TY - JOUR
T1 - Signal-to-Noise Ratio of Arbitrary Power-Series Nonlinear Amplifier
AU - Sasase, Iwao
AU - Mori, Shinsaku
AU - Shinriki, Masanori
PY - 1983/1
Y1 - 1983/1
N2 - A general analysis of the effect of an arbitrarv power-series nonlinear amplifier followed by a coherent mixing device on signal-tonoise ratio (SNR) is performed. An expression is derised for the improvement factor which is defined as the logarithm of the ratio of the output SNR to the input SNR. This expression is applicable to the coherent amplitude detector and phase locked loop as well as noncoherent amplifier bv appropriate selections of the detection angle. Moreover, the improvement factor can be obtained for noise with an arbitrary amplitude distribution. To demonstrate the applicability of this analysis, the improvement factors of the nonlinear amplifiers such as a power-law amplifier and a power-series amplifier with positive and negative discriminations are numerically calculated for the cases where the input noise amplitude distributions are Rician and triangular.
AB - A general analysis of the effect of an arbitrarv power-series nonlinear amplifier followed by a coherent mixing device on signal-tonoise ratio (SNR) is performed. An expression is derised for the improvement factor which is defined as the logarithm of the ratio of the output SNR to the input SNR. This expression is applicable to the coherent amplitude detector and phase locked loop as well as noncoherent amplifier bv appropriate selections of the detection angle. Moreover, the improvement factor can be obtained for noise with an arbitrary amplitude distribution. To demonstrate the applicability of this analysis, the improvement factors of the nonlinear amplifiers such as a power-law amplifier and a power-series amplifier with positive and negative discriminations are numerically calculated for the cases where the input noise amplitude distributions are Rician and triangular.
UR - http://www.scopus.com/inward/record.url?scp=0020593144&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020593144&partnerID=8YFLogxK
U2 - 10.1109/TAES.1983.309418
DO - 10.1109/TAES.1983.309418
M3 - Article
AN - SCOPUS:0020593144
VL - AES-19
SP - 40
EP - 48
JO - IRE Transactions on Aerospace and Navigational Electronics
JF - IRE Transactions on Aerospace and Navigational Electronics
SN - 0018-9251
IS - 1
ER -