This problem was solved by Dolph in 1946. He derives a method for obtaining weights for uniformly spaced linear arrays steered to broadside (=90 degrees). This is a popular weighting method because the sidelobe level can be specified, and the minimum possible null-null beamwidth is obtained.
â¢ A picture can be anything from a drawing to a painting, to an etching. â¢ All the images that we take without any knowledge in photography and which do not require our photographic talent are known as pictures. Related posts: 1  Difference Between Photo and Photograph. 2  Difference Between Photo and Image. 3  Difference Between Drawing and Painting. 4  Difference Between Artist and Designer.
Framing a print or work on paper differs significantly from framing a painting or other type of work of art. Paintings usually do not use glass to cover their surface while works on paper or prints typically require mats or spacers with a piece of glass covering its surface.veryone has had something framed at one time or another: a work of art, a needlework sampler, a certificate or diploma. With works of art, the frame is extremely important. I am pretty sure that you know several professional framers in your area. As with any other profession, some are good and some lousy.