Autocorrelation receiver for Doppler short-range radar systems
Abstract
An autocorrelation Doppler frequency receiver is theoretically and experimentally investigated. It is shown that the structure of a Doppler frequency meter of the autocorrelation type makes it possible to decrease the required signal to noise ratio at the input of the meter to 2.5 to 3. In this case the optimum ratio of the levels of operation of the two shapers, with the probabilities of false alarms and the admission of a signal equal to 0.01;U2/U1 = 2.5. Such an autocorrelator makes it possible to exclude inaccurate measurement of the frequencies of the Doppler signal and to increase the minimum range of the equipment of short range radar.
- Publication:
-
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- May 1984
- Bibcode:
- 1984RpEEE....R...6K
- Keywords:
-
- Autocorrelation;
- Doppler Radar;
- Radar Receivers;
- Frequency Measurement;
- Radar Range;
- Signal Measurement;
- Signal To Noise Ratios;
- Communications and Radar