MULTIPATH SUPPRESSION BY SWEPT FREQUENCY METHODS,
Abstract
The suppression of multipath propagation effects by random and sinusoidal frequency modulation is investigated theoretically. Experiments using a 94 GHz 'noise' radar show the theoretical results to be correct. Suppression of multipath effects using Gaussian noise modulation exhibits an exponential behavior as a function of the product of the RMS frequency deviation (Delta omega) and the multipath delay time (Upsilon). Sinusoidal modulation results in multipath suppression which behaves as the absolute value of the zero order Bessel function of the first kind whose argument is (Delta omega Upsilon). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- AD0682728
Entities
People
- Richard A. Mcgee
Organizations
- Ballistic Research Laboratory