Enhanced radio frequency carrier margin improvements for an array of receiving systems with unequal predetection signal-to-noise ratios
Abstract
Enhanced radio frequency carrier margin improvement for arrayed receiving systems for coherent reception which provides a significant carrier sensitivity improvement with a resultant decrease in telemetry radio loss due to reduction in rms phase noise at low carrier margins is discussed. A significant increase in doppler rate capability is realized relative to that obtained by switching to a narrower tracking loop bandwidth to obtain the same carrier sensitivity improvement. The situation for arrayed receiving systems with unequal apertures and statisically independent predetection noise is examined.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- February 1984
- Bibcode:
- 1984tdar.nasa..170B
- Keywords:
-
- Antenna Arrays;
- Carrier Frequencies;
- Margins;
- Radio Frequencies;
- Signal To Noise Ratios;
- Apertures;
- Bandwidth;
- Telecommunication;
- Telemetry;
- Communications and Radar