Patent · US Expired

Unfocussed signal processing apparatus for a synthetic aperture radar having a rotating antenna

US5381152A · kind A · utility

7Cited by

4References

16Claims

0Family size

Assignee

Deutsche Aerospace AG · DE

Inventor

Helmut Klausing · Lingen (Ems), DE

Key dates

Filing date	Oct 5, 1993
Grant date	Jan 10, 1995
Priority date	—
Expiry date	Oct 5, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG01S13/9082
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a rotating antenna synthetic aperture radar, a method and apparatus for unfocussed signal processing for the correlation of the received signals by means of the reference functions. In unfocussed signal processing, only the main portion of the receiving signal S.sub.E is used, in which the phase shift is smaller than or equal to 90.degree. for the go-and return-path of the signal. A simplified window function is used as a reference function whose width also corresponds to the main portion of the received signal. Preferably, the in-phase and quadrature component (I.sub.r, Q.sub.r) of the window function r are selected to be identical.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.