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.
JPG vs PNG. When it comes to images, there are a number of formats to choose from in saving to a digital copy. Each format has its own strengths and weaknesses, and choosing the right format can be a great advantage. Two of these formats are JPG and PNG. The main difference between JPG and PNG is the compression algorithms that they use. JPG uses a lossy compression algorithm that discards some of the image information in order to reduce the size of the file. In comparison, PNG uses a lossless algorithm that keeps all the information.