ELIMINATING RADAR AMBIGUITIES BY PROCESSING STAGGERED PULSE TRAINS OR SPECTRA.
Abstract
A method for reducing or eliminating doppler and/or range ambiguities ordinarily associated with using repetitive waveforms in radar has been developed. The basic idea calls for building two radar systems into one. Two different waveforms are impressed on one carrier, the waveforms being designed in such a fashion that they can be separated and processed in different receiver channels. The combined information of the two processed signals is used to reduce or to eliminate ambiguities. Analog computation has been used to study the feasibility of generating and processing the proposed waveforms. A new method for measuring small frequency shifts is suggested. A pair of pulses is used; the first and the second pulse will produce ringing at the outputs of a first and a second narrowband filter, respectively, and the relative phase of the ringing oscillations is shown to be linearly related to the difference between the carrier frequency and the filter center frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 19, 1968
- Accession Number
- AD0667455
Entities
People
- H. H. Woerrlein
Organizations
- United States Naval Research Laboratory