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.

Date of Patent:
May. 29, 2018

Filed:

Sep. 24, 2015
Applicant:

Mark Resources, Inc., Torrance, CA (US);

Inventor:

Richard L. Mitchell, Palos Verdes, CA (US);

Assignee:

MARK Resources, Inc., Torrance, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/292 (2006.01); G01S 7/35 (2006.01); G01S 7/40 (2006.01); G01S 7/487 (2006.01); G01S 7/486 (2006.01);
U.S. Cl.
CPC ...
G01S 7/2921 (2013.01); G01S 7/2923 (2013.01); G01S 7/352 (2013.01); G01S 7/354 (2013.01); G01S 7/4021 (2013.01); G01S 7/486 (2013.01); G01S 7/4876 (2013.01);
Abstract

It is common practice in modern radar to utilize some type of downconversion to an intermediate frequency or baseband before analog-to-digital conversion takes place. Several microwave components are needed for this downconversion process, including a tunable local oscillator, bandpass filters, amplifiers, and other signal conditioning devices. The present invention eliminates many microwave components in the radar receiver by sampling the received signal directly, without downconversion or mixing. The manipulation of the received signals that was formerly done with microwave hardware is now done in a digital signal processor. In addition to simplifying the receiver hardware, this invention will also lead to better utilization of the frequency band, less interference from adjacent bands, improvements in system reliability and stability, reduction in system operation and maintenance costs, and will facilitate future system modifications and upgrades.


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