes. I am looking for a better function.

A smear function to try:

D=2  k=2NL 

x=D(sin(kz)+cos(ky)) \ \delta y = D * ( \sin( k x ) + \cos( k z ) )

\delta z = D * ( \sin( k y ) + \cos( k x ) )

... or some variation of that. This assumes the spacing L >> \lambda , a sparse array, so that the antennas do not couple (much). We can scale D and k, and also modify amplitudes across the array like a Hamming window, and see how that changes the sidelobes.

MORE LATER

ArrayPhasing (last edited 2022-03-15 01:37:15 by KeithLofstrom)