of noise in signalprocessing. In communication systems, noise is an error or undesired random disturbance of a useful information signal in a communication
{\displaystyle TSS(dBm)=114+10.logF_{T}+10\log {\Big (}6.31B_{V}=2.5{\sqrt {2.B_{V}B_{R}-B_{V}^{2}}}{\Big )}} From this, the S:N of the RF signal, at the input
it is also named the discrete Karhunen–Loève transform (KLT) in signalprocessing, the Hotelling transform in multivariate quality control, proper orthogonal
neurons and the electrical signals they convey between input (such as from the eyes or nerve endings in the hand), processing, and output from the brain