Maximum angular accuracy of tracking a radio star by lobe comparison
- 1 January 1960
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 8 (1), 50-56
- https://doi.org/10.1109/tap.1960.1144808
Abstract
A general expression is derived for the maximum angular accuracy of tracking a radio star by lobe comparison (or monopulse). This angular accuracy depends on the input signal-to-noise ratio, the wavelength, the time-bandwidth product of signal integration, and the effective length of the antenna aperture. The maximum angular accuracy can be obtained, approximately, by performing a simple correlation of odd and even components of the antenna output. Angular accuracy formulas for simple antenna dishes or for interferometers appear as special cases of the general result. The Appendix discusses the interferometer technique in more detail, and the angular accuracy for the data processing technique used by M. Ryle is compared with that obtained from the optimum processing.Keywords
This publication has 2 references indexed in Scilit:
- Aperture Illuminations for Radar Angle-of-Arrival MeasurementsTransactions of the IRE Professional Group on Aeronautical and Navigational Electronics, 1953
- A new radio interferometer and its application to the observation of weak radio starsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952