Accession Number : ADD011187

Title :   Stepped Frequency Radar Target Imaging.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Wehner,D R ; Prickett,M J

Report Date : 22 May 1984

Pagination or Media Count : 13

Abstract : An apparatus is disclosed by which radar targets can be imaged in two dimensions for identification at full radar range using relatively moderate speed data processing. Images of targets are found in range and cross-range dimensions from the time history of the targets' wide-band spectral response obtained by a frequency stepping radar. A frequency synthesizer generates a series of N identical signal bursts, each burst comprising n pulses and each of said n pulses being a different frequency. The radar echos from this series of bursts is separated into n-phase and quadrature phase components. These components are processed to calculate and store the relative amplitude of each echo signal relative to the phase of the corresponding transmitted pulse.

Descriptors :   *Patents, *Radar images, *Range finding, *Radar targets, *Doppler radar, *Echoes, Rotation, Frequency synthesizers, Spectra, Signals, Range(Distance), Data processing, Response, Orthogonality, Scalers, Broadband, Amplitude, Pulses, Targets, Parts, Images

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE