Potential effectiveness of spatial processing in detecting signals against background of interfering reflections
Abstract
The potential for spatial compensation of interfering reflections and signal detection against the background of interference in the main and side lobes of the directivity pattern of arrays, and in systems employing separate antennas was assessed. The signal/(interference plus noise) ratio at the output of an optimum detector is investigated as a function of the angular extent of the family of interfering reflectors and the angular offset of the objects from the center of the family of interfering reflectors. The possibilities of spatial compensation for interference are examined. The results for a single transmitting antenna are extended to the case of several interfering antennas. The maximum achievable gain in signal to noise ratio is found for an object located near the center of the family of interfering reflectors for spatially coherent antenna systems and transmitting antennas. Analogous results can be obtained for spatially incoherent antenna systems and transmitting antennas.
- Publication:
-
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- December 1984
- Bibcode:
- 1984RpEEE........9C
- Keywords:
-
- Optical Communication;
- Signal Detection;
- Signal Processing;
- Signal Reflection;
- Spatial Distribution;
- Antenna Arrays;
- Radio Frequency Interference;
- Signal To Noise Ratios;
- Communications and Radar