Adaptive arrays and sidelobe cancellers for communications and radar applications
Abstract
Adaptive array techniques are examined as a possible solution to the problem of interference received through sidelobes, due to the automatic null steering in both the spatial and frequency domains. Four specific criteria, which have found applications in electromagnetic systems, including evaluation of the Neymann-Pearson likelihood ratio, and the maximization of the output signal-to-noise ratio, are discussed. Emphasis is placed on the elementary principle of the collection loop to explain problems in its implementation. It is determined that multiple sidelobe cancellers can provide an effective counter to jamming waveforms of high duty ratio such as broadband noise.
- Publication:
-
Military microwaves 1978
- Pub Date:
- 1979
- Bibcode:
- 1979mimi.proc..366H
- Keywords:
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- Adaptive Filters;
- Antenna Arrays;
- Communication Equipment;
- Radar Antennas;
- Sidelobe Reduction;
- Broadband;
- Electronic Countermeasures;
- Loops;
- Signal To Noise Ratios;
- Communications and Radar