The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2010
Filed:
Sep. 28, 2007
Jon H. Sherman, Los Angeles, CA (US);
John P. Kilkelly, San Pedro, CA (US);
Helen L. Sun, Rancho Palos Verdes, CA (US);
Ralph E. Hudson, Los Angeles, CA (US);
Jon H. Sherman, Los Angeles, CA (US);
John P. Kilkelly, San Pedro, CA (US);
Helen L. Sun, Rancho Palos Verdes, CA (US);
Ralph E. Hudson, Los Angeles, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
Provided is a non-statistical method for compressing and decompressing complex SAR data derived from reflected energy. The method includes selecting a first FFT to provide a target ratio of pixel spacing to resolution. A second FFT is then selected which is smaller than the first FFT. The data is zero-padded to fill the second FFT and transformed to provide at least one transfer frequency. This transfer frequency is then transferred to the at least one remote site. At the remote site the second FFT is inverted to restore the data from the received transfer frequency. The restored data is then zero-padded again to fill the first FFT. The first FFT is then used to transform the zero-padded restored data to provide a data set of points with the target ratio of pixel spacing to resolution.