Title :
Impact of noise on amplitude-phase measurement precision and improvement of microwave receiver
Author :
Yu-Liang, Dong ; Guo-Yu, He ; Zhi, Tan
Author_Institution :
E.E. Dept., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
This paper aims at the analysis and improvement of amplitude-phase measurement precision, on the basis of the signal model accompanied by additive noise and its classical probability density functions. In the presence of narrowband Gaussian noise, the relationship between measurement precision and output signal-to-noise ratio is discussed and analyzed in detail. The work presented in this paper includes an improved microwave-millimeter wave receiver, characterized. by DSBSC and low-IF quadrature demodulation. Its high precision and some other advantages have been proved by practical tests.
Keywords :
Gaussian noise; demodulation; microwave measurement; microwave receivers; millimetre wave receivers; phase measurement; probability; test equipment; DSBSC AM; MM-wave receiver; PDF; additive noise; amplitude-phase measurement precision; double sideband suppressed-carrier amplitude modulation; high precision receiver; low-IF quadrature demodulation; microwave receiver; narrowband Gaussian noise; output SNR; output signal-to-noise ratio; precision evaluation; probability density functions; signal model; Additive noise; Density measurement; Gaussian noise; Microwave measurements; Narrowband; Noise level; Noise measurement; Probability density function; Signal analysis; Signal to noise ratio;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187651
