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.
These are just a few of the ideas that a portrait photographer can work on when developing a photo taken with the constructionist approach in mind. 2. The environmental approach, on the other hand, depicts the subject in their surrounding or environment. For instance, in their work place. A portrait can be taken of the subject being in his office, with a photo of his countryâs president or of his favorite global leader as background. 3. Thirdly, the candid approach. This is where the subject is photographed without his or her knowledge, hence, candid.