microwave tagged posts
The transmitter provides the rf sign in enough energy for the radar sensitivity desired and sends it to the antenna, which causes the signal to be radiated into area in a desired direction. The signal propagates in space, and some of it is intercepted by reflecting our bodies. These reflections, partly no less than, are radiated back to the antenna. The antenna collects them and routes all such acquired signals to the receiver, the place they are amplified and detected. The presence of an echo of the transmitted sign in the received sign reveals the presence of a goal.
Collocations With Radar
The echo is indicated by a sudden rise in the output of the detector, which produces a voltage proportional to the sum of the rf signals being obtained and the rf noise inherent within the receiver i...Read More
The RIEC had been established in 1916 on the campus of the Italian Naval Academy in Livorno. Lieutenant Ugo Tiberio, a physics and radio-technology teacher on the Academy, was assigned to go the project on a part-time basis.
Shot noise is produced by electrons in transit throughout a discontinuity, which occurs in all detectors. There may also be flicker noise brought on by electron transit by way of amplification devices, which is decreased utilizing heterodyne amplification. Another reason for heterodyne processing is that for mounted fractional bandwidth, the instantaneous bandwidth increases linearly in frequency.
The one notable exception to heterodyne radar techniques is ultra-wideband radar...Read More