An unambiguous radar-correlation concept with high pulse-duration ratio
Abstract
A new radar system correlation concept is described which is completely unambiguous despite a pulse-duration ratio of a little over 1.3. Within a repetition period of twice the expected maximum echo-signal delay, a number of detached pulses of constant duration but with variable intervals are transmitted, determined by a power of the number 3. An array of parallel correlators is used to obtain a cross-correlation between the echo signal received during the nontransmitting intervals and the different reference pulse sequences assigned to the target ranges. All spaces between the pulses of the reference pulse sequences and those of the transmitted sequences are derived from a periodic quasi-stochastic ternary number sequence.
- Publication:
-
Archiv Elektronik und Uebertragungstechnik
- Pub Date:
- April 1981
- Bibcode:
- 1981ArElU..35..163R
- Keywords:
-
- Cross Correlation;
- Pulse Radar;
- Signal Reception;
- Matrices (Mathematics);
- Pulse Duration;
- Radar Echoes;
- Communications and Radar