Accession Number : ADD008688

Title :   A Double Sideband Linear Frequency Modulation System for Radar Applications.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Fletcher,Robert H , Jr

Report Date : 15 Apr 1981

Pagination or Media Count : 11

Abstract : A double sideband linear frequency modulation technique for radar applications is disclosed for obtaining simultaneous range and doppler measurements. The method of obtaining measurements is useful in a variety of radar applications; however, the most promising area is in continuous wave radar systems. Linear Frequency Modulated (LFM) waveforms of both increasing and decreasing frequency are simultaneously transmitted. Upon reception these sideband signals are combined coherently to give an output that is a function of the target's radial velocity. The received signals are also processed separately to obtain target ranging information. (Author)

Descriptors :   *PATENT APPLICATIONS, *Continuous wave radar, *Radar signals, *Doppler radar, *Radar tracking, Position finding, Dual mode, Sidebands, Frequency modulation, Waveforms, Radial velocity, Bandpass filters, Circuit analysis

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE