STATISTICS OF THE RADAR CROSS SECTION OF A VOLUME OF CHAFF
Abstract
The average and standard deviation of the radar cross section of chaff is computed under the assumptions that dipoles are randomly oriented and randomly distributed within a radar resolution volume. For a single type of chaff, the standard deviation approaches the average value as the average number of dipoles increases. When the number of dipoles per resolution volume is small, the statistics of the single dipole cross section are important. The results are then generalized to the case of several types of dipoles distributed in space. The average cross section is simply the sum of the average cross sections for each type; however, the standard deviation involves additional terms which are not small. These terms are just sufficient to again provide the Rayleigh limit (delta s/<s> approaches limit of 1) as the number of dipoles increases.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 10, 1965
- Accession Number
- AD0612887
Entities
People
- S. L. Borison
Organizations
- Massachusetts Institute of Technology