The use of multiple transmitting antennas to provide beamwidth reduction for H.F. pulse radars with sector coverage
Abstract
It is shown that a useful reduction in radar system beamwidth for a given size of receiving antenna can be obtained by using a small number of suitably located transmitting antennas in a sequential manner. Optimum system parameters are obtained for two and three transmission schemes when the overall systems are required to have specified sidelobe levels. Multiple transmission systems do suffer from ambiguities in Doppler frequency and bearing and the distribution of these ambiguities is considered for the two and three transmission systems.
- Publication:
-
2nd International Conference on Antennas and Propagation
- Pub Date:
- 1981
- Bibcode:
- 1981icap.conf..129C
- Keywords:
-
- Antenna Radiation Patterns;
- High Resolution Coverage Antennas;
- Pulse Radar;
- Radar Antennas;
- Sidelobe Reduction;
- Angular Resolution;
- Antenna Arrays;
- Bearing (Direction);
- Coherent Radar;
- Doppler Effect;
- High Frequencies;
- Multibeam Antennas;
- Pulse Frequency Modulation;
- Radar Resolution;
- Radar Scanning;
- Spectrum Analysis;
- Communications and Radar