(Units) an SI unit of solid angle; the angle that, having its vertex in the centre of a sphere, cuts off an area of the surface of the sphere equal to the square of the length of the radius. Symbol:sr [C19: from stereo- + radian] ...
Thus we convert the differential area element dA into steradian ([ohm]) space, i.e., let d[ohm] = dA/[r.sup.2], then the power density at steradian-space can be formulated as MIMO radar transmit beampattern synthesis via minimizing sidelobe level These antennas provide AR better than 3d...
It isthe angle subtended by an arc along the perimeter of the circle with length equal to the radius. A steradian may be defined using Figure (b). ... An antenna efficiency e can be defined as the ratio of the radiated power to the total power fed to the antenna. What is radian an...
energijska sevnost, radianca (L): sevalni tok ali izstopna moč na prostorski kot na enoto površine, izražen v vatih na kvadratni meter na steradian (W m- 2 sr-1); EurLex-2 (h) radiance (L): the radiant flux or power output per unit solid angle per unit area, ...
The SI prefix "peta" represents a factor of 1015, or in exponential notation, 1E15. So 1 petacandela = 1015candelas. The candela (symbol: cd) is the SI base unit of luminous intensity. It is the power emitted by a light source in a particular direction, weighted by the luminosity fu...