Title :
Sensitivity of Doppler RADAR with Sell-Detecting Diode Oscillators
Author :
Nygren, Thorsten ; Sjölund, Anders
fDate :
5/1/1974 12:00:00 AM
Abstract :
The behavior of Doppler RADAR with self-detecting diode oscillators is described. Conditions for the frequency deviation to contain only the first harmonic of the Doppler shift frequency are given. The conversion gain and the signal-to-noise (S/N) ratio includlng both intrinsic LF and RF noise are calculated. An equivalent LF circuit is obtained. The shape of the I-V characteristic of the oscillating diode is shown to be important for the design of a Doppler module.
Keywords :
Circuit noise; Diodes; Doppler radar; Doppler shift; Low-frequency noise; Noise shaping; Oscillators; RF signals; Radio frequency; Signal to noise ratio;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1974.1128268
